A420 WPL6 Low Temperature Carbon Steel Manufacturer & Supplier
WPB chemistry taken to low temperature service: normalised and impact tested at -46 °C. Specified wherever a carbon steel fitting must be proven tough rather than assumed tough — LNG, cold process and offshore lines.
UNS: ASTM A420 WPL6 | Category: Low Temperature Fittings
Size Range
Outer Diameter: NPS 1/2 to 36 · SCH 10 to SCH 160
Chemical Composition (%)
| C | Mn | Ni | Si |
|---|---|---|---|
| 0.30 max | 0.50-1.35 | 0.40 max | 0.15-0.30 |
Mechanical Properties
- Tensile Strength
- 415-585 MPa
- Yield Strength
- 240 MPa min
- Elongation
- 22% min
- Impact
- 18 J average at -46 °C
Applicable Standards
- ASME B16.9
- ASME B16.28
- MSS SP-75
- ASME B31.3
- EN 10204 3.1
Applications
- LNG and cryogenic process piping
- Cold service refrigeration lines
- Offshore and subsea topside piping
- Low temperature storage and loading lines
- Impact tested spools
Industries Served
- Oil & Gas
- Chemical & Petrochemical
- Marine & Shipbuilding
- Water & Desalination
- Power & Energy
- Defence
Equivalent Grades
- ASTM A420 WPL6
- ASTM A420 WPL6
- A420 WPL3
- A420 WPL3
- EN 1.5415 equivalent
- EN 1.5415 equivalent