ASTM A420 WPL6, WPL3, WPL9, WPL8 Butt Weld Fittings Manufacturer India
ASTM A420 Butt Weld Pipe Fittings Manufacturer, Supplier & Exporter – Grades WPL6, WPL3, WPL9, WPL8
Dipti Metal Industries is a reputed manufacturer and exporter of ASTM A420 butt weld pipe fittings made from carbon and alloy steel for low-temperature applications. We supply elbows, reducers, tees, caps, and stub ends in grades WPL6, WPL3, WPL9, and WPL8.
Grades Available Under ASTM A420
- WPL6: Low temperature carbon steel (LTCS) – tested at –50°F (–45°C)
- WPL3: 3.5% Ni steel – tested at –150°F (–100°C)
- WPL9: 2.25% Ni alloy steel – tested at –100°F (–75°C)
- WPL8: 9% Ni alloy – cryogenic applications up to –320°F (–195°C)
Butt Weld Fitting Types
- Elbows – 90°, 45° (Long/Short Radius)
- Reducers – Concentric & Eccentric
- Tees – Equal & Reducing
- Caps & Crosses
- Stub Ends – Short & Long Pattern
Manufacturing Standards
- ASTM A420 / ASME SA420
- ASME B16.9 (Factory-made Wrought Steel Buttwelding Fittings)
- MSS SP-75 (for large-diameter/high-strength fittings)
Material and Heat Treatment
Fittings are produced from forgings or seamless/welded pipe, normalized or normalized and tempered as required. All grades undergo impact testing and are supplied in annealed or heat-treated condition.
Mechanical Properties
| Grade | Tensile Strength (ksi) | Yield Strength (ksi) | Impact Temp (°F) |
|---|---|---|---|
| WPL6 | 60–95 | 35 min | –50 |
| WPL3 | 65–90 | 35 min | –150 |
| WPL9 | 63–88 | 46 min | –100 |
| WPL8 | 100–125 | 75 min | –320 |
Chemical Composition (Typical)
- WPL6: C ≤ 0.30%, Mn 0.5–1.35%, Si 0.15–0.40%
- WPL3: Ni 3.2–3.8%
- WPL9: Ni 1.6–2.24%
- WPL8: Ni 8.4–9.6%
Testing & Certification
- Charpy V-Notch Impact Testing as per grade requirement
- Hydrostatic & Visual Inspection
- Radiographic Testing of welds (if applicable)
- EN 10204 3.1/3.2 Mill Test Certificate
- Third-Party Inspection (TUV, BV, SGS) available
Export Markets
- Middle East: Saudi Arabia, UAE, Qatar, Oman
- Asia: Singapore, Malaysia, South Korea, Japan
- Europe: UK, Germany, Netherlands, France
- Americas: USA, Canada, Mexico, Brazil
- Africa: Egypt, Nigeria, South Africa
- Oceania: Australia, New Zealand
Frequently Asked Questions (FAQ)
What is ASTM A420 standard?
ASTM A420 is the specification for wrought carbon steel and alloy steel butt-welding fittings intended for low-temperature service, including seamless and welded construction.
What grades are covered under ASTM A420?
The standard includes WPL6, WPL3, WPL9, and WPL8 – each suitable for different low-temperature applications depending on strength and nickel content.
Are forged or socket weld fittings included in A420?
No. ASTM A420 applies only to butt-weld fittings made from wrought materials. Socket weld and threaded fittings fall under ASME B16.11 and other standards.
Do you offer radiographic testing for welded A420 fittings?
Yes. Welded fittings can be supplied with RT or UT reports depending on customer requirements or project specifications.
Contact Dipti Metal Industries to get a quote for ASTM A420 butt-weld fittings in any grade or size for your low-temperature application.
Related Pages
ASTM A234 WPB Pipe Fittings | Carbon Steel Fittings | ASME B16.9 Fittings
