The ASTM A182 F6A forging material specification covers 6A grade stainless steel, which is used to make bare forgings or forged and machined products for high temperature service applications. The forged flanges, fittings, valve bodies, fasteners, plates, bars, rings, and other pressure parts offered by NESCO Engineering are in accordance with the astm a182 grade F6a specification. ... http://nescoeng.com