... if possible.N.B. Welding in the carburized and heat treated condition is not recommended.Welding ProcedureWelding of 8620 should always ... of Quality: issued in English, in addition the normal terms, production process, the mechanical property (yield strength, tensile strength, elongation ... and hardness), forged ratio, UT test result, Grain size, heat treatment methods and the sample of is shown on the ...