... we can supply. Forged ringkey words: steel forged ring,forged part, Foring products Material Alloy steel : Nitralloy; Maraging 250, 300, ... 362, 4140, 4130, 4330, 4340 etc.Carbon Steel : ... 204, Monel 400, 402, 403, 404 etc.Heat resistant Steel: Tungsten, Molybdenum etc. Supply Condition:Black (forged), Rough Machined ...