Pressure vessel steel
A350-LF2 pressure vessel steel
A350 LF2 is low-temperature forging steel for ASME flanges. LF2 is the toughness class — not the same certificate as A105.
- Delivery conditions
- +N / +NT
- Also known as
- SA-350 LF2
Designations
- EN standard
- SA-350 LF2
- Group
- Pressure vessel steel
What it is used for
Flanges and fittings where the drawing says A350 LF2.
Limits
A105 when low temperature is not required. P355NL1 when EN 10028 governs the plate.
Delivery
We source A350-LF2 from European mill partners as round bar, flat bar, square bar, cut to your dimensions and ship the certificate with the material. Typical condition: +N / +NT. Standard: SA-350 LF2. From a single cut piece to larger lots — with no minimum charge, so you do not have to buy a full commercial length to get what you need.
Certificates and documentation
A350-LF2 can be supplied with a material certificate to EN 10204, depending on producer, dimension and the requirements specified for the delivery. On pressure-bearing material the certificate is part of the product: standard, condition and tests must be on the enquiry, and 3.2 must be agreed before the material is locked at the mill. EN 10204 3.1 can be supplied on a wide range of our materials — 3.2 and third party by project, when the mill can issue it.
Dimension programme
| Form | Range | Note |
|---|---|---|
| Round bar | Bar to order | When the form is bar, not plate. |
| Fittings | Ø12–Ø2000 mm | ASME 1/2–60″ (Ø15–Ø1524 mm). Type A and B. Not a stock statement. |
| Flanges | Ø14–Ø2000 mm | ASME 1/2–60″ (Ø15–Ø1524 mm). PN 6–400. Not a stock statement. |
The range is a delivery programme, not a stock statement. Length is cut to your drawing.
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Send your enquiry
State grade, dimensions and quantity — or attach a drawing. We reply with a quote.