... Open Die Forging, Main Shaft, Wind Power Shaft, Stabilizer, Flange, Coupling, BOP Body, Tube Plate, Roller Forging, Roller Shell, Ring Forging ... Research Institute, CSIC. UT test: 100% ultrasonic test according to EN10228-3, SA388, Sep 1921 C/c etc. Heat Treatment ... table. Steel Ingot: EAF-LF-VD/ESR. Material Certificate according to En10204-3.1 is requested from ingot supplier. 6. Specifications ...