DIPTI METAL INDUSTRIES
Leading ASTM A420 Pipe Fittings Manufacturer, Stockist & Exporter in Mumbai, India
Dipti Metal Industries (A KMR Group Company) is the premier global ASTM A420 Manufacturer and ASTM A420 Stockist of low-temperature buttweld pipe fittings. Under our trusted Dipti® brand, we supply high-integrity WP-S (Seamless) and WP-W (Welded) fittings in grades WPL6, WPL3, and WPL8. ASTM A420 specifies wrought fittings for piping systems operating at low temperatures. Widely utilized in cryogenic storage, arctic exploration, and refrigeration systems, our materials are supplied from Mumbai, India with full EN 10204 3.1 certification and Charpy V-Notch impact test compliance.
Explore Related Pipe Fitting Standards
ASTM A420 (Low-Temp) ASTM A234 (Carbon & Alloy) ASTM A403 (Stainless Steel) ASTM A815 (Duplex)🏭 Industrial Authority in Low-Temp Impact-Resistant Fittings
As a specialized ASTM A420 Supplier in Mumbai, Dipti Metal Industries provides mission-critical piping solutions for sub-zero environments. Unlike standard carbon steel, ASTM A420 fittings are subjected to mandatory impact testing to ensure they remain ductile and do not undergo brittle fracture at low temperatures. WPL6 is the most common grade, impact tested down to -50°F (-45°C), making it the standard for petrochemical and gas processing plants in cold climates.
Engineering Compliance
- Dimensional Standards: ASME B16.9, MSS SP-75, ASME B36.10M
- Testing: 100% Charpy V-Notch Impact Testing
- Construction Classes: WP-S (Seamless), WP-W (Welded)
- NDE: Radiography for Welded fittings (WP-WX class)
- Compliance: NACE MR0175 / ISO 15156 for Sour Gas service
The Dipti Metal Advantage
- Widest inventory of WPL6 and WPL3 Fittings in Mumbai
- Custom Bends: 3D, 5D, 10D hot induction bending shims
- Protective Coating: Coal Tar, Epoxy, or Zinc Galvanized
- Third-party inspection ready: SGS, LR, BV, TUV
🧪 ASTM A420 Technical Data: Chemistry & Impact Specs
Summary of requirements for Low-Temperature Carbon Steel (LTCS) grades.
| Grade | UNS | C % | Mn % | Si % | Ni % | Min. Impact Temp | Charpy Energy (min) |
|---|---|---|---|---|---|---|---|
| WPL6 | K03006 | 0.30 max | 0.50–1.35 | 0.15–0.40 | 0.40 max | -50°F (-45°C) | 13 to 18 ft-lbf |
| WPL3 | K31918 | 0.20 max | 0.31–0.64 | 0.13–0.37 | 3.20–3.80 | -150°F (-101°C) | 13 to 15 ft-lbf |
| WPL8 | K81340 | 0.13 max | 0.90 max | 0.13–0.37 | 8.40–9.60 | -320°F (-195°C) | 15 to 20 ft-lbf |
| WPL9 | K41583 | 0.20 max | 0.40–1.06 | — | 1.75–2.25 | -100°F (-73°C) | 13 to 15 ft-lbf |
📊 Mechanical Properties: ASTM A420 Grades
| Grade | Tensile Strength (min) | Yield Strength (min) | Elongation (min) | Hardness (max) |
|---|---|---|---|---|
| WPL6 | 415 MPa (60 ksi) | 240 MPa (35 ksi) | 30% | 197 HBW |
| WPL3 | 450 MPa (65 ksi) | 240 MPa (35 ksi) | 30% | 197 HBW |
| WPL8 | 690 MPa (100 ksi) | 515 MPa (75 ksi) | 22% | 248 HBW |
ASTM A420 Product Range & Construciton
- ASTM A420 90° and 45° Elbows (LR/SR)
- ASTM A420 180° Return Bends
- ASTM A420 Equal & Reducing Tees
- ASTM A420 Concentric & Eccentric Reducers
- ASTM A420 End Caps & Domed Caps
- ASTM A420 Stub Ends (Short/Long Pattern)
- ASTM A420 Laterals & Crosses
- Custom Low-Temp Induction Bends (5D/10D)
- Normalizing Heat Treatment: Mandatory for low-temp toughness shims.
- Protective Coating: Fusion Bonded Epoxy (FBE), Cold Galvanizing, Rust-preventive oil.
- Special Machining: Precision beveling and wall thickness matching.
- Documentation: Full IBR Form III-C and 3.1 MTC verification.
Global Export Reach for ASTM A420 Fittings (75+ Countries)
We deliver certified Low-Temperature fittings to LNG, Gas Processing, and Cryogenic projects worldwide via Mumbai's air and sea hubs.
USA (Alaska, Houston), Canada (Alberta), Russia, Norway, UK, Kazakhstan.
UAE, Saudi Arabia, Oman, Qatar (LNG projects), Singapore, Malaysia, Thailand, South Africa, Nigeria.
Inquire for ASTM A420 Pipe Fittings
Looking for a reliable ASTM A420 Stockist? Fill out the form or contact us via WhatsApp for immediate pricing and availability.
📍 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