... tools High toughness & great thermoplasticity M2,W6Mo5Cr4V2,JIS SKH51,NF HS6-5-2,DIN 1.3343s1.Chemical composition CSiMnCrWMoVPS0.80-0.900.20 ... signing the contract 6.Forge Ratio: no less than 4:1 7.Test: Ultrasonic Test SEP 1921 Class D/d 8 ... . 9.MOQ: 10 tons 10. Certificate: ISO9001:2008 M2,W6Mo5Cr4V2,JIS SKH51,DIN 1.3343s