What is ASTM A350 LF2 forged steel flange?

The ASTM A350 LF2 forged steel flange means the flange which material is ASTM A350 LF2 and the products is forged .ASTM A350 LF2 has good machinability,dependent on condition,and operations such as sawing,turning,broaching,milling etc.It can be accomplished satisfactorily using standard machine tool manufacturers recommended speeds and feeds.
ASTM A350 LF2 forged steel flange is usually used for ship building,oil and gas transport in the cold weather on -50℃ to 800℃.Commonly people think it’s better than the ASTM A105 steel grade material.

ASTM A350 Grade LF2 is a general carbon steel usually supplied in the Normalised,Normalised and Tempered or Quench and Tempered condition.It is typified by having moderate strength and impact toughness and is used extensively for the manufacture of flanges and fittings,and applications which require cold temperature service where corrosion resistance is not important.

Chemical Composition (%) of ASTM A350 LF2:

Grade	Weight %
C	<0.30%
Si	0.15 – 0.30%
Mn	0.60 – 1.35%
P	<0.035%
S	<0.040%
Cr	<0.3%
Mu	<0.12%
Cu	<0.4%
Nb	<0.02%
V	<0.08%

Mechanical Property Requirements of ASTM A350 LF2:

Tensile Strength Mpa	Yield (0.2%) MpA	Elongation %	Reduction of Area %	Charpy J -46°C	Hardness HB
485-655 (70-95KSi)	>250 (36KSi)	>22	>30	>20	<197HB

The ASTM A350 LF2 forged steel flanges contain weld neck flange,blind flange,slip on flange,plate flange,socket welding flange,threaded flange,lap joint flange,reducer flange,nozzle flange,orifice flange etc.For any flanges needs you may have,please browse through our products list,then feel free to contact us.