DIPTI METAL INDUSTRIES
Socket Weld Flanges Class 900 Manufacturer, Exporter & Supplier in Mumbai, India | Global Worldwide
Dipti Metal Industries is a leading Socket Weld Flanges Class 900 manufacturer, Socket Weld Flanges Class 900 exporter, and worldwide Socket Weld Flanges Class 900 supplier from Mumbai, India, specializing in high-quality, high-pressure forged flanges. Our Class 900 Socket Weld (SW) flanges are engineered for secure, leak-proof piping connections where strength and integrity are paramount. They are designed for pipes to be inserted into a recessed area of the flange, allowing for a fillet weld around the outer diameter of the pipe, providing excellent structural strength and leak resistance for small-bore piping systems handling high pressures and temperatures. Extensively used in oil & gas, petrochemical, power generation, chemical processing, and marine industries. We offer a comprehensive range conforming to major international standards (ASME B16.5, ASME B16.47 Series A & B, MSS SP-44, API 605, DIN, EN, BS, JIS), available in diverse international material grades (Carbon Steel, Stainless Steel, Alloy Steel, Duplex, Super Duplex) and face types (Raised Face, Ring Type Joint). We provide custom manufacturing, rigorous testing, and fast worldwide deliveries, ensuring dependable performance for your demanding projects globally.
Overview: Dipti Metal Industries' Leadership in Socket Weld Flanges Class 900 Manufacturing & Supply
Dipti Metal Industries is a premier Socket Weld Flanges Class 900 manufacturer, exporter, and worldwide supplier of high-quality forged flanges from our advanced facilities in Mumbai, India. Recognized globally for our expertise in industrial pipe fittings, we provide essential components for ensuring the safety and efficiency of high-pressure piping systems across various sectors. Our Class 900 Socket Weld (SW) flanges are meticulously engineered to provide superior strength and exceptional leak integrity, specifically designed for small-bore piping where reliability under high internal pressure and temperature fluctuations is critical.
With decades of experience, Dipti Metal Industries designs and produces Socket Weld Flanges Class 900 in strict adherence to international standards, including ASME B16.5 (for flanges up to NPS 24), ASME B16.47 Series A & B (for larger diameters), MSS SP-44, API 605, DIN, EN, BS, and JIS. We offer a comprehensive range of dimensions, face types (Raised Face, Ring Type Joint), supplied in various international material grades (e.g., Carbon Steel, Stainless Steel, Alloy Steel, Duplex). Our commitment to precision forging, advanced machining, rigorous quality control, and full material traceability makes us the trusted partner for dependable and long-lasting flange solutions globally, ensuring the safety and operational efficiency of critical oil & gas, petrochemical, and power generation systems.
Key Features & Benefits of Dipti Metal Industries' Socket Weld Flanges Class 900
Dipti Metal Industries' Socket Weld Flanges Class 900 are expertly designed and manufactured to provide essential functions that enhance the reliability and longevity of high-pressure piping systems. Here are the key features and the significant benefits they deliver:
- Exceptional High-Pressure Resistance: Engineered for Class 900 pressure ratings, these flanges are specifically designed to withstand extreme internal pressures and challenging operating conditions typical in oil & gas, petrochemical, and power generation applications.
- Superior Leak Integrity: The socket weld design, where the pipe is inserted into the flange and then fillet welded, provides a very strong, permanent, and inherently leak-proof connection, reducing the risk of fugitive emissions.
- High Structural Strength: The combination of forged material and the full penetration fillet weld creates a robust joint capable of handling significant mechanical stress, vibration, and thermal cycling without compromising integrity.
- Ideal for Small-Bore Piping: Particularly well-suited for smaller nominal pipe sizes (NPS 1/2" to 2" typically) where the strength and leak resistance of a socket weld connection are highly advantageous compared to threaded or slip-on alternatives.
- No Beveling Required for Pipe End: Simplifies pipe preparation, as the pipe end does not need to be beveled, reducing fabrication time and cost compared to butt-weld flanges.
- Versatile Material & Face Type Options: Available in a broad spectrum of international materials (carbon steel, stainless steel, alloy steel, duplex) and face types (Raised Face, Ring Type Joint) to match process media, corrosion resistance, and specific gasket requirements.
- Reduced Weld Distortion: The fillet weld allows for less distortion than a full butt weld, which can be beneficial in certain applications and simplifies alignment.
Our Comprehensive Product Range: Socket Weld Flanges Class 900
Dipti Metal Industries manufactures and supplies an extensive and high-quality range of Socket Weld Flanges Class 900 from Mumbai, India. We offer diverse types, international material grades, face types, and dimensions, custom-engineered to meet the precise high-pressure connection requirements of your industrial applications globally.
1. Flange Type & Pressure Class
- Socket Weld (SW) Flanges: Designed with a recessed shoulder that allows the pipe to be inserted and then fillet welded around the outside. This provides a strong, leak-proof connection, particularly suited for high-pressure, small-bore piping.
- Pressure Class 900: Specifically manufactured to withstand high pressures, making them ideal for demanding applications in critical industries.
2. Face Types Available
- Raised Face (RF): The most common type, featuring a raised gasket surface above the bolting circle. This concentrates the compressive load on a smaller gasket area, increasing the joint's ability to contain pressure.
- Ring Type Joint (RTJ): Designed for high-pressure and high-temperature applications. Features a groove into which a metallic ring gasket is placed, providing a metal-to-metal seal under extreme conditions.
- Flat Face (FF): Less common for Class 900 but available for specific requirements.
3. International Material Grades
We manufacture Socket Weld Flanges Class 900 from various materials chosen for their strength, durability, and corrosion resistance under high-pressure conditions, conforming to major international standards:
| Material Type | ASTM / ASME Grade | EN / DIN Equivalent | JIS Equivalent | Key Characteristics |
|---|---|---|---|---|
| Carbon Steel | ASTM A105 | EN 10222-2 P250GH, DIN 1.0460 | JIS G3101 SS400, G3454 STPG370 | General high-temperature service, good weldability. |
| ASTM A350 LF2 | EN 10222-4 P265NL, DIN 1.0486 | JIS G3458 STPA22 | Low-temperature service, good notch toughness. | |
| Alloy Steel | ASTM A182 F5 | EN 10222-2 16CrMoV4 | JIS G4104 SCMV1 | 5% Cr, 0.5% Mo, high-temperature strength. |
| ASTM A182 F9 | EN 10222-2 X10CrMoVNb9-1 | JIS G4104 SCMV2 | 9% Cr, 1% Mo, higher temperature and corrosion resistance. | |
| ASTM A182 F11 | EN 10222-2 13CrMo4-5, DIN 1.7335 | JIS G4104 SCMV3 | 1.25% Cr, 0.5% Mo, moderate high-temperature service. | |
| ASTM A182 F22 | EN 10222-2 10CrMo9-10, DIN 1.7380 | JIS G4104 SCMV4 | 2.25% Cr, 1% Mo, elevated temperature applications, better creep resistance. | |
| ASTM A182 F91 | EN 10222-2 X10CrMoVNb9-1 | JIS G4109 STFA26 | Advanced ferritic steel for extreme high-temperature applications (power generation). | |
| Stainless Steel | ASTM A182 F304/304L | EN 10222-5 1.4301 / 1.4307, DIN X5CrNi18-10 | JIS G4304 SUS304/L | General purpose, good corrosion resistance, excellent weldability. |
| ASTM A182 F316/316L | EN 10222-5 1.4401 / 1.4404, DIN X5CrNiMo17-12-2 | JIS G4304 SUS316/L | Superior corrosion resistance (especially chlorides), suitable for marine and chemical. | |
| ASTM A182 F310 | EN 10222-5 1.4845, DIN X8CrNi25-21 | JIS G4304 SUS310S | High-temperature oxidation resistance. | |
| ASTM A182 F321 | EN 10222-5 1.4541, DIN X6CrNiTi18-10 | JIS G4304 SUS321 | Titanium stabilized, for high-temperature applications preventing carbide precipitation. | |
| Duplex SS | ASTM A182 F51 (Duplex 2205) | EN 10222-5 1.4462, DIN X2CrNiMoN22-5-3 | JIS G4304 SUS329J3L | High strength, excellent resistance to stress corrosion cracking. |
| Super Duplex SS | ASTM A182 F53 (Super Duplex 2507) | EN 10222-5 1.4410, DIN X2CrNiMoN25-7-4 | JIS G4304 SUS329J4L | Higher strength and corrosion resistance than duplex, for extremely aggressive environments. |
| ASTM A182 F55 | EN 10222-5 1.4501, DIN X2CrNiMoCuWN25-7-4 | Similar to F53 with improved properties, high PREN. | ||
| Nickel Alloys | Monel, Inconel, Hastelloy, etc. (available on special request for highly corrosive media or specific temperatures). | |||
This table provides common international grades. Dipti Metal Industries can supply Socket Weld Flanges Class 900 in a wider range of materials and country-specific specifications upon request. Always consult the respective material standards for detailed chemical composition and mechanical properties.
4. Dimensions & Size Range
- Nominal Pipe Size (NPS) Range:
- ASME B16.5: From 1/2" (DN15) up to 24" (DN600) for standard applications.
- ASME B16.47 Series A & B: For larger diameters beyond 24" (available on request).
- Specific Dimensions: Inner Diameter (Bore), Outer Diameter (OD), Thickness (Min. hub, Min. flange), Bolt Circle Diameter, Number and Size of Bolt Holes, Length through Hub, conforming to specified standards.
- Tolerances: Manufactured to precise tolerances to ensure proper fit-up and sealing performance.
ASME B16.5 Socket Weld Flanges Class 900 Dimensions (NPS 1/2" - 24")
This section provides illustrative dimensions for Socket Weld Flanges Class 900 as per ASME B16.5 standard. These flanges are suitable for smaller bore piping systems requiring high-pressure integrity.
| NPS | OD of Flange (in) | Diameter of Raised Face (in) | Thickness of Flange (Min) (in) | Length Through Hub (in) | Dia. of Hub at Base (in) | Bore of Flange (in) | No. of Bolts | Dia. of Bolts (in) | Bolt Circle Dia. (in) | Dia. of Bolt Holes (in) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 3.75 | 1.38 | 0.75 | 2.00 | 1.22 | 0.84 | 4 | 0.62 | 2.38 | 0.75 |
| 3/4 | 4.62 | 1.69 | 0.94 | 2.12 | 1.53 | 1.05 | 4 | 0.75 | 2.75 | 0.88 |
| 1 | 5.00 | 2.00 | 1.06 | 2.25 | 1.91 | 1.32 | 4 | 0.75 | 3.12 | 0.88 |
| 1 1/4 | 5.50 | 2.50 | 1.12 | 2.38 | 2.38 | 1.66 | 4 | 0.75 | 3.50 | 0.88 |
| 1 1/2 | 6.00 | 2.88 | 1.25 | 2.50 | 2.75 | 1.90 | 4 | 0.88 | 4.00 | 1.00 |
| 2 | 6.50 | 3.62 | 1.38 | 2.62 | 3.38 | 2.38 | 8 | 0.75 | 4.75 | 0.88 |
| 2 1/2 | 7.50 | 4.12 | 1.62 | 2.75 | 4.00 | 2.88 | 8 | 0.88 | 5.50 | 1.00 |
| 3 | 8.25 | 5.00 | 1.88 | 2.88 | 4.75 | 3.50 | 8 | 0.88 | 6.25 | 1.00 |
| 4 | 10.75 | 6.19 | 2.25 | 3.38 | 6.00 | 4.50 | 8 | 1.12 | 8.25 | 1.25 |
| 6 | 12.50 | 8.50 | 2.88 | 4.38 | 8.00 | 6.62 | 12 | 1.12 | 10.25 | 1.25 |
| 8 | 15.00 | 10.62 | 3.62 | 5.00 | 10.00 | 8.62 | 12 | 1.25 | 12.50 | 1.38 |
| 10 | 17.50 | 12.75 | 4.38 | 5.50 | 12.00 | 10.75 | 16 | 1.38 | 15.00 | 1.50 |
| 12 | 20.00 | 15.00 | 5.12 | 6.00 | 14.00 | 12.75 | 16 | 1.50 | 17.25 | 1.62 |
| 14 | 21.00 | 16.25 | 5.50 | 6.50 | 15.50 | 14.00 | 20 | 1.50 | 18.50 | 1.62 |
| 16 | 23.50 | 18.50 | 6.25 | 7.00 | 17.75 | 16.00 | 20 | 1.75 | 21.00 | 1.88 |
| 18 | 25.00 | 20.25 | 6.88 | 7.50 | 19.75 | 18.00 | 24 | 1.75 | 22.50 | 1.88 |
| 20 | 27.50 | 22.50 | 7.62 | 8.00 | 21.75 | 20.00 | 24 | 2.00 | 25.00 | 2.12 |
| 24 | 32.00 | 27.00 | 8.75 | 9.00 | 26.00 | 24.00 | 24 | 2.25 | 29.50 | 2.38 |
Note: These dimensions are illustrative and subject to manufacturing tolerances. Always refer to the latest edition of ASME B16.5 for official and complete specifications, including specific raised face dimensions, gasket details, and temperature-pressure ratings. The 'Bore of Flange' listed here is the approximate pipe ID for standard wall thickness (e.g., Sch 80 for smaller sizes, Sch XS for larger) and may vary based on actual pipe schedule and bore design.
ASME B16.47 Series A (MSS SP-44) Socket Weld Flanges Class 900 Dimensions (NPS 26" - 60")
This section provides illustrative dimensions for Class 900 Socket Weld Flanges as per ASME B16.47 Series A (also known as MSS SP-44). These flanges are designed for larger nominal pipe sizes and require specific attention to design and application.
| NPS | OD of Flange (in) | Thickness of Flange (Min) (in) | Length Thru Hub (in) | Bore of Flange (in) | No. of Bolts | Dia. of Bolts (in) | Bolt Circle Dia. (in) | Dia. of Bolt Holes (in) |
|---|---|---|---|---|---|---|---|---|
| 26 | 37.00 | 9.25 | 9.25 | 26.00 | 28 | 2.25 | 34.00 | 2.38 |
| 28 | 39.25 | 9.75 | 9.50 | 28.00 | 28 | 2.50 | 36.25 | 2.62 |
| 30 | 42.00 | 10.25 | 9.75 | 30.00 | 32 | 2.50 | 39.00 | 2.62 |
| 32 | 44.75 | 10.75 | 10.00 | 32.00 | 32 | 2.75 | 41.75 | 2.88 |
| 34 | 47.00 | 11.25 | 10.25 | 34.00 | 36 | 2.75 | 44.00 | 2.88 |
| 36 | 49.50 | 11.75 | 10.50 | 36.00 | 36 | 3.00 | 46.50 | 3.12 |
| 38 | 52.00 | 12.25 | 10.75 | 38.00 | 40 | 3.00 | 49.00 | 3.12 |
| 40 | 54.50 | 12.75 | 11.00 | 40.00 | 40 | 3.25 | 51.50 | 3.38 |
| 42 | 57.00 | 13.25 | 11.25 | 42.00 | 44 | 3.25 | 54.00 | 3.38 |
| 44 | 59.50 | 13.75 | 11.50 | 44.00 | 44 | 3.50 | 56.50 | 3.62 |
| 46 | 62.00 | 14.25 | 11.75 | 46.00 | 48 | 3.50 | 59.00 | 3.62 |
| 48 | 64.50 | 14.75 | 12.00 | 48.00 | 48 | 3.75 | 61.50 | 3.88 |
| 50 | 67.00 | 15.25 | 12.25 | 50.00 | 52 | 3.75 | 64.00 | 3.88 |
| 52 | 69.50 | 15.75 | 12.50 | 52.00 | 52 | 4.00 | 66.50 | 4.12 |
| 54 | 72.00 | 16.25 | 12.75 | 54.00 | 56 | 4.00 | 69.00 | 4.12 |
| 56 | 74.50 | 16.75 | 13.00 | 56.00 | 56 | 4.25 | 71.50 | 4.38 |
| 58 | 77.00 | 17.25 | 13.25 | 58.00 | 60 | 4.25 | 74.00 | 4.38 |
| 60 | 79.50 | 17.75 | 13.50 | 60.00 | 60 | 4.50 | 76.50 | 4.62 |
Note: These dimensions are illustrative for ASME B16.47 Series A (MSS SP-44) Class 900 flanges. The standard specifies dimensions for various pipe schedules. Always refer to the latest edition of ASME B16.47 for official and complete specifications, including specific hub details, raised face dimensions, gasket contact surfaces (often RF or RTJ), and pressure-temperature ratings. The 'Bore of Flange' shown is nominal and may vary with the actual pipe schedule used for socket welding.
ASME B16.47 Series B (API 605) Socket Weld Flanges Class 900 Dimensions (NPS 26" - 60")
This section provides illustrative dimensions for Class 900 Socket Weld Flanges as per ASME B16.47 Series B (also known as API 605). This series generally has a smaller outside diameter and bolt circle diameter than Series A, often resulting in slightly thicker flanges for equivalent pressure ratings.
| NPS | OD of Flange (in) | Thickness of Flange (Min) (in) | Length Thru Hub (in) | Bore of Flange (in) | No. of Bolts | Dia. of Bolts (in) | Bolt Circle Dia. (in) | Dia. of Bolt Holes (in) |
|---|---|---|---|---|---|---|---|---|
| 26 | 36.00 | 9.50 | 9.00 | 26.00 | 24 | 2.50 | 32.00 | 2.62 |
| 28 | 38.00 | 10.00 | 9.25 | 28.00 | 28 | 2.50 | 34.50 | 2.62 |
| 30 | 40.50 | 10.50 | 9.50 | 30.00 | 28 | 2.75 | 37.00 | 2.88 |
| 32 | 43.00 | 11.00 | 9.75 | 32.00 | 28 | 3.00 | 39.50 | 3.12 |
| 34 | 45.50 | 11.50 | 10.00 | 34.00 | 32 | 3.00 | 42.00 | 3.12 |
| 36 | 48.00 | 12.00 | 10.25 | 36.00 | 32 | 3.25 | 44.50 | 3.38 |
| 38 | 50.50 | 12.50 | 10.50 | 38.00 | 36 | 3.25 | 47.00 | 3.38 |
| 40 | 53.00 | 13.00 | 10.75 | 40.00 | 36 | 3.50 | 49.50 | 3.62 |
| 42 | 55.50 | 13.50 | 11.00 | 42.00 | 40 | 3.50 | 52.00 | 3.62 |
| 44 | 58.00 | 14.00 | 11.25 | 44.00 | 40 | 3.75 | 54.50 | 3.88 |
| 46 | 60.50 | 14.50 | 11.50 | 46.00 | 44 | 3.75 | 57.00 | 3.88 |
| 48 | 63.00 | 15.00 | 11.75 | 48.00 | 44 | 4.00 | 59.50 | 4.12 |
| 50 | 65.50 | 15.50 | 12.00 | 50.00 | 48 | 4.00 | 62.00 | 4.12 |
| 52 | 68.00 | 16.00 | 12.25 | 52.00 | 48 | 4.25 | 64.50 | 4.38 |
| 54 | 70.50 | 16.50 | 12.50 | 54.00 | 52 | 4.25 | 67.00 | 4.38 |
| 56 | 73.00 | 17.00 | 12.75 | 56.00 | 52 | 4.50 | 69.50 | 4.62 |
| 58 | 75.50 | 17.50 | 13.00 | 58.00 | 56 | 4.50 | 72.00 | 4.62 |
| 60 | 78.00 | 18.00 | 13.25 | 60.00 | 56 | 4.75 | 74.50 | 4.88 |
Note: These dimensions are illustrative for ASME B16.47 Series B (API 605) Class 900 flanges. This series typically uses fewer, larger bolts and has a smaller bolt circle diameter compared to Series A. Always refer to the latest edition of ASME B16.47 for official and complete specifications, including specific hub details, raised face dimensions, gasket contact surfaces (often RF or RTJ), and pressure-temperature ratings. The 'Bore of Flange' shown is nominal and may vary with the actual pipe schedule used for socket welding.
Technical Specifications: Dipti Metal Industries' Socket Weld Flanges Class 900
Our Socket Weld Flanges Class 900 are manufactured to stringent technical specifications, ensuring precise dimensions, reliable performance, and compliance with global industry standards for high-pressure pipeline connections.
| Parameter | Typical Range / Standard |
|---|---|
| Flange Type | Socket Weld (SW) |
| Pressure Class | ASME Class 900 |
| Face Types | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF - on request) |
| Material Grades | Carbon Steel (ASTM A105, A350 LF2, EN P250GH), Stainless Steel (ASTM A182 F304/L, F316/L, F310, F321, EN 1.4301/1.4401), Alloy Steel (ASTM A182 F5, F9, F11, F22, F91, EN 10CrMo9-10), Duplex (F51, F53), Super Duplex (F55) |
| Dimensional Specifications | |
| Nominal Pipe Size (NPS) | 1/2" to 24" (ASME B16.5), up to 60" (ASME B16.47 Series A & B) |
| Outer Diameter (OD) | As per ASME B16.5 / B16.47 standards |
| Inner Diameter (ID) / Bore | Matches pipe schedule, as per ASME B16.5 / B16.47 |
| Thickness (Flange) | As per ASME B16.5 / B16.47 standards |
| Length Through Hub (LTH) | As per ASME B16.5 / B16.47 standards |
| Bolt Circle Diameter (BCD) | As per ASME B16.5 / B16.47 standards |
| Number of Bolt Holes | As per ASME B16.5 / B16.47 standards |
| Bolt Hole Diameter | As per ASME B16.5 / B16.47 standards |
| Manufacturing & Testing | |
| Manufacturing Process | Forged (typically ring rolled or flat die forged) |
| Heat Treatment | As per ASTM / ASME material specifications |
| Surface Finish | Typically Stock Finish (for RF), smooth finish on gasket faces for RTJ |
| Marking | Manufacturer name, material grade, pressure class, size, standard, heat number |
| Testing & Inspection | Chemical Analysis, Mechanical Properties (Tensile, Yield, Elongation), Hardness Test, Impact Test (if required for low-temp), Dimensional Inspection, PMI (Positive Material Identification), Hydrostatic Test (on finished assembly), NDT (UT, RT, MP, LP - if required) |
| Certifications & Documentation | EN 10204 Type 3.1 MTC (Material Test Certificate), ISO 9001, PED 2014/68/EU, NACE MR0175/ISO 15156 compliant materials available |
Dipti Metal Industries ensures that all Socket Weld Flanges Class 900 meet these stringent specifications, providing comprehensive technical data and certification for every order to guarantee reliability and performance in critical high-pressure and high-temperature applications.
Key Worldwide Standards for Socket Weld Flanges Class 900
Socket Weld Flanges Class 900 are crucial components in high-pressure piping systems, and their dimensions, materials, and performance are governed by various international and national standards. Adherence to these standards ensures interchangeability, proper fit, and reliable operation. Dipti Metal Industries manufactures and supplies Socket Weld Flanges Class 900 conforming to major global standards:
These standards are predominant in North America and widely adopted globally for various industrial applications, especially in oil & gas and petrochemical sectors.
- ASME B16.5: Pipe Flanges and Flanged Fittings (Sizes NPS 1/2 through NPS 24). This is the primary standard for Socket Weld Flanges Class 900.
- ASME B16.47 Series A & B: Large Diameter Steel Flanges (NPS 26 through NPS 60). Used for larger sizes of Class 900 flanges.
- MSS SP-44: Steel Flanges (Sizes NPS 16 through NPS 60). An older standard now largely superseded by ASME B16.47 but still referenced.
- API 605: Large Diameter Carbon Steel Flanges (Covers dimensions for certain large diameter flanges, now often integrated with ASME B16.47).
- ASTM A105: Standard Specification for Forging, Carbon Steel, for Piping Components (Common material for carbon steel flanges).
- ASTM A350 LF2: Standard Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components (For low-temperature carbon steel flanges).
- ASTM A182: Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service (Covers various alloy and stainless steel grades).
- NACE MR0175 / ISO 15156: Material requirements for H2S-containing environments in oil and gas production (Crucial for sour service applications).
European standards are extensively used across Europe and in many other regions for industrial piping components.
- EN 1092-1: Flanges and their joints – Circular flanges for pipes, valves, fittings and accessories, PN designated – Part 1: Steel flanges (Covers various PN (Pressure Nominal) ratings which correlate to ASME Classes).
- DIN EN 1092-1: German national adoption of EN 1092-1.
- PED 2014/68/EU: Pressure Equipment Directive (Mandatory for pressure equipment within the EU, including flanges).
British Standards are still referenced in many Commonwealth countries and for specific applications, though many are harmonized with EN or ISO.
- BS 1560: Circular flanges for pipes, valves and fittings (Nominal sizes 1/2 in to 24 in and nominal pressures up to 2500 lbf/in² (equivalent to ASME Classes)).
- BS 3293: Carbon steel flanges (Nominal sizes 26 in to 48 in) for the petroleum industry (Harmonized with API 605/ASME B16.47).
JIS standards are widely used in Japan and by companies manufacturing for the Japanese market.
- JIS B2220: Steel pipe flanges (Covers various pressure ratings, including 63K, which can sometimes be comparable to higher ASME classes, but direct equivalence for Class 900 needs careful cross-referencing).
- IS 6392 (India): Steel pipe flanges (Often aligns with international standards like ASME/DIN).
- GOST 12820 / 12821 (Russia): Steel flat / welding neck flanges (Covers various pressure ratings in MPa).
- AS 2129 (Australia): Flanges for pipes, valves, and fittings (Historically referenced, now often defers to ASME/EN).
Industries & Applications for Dipti Metal Industries' Socket Weld Flanges Class 900
Dipti Metal Industries' high-quality Socket Weld Flanges Class 900 are critical components across a vast range of high-pressure industries, providing secure and leak-proof connections that enhance the safety and operational integrity of piping systems. Our robust solutions are trusted in demanding environments worldwide.
- Oil & Gas Exploration & Production: Essential for upstream, midstream, and downstream applications, including wellhead piping, manifold systems, crude oil and natural gas pipelines, refineries, and processing plants where high pressures and hydrocarbon containment are critical.
- Petrochemical & Chemical Processing: Used in reactors, heat exchangers, distillation columns, and various high-pressure chemical transport lines where corrosive media, high temperatures, and stringent leak prevention are paramount.
- Power Generation: Utilized in steam lines, feedwater systems, and other high-pressure fluid transfer applications within thermal, nuclear, and combined-cycle power plants.
- Marine & Offshore Industries: Crucial for shipbuilding, offshore platforms, FPSOs (Floating Production, Storage, and Offloading units), and subsea systems, where flanges must withstand extreme pressures, harsh marine environments, and dynamic loads.
- Pulp & Paper Industry: For high-pressure process lines handling various chemicals and slurries in the manufacturing process.
- Water Treatment & Desalination: In high-pressure pumping and distribution systems, especially for industrial-scale water processing.
- Mining & Mineral Processing: For slurry lines and process piping where abrasive materials and high pressures are common.
- HVAC & Refrigeration (Industrial Scale): In large industrial chilling and heating systems that operate at elevated pressures.
The exceptional high-pressure resistance, superior leak integrity, and robust reliability of Dipti Metal Industries' Socket Weld Flanges Class 900 make them the preferred choice for ensuring the safety, efficiency, and longevity of critical pipeline connections across these diverse and demanding global sectors.
Socket Weld Flanges Class 900 Export Countries & Cities We Manufacture & Supply From India To
Dipti Metal Industries is a proud Worldwide Manufacturer, Exporter, Global Supplier, Leading Dealer, and Biggest Stockist of Socket Weld Flanges Class 900, with an extensive network. We ensure timely and compliant delivery of our premium products, manufactured in our facilities, to major industrial hubs across the globe, with a strong focus on critical industrial regions worldwide, solidifying our position as a top international manufacturing and trading partner.
Explore Our Global Reach
- Austria: Vienna, Salzburg
- Belgium: Antwerp, Brussels, Ghent
- Bulgaria: Sofia, Plovdiv
- Croatia: Zagreb, Split
- Czech Republic: Prague, Brno
- Denmark: Copenhagen, Aarhus
- Estonia: Tallinn, Tartu
- Finland: Helsinki, Tampere
- France: Paris, Marseille, Lyon (Key for Petrochemical & Power)
- Germany: Frankfurt, Hamburg, Munich, Düsseldorf (Primary for Chemical, Power & Industrial Machinery)
- Greece: Athens, Thessaloniki
- Hungary: Budapest, Debrecen
- Ireland: Dublin, Cork
- Italy: Milan, Rome, Genoa
- Latvia: Riga, Daugavpils
- Lithuania: Vilnius, Kaunas
- Luxembourg: Luxembourg City
- Netherlands: Rotterdam, Amsterdam, The Hague (Key for Oil & Gas, Petrochemical)
- Norway: Oslo, Bergen (Key for Offshore Oil & Gas)
- Poland: Warsaw, Krakow
- Portugal: Lisbon, Porto
- Romania: Bucharest, Cluj-Napoca
- Russia: Moscow, Saint Petersburg, Kazan (Key for Oil & Gas, Power)
- Serbia: Belgrade, Novi Sad
- Slovakia: Bratislava, Košice
- Slovenia: Ljubljana, Maribor
- Spain: Madrid, Barcelona, Valencia
- Sweden: Stockholm, Gothenburg
- Switzerland: Zurich, Geneva, Basel
- Ukraine: Kyiv, Kharkiv, Odesa
- United Kingdom: London, Manchester, Glasgow (Key for North Sea Oil & Gas, Power)
- Afghanistan: Kabul, Kandahar
- Bahrain: Manama, Sitra (Key for Oil & Gas)
- Bangladesh: Dhaka, Chittagong
- Brunei: Bandar Seri Begawan (Key for Oil & Gas)
- China: Shanghai, Guangzhou, Tianjin, Shenzhen (Key for Petrochemical & Power Generation)
- Hong Kong: Hong Kong City
- India: Mumbai, Delhi, Chennai, Kolkata, Bangalore, Hyderabad (Local Markets - Major Industrial Demand)
- Indonesia: Jakarta, Surabaya, Balikpapan (Key for Oil & Gas, Petrochemical)
- Iran: Tehran, Mashhad (Key for Oil & Gas)
- Iraq: Baghdad, Basra (Key for Oil & Gas)
- Japan: Tokyo, Osaka, Nagoya (Primary for Petrochemical & Power Generation)
- Jordan: Amman, Irbid
- Kazakhstan: Nur-Sultan, Almaty (Key for Oil & Gas)
- Kuwait: Kuwait City, Ahmadi (Key for Oil & Gas)
- Laos: Vientiane, Luang Prabang
- Lebanon: Beirut, Tripoli
- Malaysia: Kuala Lumpur, Johor Bahru, Port Klang (Key for Oil & Gas, Petrochemical)
- Myanmar: Yangon, Mandalay
- Nepal: Kathmandu, Biratnagar
- Oman: Muscat, Sohar, Salalah (Key for Oil & Gas)
- Philippines: Manila, Cebu
- Qatar: Doha, Ras Laffan (Key for Oil & Gas, LNG)
- Saudi Arabia: Riyadh, Jeddah, Dammam, Al Khobar, Jubail (Primary for Oil & Gas, Petrochemical)
- Singapore: Singapore City (Key for Marine, Oil & Gas Logistics)
- South Korea: Seoul, Busan, Ulsan (Primary for Shipbuilding, Petrochemical)
- Sri Lanka: Colombo, Kandy
- Syria: Damascus, Aleppo
- Taiwan: Taipei, Kaohsiung (Key for Petrochemical)
- Thailand: Bangkok, Rayong, Laem Chabang (Key for Petrochemical)
- UAE: Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah (Primary for Oil & Gas, Petrochemical)
- Uzbekistan: Tashkent, Samarkand
- Vietnam: Ho Chi Minh City, Hanoi, Da Nang (Key for Oil & Gas)
- Yemen: Sana'a, Aden
- Canada: Calgary, Edmonton, Vancouver, Toronto, Montreal (Key for Oil & Gas, Mining)
- Mexico: Mexico City, Monterrey, Guadalajara (Key for Oil & Gas, Petrochemical)
- Panama: Panama City, Colón
- USA: Houston, Los Angeles, New York, Chicago, New Orleans (Primary Market for Oil & Gas, Petrochemical, Power Generation)
- Argentina: Buenos Aires, Cordoba
- Bolivia: La Paz, Santa Cruz (Key for Oil & Gas)
- Brazil: São Paulo, Rio de Janeiro, Salvador (Key for Oil & Gas, Petrochemical)
- Chile: Santiago, Valparaíso
- Colombia: Bogota, Medellin (Key for Oil & Gas)
- Ecuador: Quito, Guayaquil
- Peru: Lima, Arequipa (Key for Mining, Oil & Gas)
- Uruguay: Montevideo
- Venezuela: Caracas, Maracaibo (Key for Oil & Gas)
- Algeria: Algiers, Oran (Key for Oil & Gas)
- Angola: Luanda, Huambo (Key for Oil & Gas)
- Egypt: Cairo, Alexandria, Port Said (Key for Oil & Gas, Petrochemical)
- Ghana: Accra, Kumasi
- Kenya: Nairobi, Mombasa
- Libya: Tripoli, Benghazi (Key for Oil & Gas)
- Morocco: Casablanca, Rabat
- Mozambique: Maputo, Beira (Key for Oil & Gas)
- Nigeria: Lagos, Port Harcourt, Abuja (Primary for Oil & Gas)
- Rwanda: Kigali, Rubavu
- South Africa: Johannesburg, Durban, Cape Town, Sasolburg (Key for Mining, Petrochemical)
- Tanzania: Dar es Salaam, Mwanza
- Tunisia: Tunis, Sfax
- Uganda: Kampala, Gulu
- Australia: Sydney, Melbourne, Perth, Brisbane (Key for Mining, Oil & Gas)
- Fiji: Suva, Nadi
- New Zealand: Auckland, Wellington, Christchurch
- Papua New Guinea: Port Moresby, Lae (Key for Mining, Oil & Gas)
Why Choose Dipti Metal Industries for Your Socket Weld Flanges Class 900?
- Leading Global Manufacturer & Specialized Expertise: As a premier manufacturer and worldwide exporter from Mumbai, we specialize in high-quality Socket Weld Flanges Class 900, offering deep expertise in producing critical high-pressure components for secure, leak-proof piping systems across diverse industrial applications globally.
- Uncompromising Quality & Certifications: Our SW flanges are manufactured under strict ISO 9001 certified processes and comply with stringent international standards including ASME B16.5, ASME B16.47 Series A & B, MSS SP-44, API 605, DIN, EN, BS, and JIS. Each product undergoes rigorous chemical analysis, mechanical property testing (tensile, yield, impact), hardness tests, and comprehensive dimensional inspections. For critical applications, we offer PMI, hydrostatic testing, and NDT (UT, RT, MP, LP). They are supplied with full Mill Test Certificates (MTCs) conforming to EN 10204 Type 3.1, guaranteeing superior functional integrity and full traceability for critical applications. PED compliance is also available.
- Precision Forging & Diverse International Material Grades: We utilize advanced forging techniques to produce Class 900 SW flanges from a wide range of high-grade materials including Carbon Steel (ASTM A105, A350 LF2, EN P250GH), Stainless Steel (304, 316, 310, 321, EN 1.4301/1.4401), Alloy Steel (F5, F9, F11, F22, F91, EN 10CrMo9-10), Duplex (F51, F53), and Super Duplex (F55), ensuring optimal strength, corrosion resistance, and material compatibility for your specific high-pressure and high-temperature requirements. NACE MR0175 compliant materials are readily available.
- Comprehensive Product Range & Face Types: We offer a full spectrum of Socket Weld Flanges Class 900 in a wide range of Nominal Pipe Sizes (NPS 1/2" to 60"), catering to both ASME B16.5 and B16.47 Series A & B standards. We provide common face types such as Raised Face (RF) and Ring Type Joint (RTJ), ensuring we can meet nearly any project's sealing and connection demands.
- Customization & Technical Support: We offer extensive customization for dimensions, material grades, face types, and specific testing requirements. Our experienced technical team provides expert consultation on material selection, pressure-temperature ratings, application suitability, and compliance requirements (including NACE and PED), ensuring you receive the optimal flange solution that perfectly balances performance, durability, and cost-effectiveness.
- Global Export & Efficient Logistics: As a dedicated worldwide exporter, Dipti Metal Industries guarantees efficient and reliable global delivery. We ensure secure, robust packaging and comprehensive documentation, facilitating smooth customs clearance and timely project completion across all continents, supporting critical oil & gas, petrochemical, and power generation projects.
- Competitive Pricing & Superior Value: Leveraging our optimized manufacturing processes, strategic sourcing, and large-scale production capabilities, we consistently deliver high-quality Socket Weld Flanges Class 900 at competitive prices. Our products offer exceptional long-term value through enhanced safety, superior joint integrity, and improved overall project cost-effectiveness in demanding industrial environments.
Get a Quote Today for Your Socket Weld Flanges Class 900 Requirements!
Are you in search of reliable, high-quality Socket Weld Flanges Class 900 for secure, leak-proof, high-pressure pipeline connections in your oil & gas, petrochemical, power generation, or marine applications? Contact Dipti Metal Industries, your expert leading global manufacturer, stockist, supplier, dealer, distributor, and worldwide exporter of Socket Weld Flanges Class 900 from Mumbai, India, today. Our dedicated team is ready to discuss your specific Nominal Pipe Size (NPS), face type (e.g., Raised Face, RTJ), material (e.g., Carbon Steel A105, Stainless Steel 316L, Alloy Steel F22, Duplex F51), quantity, and any applicable standards (ASME B16.5, ASME B16.47, NACE, PED). Request a personalized, custom quote to secure the most effective and dependable Class 900 Socket Weld Flange solutions that guarantee enhanced operational integrity and prolonged system life in diverse industrial environments.
Price guidance (non-binding): USD 10.00–5000.00 per piece depending on size, material, face type, quantity, and required certifications. Final prices are quotation-based.
Socket Weld Flanges Class 900 — Frequently Asked Questions
Socket Weld (SW) Flanges Class 900 are forged pipe flanges designed for high-pressure applications. The pipe is inserted into a recessed area (the 'socket') of the flange and then secured with a single fillet weld on the outside of the flange hub. This design creates a very strong, leak-proof connection that is particularly suitable for small-bore piping systems (typically NPS 1/2" to 2") handling high pressures, high temperatures, or dangerous fluids where maximum integrity is required. The Class 900 designation refers to its pressure rating as per ASME B16.5, indicating its capability to withstand significant operational pressures. Dipti Metal Industries manufactures and supplies these flanges globally, ensuring they meet stringent international standards for critical industrial use.
The key benefits of using Socket Weld Flanges Class 900 from Dipti Metal Industries include:
- High Pressure Rating: Specifically designed for Class 900 service, making them ideal for very demanding high-pressure pipelines.
- Excellent Leak Integrity: The socket design with a fillet weld provides a robust, permanent, and inherently leak-resistant joint, crucial for hazardous media.
- High Mechanical Strength: Offers superior strength and fatigue resistance compared to threaded or slip-on flanges, vital for dynamic or vibrating systems.
- Suitable for Small Diameters: A preferred choice for smaller pipe sizes (typically 1/2" to 2") where high integrity is required, and butt welding is impractical.
- No Pipe Beveling Required: Simplifies pipe preparation, reducing fabrication time and costs.
- Internal Smoothness: With proper welding, the internal bore can remain smooth, minimizing turbulence and pressure drop.
Dipti Metal Industries offers Class 900 Socket Weld Flanges in a wide array of materials to suit diverse industrial conditions:
- Carbon Steel: ASTM A105 (for high-temperature service) and ASTM A350 LF2 (for low-temperature applications). We also supply to EN standards like P250GH.
- Stainless Steel: ASTM A182 F304/304L and F316/316L for excellent corrosion resistance, especially in chemical and marine environments. Other grades like F310, F321, F347 are also available for specialized high-temperature resistance. European equivalents include 1.4301 and 1.4401.
- Alloy Steel: ASTM A182 F5, F9, F11, F22, F91, chosen for enhanced strength and creep resistance at elevated temperatures, critical in power generation and petrochemical industries. EN standards such as 16Mo3 and 10CrMo9-10 are also available.
- Duplex & Super Duplex Stainless Steel: ASTM A182 F51 (2205) and F53/F55 (2507) for exceptional strength and superior resistance to pitting and stress corrosion cracking in aggressive environments.
- Raised Face (RF): The standard choice, concentrating gasket pressure for an effective seal.
- Ring Type Joint (RTJ): Used for high-pressure and high-temperature services, employing a metallic ring gasket in a machined groove for a robust, metal-to-metal seal.
Socket Weld Flanges Class 900 are crucial fasteners used across industries where high pressure, high temperature, and leak-proof connections are essential:
- Oil & Gas Industry: Widely employed in upstream (drilling, wellheads), midstream (pipelines, compressor stations), and downstream (refineries, petrochemical plants) for process piping, manifold systems, and utility lines handling hydrocarbons.
- Petrochemical & Chemical Processing Plants: Essential for connecting piping in reactors, heat exchangers, distillation columns, and process units that handle corrosive or hazardous chemicals at high pressures and temperatures.
- Power Generation: Used in thermal power plants (coal, gas, nuclear) for high-pressure steam lines, boiler feedwater systems, and other critical process piping.
- Marine & Offshore: Crucial for piping systems on offshore platforms, FPSOs, and in shipbuilding, particularly for hydraulic and instrumentation lines subjected to harsh conditions and high pressures.
- Pulp & Paper: In process lines where chemicals and slurries are transported under significant pressure.
- Industrial Refrigeration: For systems operating with high-pressure refrigerants.
Our Socket Weld Flanges Class 900 are manufactured in strict accordance with major international standards to ensure quality, safety, and interchangeability:
- ASME B16.5: The primary standard for pipe flanges and flanged fittings up to NPS 24, which governs the dimensions, materials, pressure-temperature ratings, and testing of Class 900 SW flanges.
- ASME B16.47 Series A & B: For large diameter steel flanges (NPS 26 through NPS 60) that include Class 900 ratings.
- ASTM Standards: Specific material standards such as ASTM A105 (carbon steel), ASTM A350 LF2 (low-temperature carbon steel), and ASTM A182 (alloy and stainless steels) ensure the mechanical and chemical properties of the forged materials.
- MSS SP-44: An older standard for steel flanges, largely superseded by ASME B16.47 but still sometimes referenced.
- API 605: Covers large diameter carbon steel flanges, often cross-referenced with ASME B16.47.
- DIN / EN Standards: For projects requiring European specifications, we adhere to standards like EN 1092-1, which provides dimensions and pressure ratings (PN) that can be correlated to ASME classes.
- NACE MR0175 / ISO 15156: For materials used in sour service environments in the oil and gas industry, ensuring resistance to sulfide stress cracking.
What Our Customers Say About Our Socket Weld Flanges Class 900
“Dipti Metal's Class 900 Socket Weld Flanges are indispensable for our high-pressure oil and gas pipelines. Their precision manufacturing and consistent material quality ensure leak-free, durable connections, even in the most demanding desert conditions. Excellent compliance with ASME standards.”
— Pipeline Project Manager – Lead Engineer, Saudi Aramco, Dhahran, Saudi Arabia
“We rely on Dipti Metal for our alloy steel Class 900 SW flanges in our chemical processing units. The critical pressure resistance and robust construction are paramount. Their certification and rapid delivery for critical spares are outstanding.”
— Petrochemical Plant Engineer – Maintenance Supervisor, BASF SE, Ludwigshafen, Germany
“The stainless steel Class 900 Socket Weld Flanges from Dipti Metal have consistently met our stringent requirements for high-temperature and high-pressure steam lines. Their adherence to international standards and reliable performance is why they are our preferred supplier.”
— Power Generation Lead – Procurement Specialist, Siemens Energy, Munich, Germany
“For offshore platforms, our Class 900 SW flanges need to withstand extreme corrosive environments and high pressures. Dipti Metal's duplex stainless steel flanges deliver on all fronts, providing exceptional durability and leak integrity for critical systems.”
— Marine & Offshore Fabricator – Project Manager, Keppel Offshore & Marine, Singapore
“Dipti Metal Industries offers a comprehensive range of Class 900 Socket Weld Flanges that are essential for many of our complex industrial projects. Their technical support and ability to customize for specific needs are highly valued.”
— Piping Solutions Provider – Technical Director, Worley Limited, Sydney, Australia
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