... ; Hot forging 2) Material: Inconel 718, inconel 625, monel, hastelloy etc Valve stem 1) Process; Hot forging 2) Material: Inconel ... 718, inconel 625, monel, hastelloy etcvalve stem 1). Material: Main material of our forgings include ... superalloys and duplex stainless steels. eg. Inconel, Monel, Incoloy, Hastelloy, and Duplex F53 etc.2). Product included: Balls, rods, ...