Carbon Alloy Special Steels

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IFA forge carbon alloy special steels for two key markets – Aerospace / Aerostructures and Oil and Gas Valves. We source these alloys from Prime Contractor and OEM approved sources.


HYKRO BS S106 W.Nr/EN MSRR 6001, MSRR 6002
F22 UNS K21590 : WNr/EN 1.7380 FMC Specs: M20708,M20714, M20717,
M20718,M20720,M20722
F65 ASTM A694 F65
LF 2 UNS K03011 : ASTM A350 Grade LF2
4130 UNS G41300 : W.Nr/EN 1.7218 AMS 6348/70 : FMC Spec M21509, M21511
4140 UNS 41400 : W.Nr/EN 1.7225 : FMC Spec M20305, M20306, M20307, M20313
4145 UNS G41450 : W.Nr/EN 1.2332
4340 UNS G43400 : W.Nr/EN 1.6552 : AMS 6409/14/15/84 : BS S149, :
FMC Spec M20504, M20509
8630 UNS G86300 : W.Nr/EN 1.6545 : FMC Spec M20407, M20408,
M20409,M20411,M20412
Various British “S” Specs
for Aerospace
S15,S62,S82,S95,S106, S119,S130,S132,S140,S149, S151,S155,S156,S157,S162-
S162

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