SA 350 LF2 Low Temperature Carbon Steel Manufacturer & Supplier
A105 chemistry with normalising and an impact test at -46 °C. Specified wherever a carbon steel piping component must be proven tough at low temperature rather than assumed tough — LNG, cold process and offshore duty.
UNS: ASTM A350 LF2 / ASME SA-350 | Category: Pressure Vessel Forgings
Size Range
Outer Diameter: NPS 1/2 to 48 · forged weight 0.5 kg to 4 T
Chemical Composition (%)
| C | Mn | Si | Ni |
|---|---|---|---|
| 0.30 max | 0.60-1.35 | 0.15-0.30 | 0.40 max |
Mechanical Properties
- Tensile Strength
- 485-655 MPa
- Yield Strength
- 250 MPa min
- Elongation
- 22% min
- Impact
- 18 J average at -46 °C (Charpy V)
Applicable Standards
- ASTM A182
- ASTM A350
- ASME SA-182
- ASTM A388
- EN 10204 3.1
Applications
- Low temperature flanges and valve bodies
- LNG and cryogenic piping components
- Offshore and subsea fittings
- Cold service pressure vessel nozzles
- Impact tested spools
Industries Served
- Oil & Gas
- Chemical & Petrochemical
- Power & Energy
- Marine & Shipbuilding
- Pumps & Valves
- Defence
Equivalent Grades
- ASTM A350 LF2
- ASTM A350 LF2
- ASME SA-350 LF2
- ASME SA-350 LF2
- LF2 Class 1
- LF2 Class 1
- LF2 Class 2
- LF2 Class 2