DIPTI METAL INDUSTRIES
Leading ASTM A815 Pipe Fittings Manufacturer, Supplier & Exporter in Mumbai, India
Dipti Metal Industries (A KMR Group Company) is the premier global ASTM A815 Manufacturer and ASTM A815 Stockist of Duplex and Super Duplex Stainless Steel buttweld fittings. Under our trusted Dipti® brand, we supply high-integrity WP-S (Seamless) and WP-W (Welded) fittings for mission-critical offshore, desalination, and chemical projects. ASTM A815 covers ferritic, ferritic/austenitic (duplex), and martensitic grades, primarily utilized where extreme yield strength and chloride-induced corrosion resistance are mandatory. Our materials are supplied from our Mumbai, India hub with original mill certification and third-party inspection compliance.
Explore Related Pipe Fitting Standards
ASTM A815 (Duplex) ASTM A403 (Stainless Steel) ASTM A234 (Carbon Steel) ASTM A420 (Low-Temp)🏭 Industrial Authority in Corrosion-Resistant Piping Solutions
As a key ASTM A815 Supplier in Mumbai, Dipti Metal Industries provides high-performance Duplex (2205) and Super Duplex (2507) fittings for the global energy sector. ASTM A815 fittings are valued for their balanced austenite-ferrite microstructure, offering twice the strength of standard austenitic stainless steels and exceptional resistance to local corrosion (pitting and crevice) in marine environments.
Engineering Compliance
- Dimensional Std: ASME B16.9, ASME B16.11, MSS SP-43
- Construction: Seamless (WP-S), Welded (WP-W/WX), UT (WP-WU)
- Testing: 100% Radiography, PMI, and Hydrostatic testing
- Compliance: PED 2014/68/EU, CE, IBR, NACE MR0175
The Dipti Metal Advantage
- Widest inventory of Super Duplex S32750 Fittings in Mumbai
- Custom fabrication: Piggable bends and long-radius 5D bends
- Global export logistics to GCC, USA, Europe, and Asia hubs
- Third-party inspection by TUV, BV, LR, SGS, and DNV
📘 ASTM A815 Standard at a Glance
ASTM A815/A815M covers wrought ferritic, ferritic/austenitic, and martensitic stainless steel fittings. These are sub-divided based on construction and testing methods.
Class Designations
| Class | Description |
|---|---|
| WP-S | Seamless manufacture and seamless product. |
| WP-W | Contains welds; fabrication welds RT or UT. |
| WP-WX | All welds (starting & fabrication) Radiographed. |
| WP-WU | All welds (starting & fabrication) Ultrasonic tested. |
| CR | Lightweight fittings per MSS SP-43 practice. |
Grade mapping (UNS)
| ASTM Grade | UNS Number | Common Name |
|---|---|---|
| WPS31803 | S31803 | Duplex 2205 (Base) |
| WPS32205 | S32205 | Duplex 2205 (Enhanced) |
| WPS32750 | S32750 | Super Duplex 2507 |
| WPS32760 | S32760 | Super Duplex (Z100) |
| WP410 | S41000 | Martensitic Type 410 |
📊 Technical Reference: Processing & Mechanical Strength
| Family (UNS) | Solution Anneal | Cooling | Yield (min) | UTS (min) | HBW (max) |
|---|---|---|---|---|---|
| Duplex S31803 | 1020–1100 °C | Water Quench | ≥ 450 MPa | ≥ 620 MPa | ≤ 290 |
| Super Duplex S32750 | 1025–1140 °C | Water Quench | ≥ 550 MPa | ≥ 795 MPa | ≤ 310 |
| Ferritic S43000 | ≥ 650 °C | Air/Rapid Cool | ~240 MPa | ~450 MPa | ≤ 190 |
| Martensitic S41500 | High Temp Sol. | Air Cool | ≥ 620 MPa | ≥ 760 MPa | ≤ 295 |
Typical values summarized for selection. Refer to the official ASTM A815/A815M standard for exact numeric limits.
ASTM A815 Product Range & Formats
- Elbows: 90°/45° LR/SR, 180° Return Bends
- Tees: Equal, Reducing, Barred Tees
- Reducers: Concentric & Eccentric
- Caps: Pipe End Caps, Domed Caps
- Stub Ends: Long & Short Patterns
- Laterals & Crosses: 45°/90° Equal/Reducing
- Induction Bending: 3D, 5D, 10D Radius
- Surface Treatments: Pickling, Passivation, Sandblasting
- Custom Machining: Specialized beveling and transitions
- Testing: HIC, SSC, G48 Corrosion, Radiography
Prime Applications of ASTM A815 (Duplex)
- Oil & Gas: Subsea piping, risers, and sour gas manifolds.
- Desalination: High-pressure RO piping and seawater systems.
- Chemical: Production equipment for organic & inorganic acids.
- Marine: Propeller shafts and hull components (Ferritic/Austenitic).
- Power Generation: Flue gas desulfurization (FGD) systems.
Global Export Reach for ASTM A815 Fittings (75+ Countries)
As a specialized ASTM A815 Exporter, we provide door-to-port delivery for high-integrity Duplex fittings worldwide.
- UAE: Dubai, Abu Dhabi, Jebel Ali
- Saudi Arabia: Riyadh, Dammam, Jubail
- Oman, Qatar, Kuwait, Bahrain
- USA: Houston, New Orleans, Seattle
- Europe: UK, Germany, Netherlands, Italy
- Asia: Singapore, Malaysia, South Korea
- Africa: Nigeria, Egypt, South Africa
Inquire for ASTM A815 Pipe Fittings
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📍 Contact Dipti Metal Industries
Dipti Metal Industries (KMR Group)
No.9, Shreepati Castle, D-1, 10–11th Khetwadi Back Road, Mumbai – 400004, India
Sales: +91-22-66381301
WhatsApp: +91-9975266499
Email: info@diptimetal.com