ASTM A350-LF2 Temperature range (-50 to 800 deg. F) Where corrosion resistance is not important. This material is heat treated “Forgings of [LF2] shall be furnished in the normalized, or in the normalized and tempered, or in the quenched and tempered condition…”
Carbon steel applied in cold temperature service usually used in the normalised condition.
Nominal Composition of ASTM A350 LF2
|Silicon||0.15 – 0.30|
|Manganese||0.6 – 1.35|
Mechanical Properties of ASTM A350 LF2
Condition: Forgings of LF2 shall be furnished in the normalized, or in the normalized and tempered, or in the quenched and tempered condition.
|Ultimate Tensile Strength||485 – 655 N/mm2|
|0.2% Yield Strength||250 N/mm2 min|
|Reduction of Area||30% min|
|Charpy Impact Toughness||20 average / 16 min J at -46o C|
A general carbon steel used in the manufacture of flanges and fittings.