... Material: Forged Carbon Steel, Stainless Steel , Duplex Stainless Steel , Low Alloy Steel( A105,LF2,F6a,F304,F316,321,F22,F51,F11 ... .1certification and Ultrasonic Test report is provided. UT testing standard:ASTM A388 or SEP 1921 or others3.2certifification&MPT report can ... ,17-4PH,F60,4140,4340,4130,410,310,320 forged round bar