... inspection, like ABS, SBS,BV,GL, CCS,etc. UT test: 100% ultrasonic test according to EN10228-3, SA388, Sep 1921 etc. Heat Treatment ... Forging: Shape Diameter(m) Length(m) Shaft ≤2.0 ≤10 Block ≤3.5 / Ring ≤4.9 ≤4.0 Cylinder ≤1.5 ... /4330/A387Cr/F1/F11/F12/S410/S420/708M40/708A37 forging block/forging square part