Shanghai Ming Yuan Metal Products Co., Ltd. supplies high-quality QRO-90 tool steel QRO-90 hot work die steel imports QRO-90 mold steel QRO-90 tool steel chemical composition 

 Yi Sheng Bai ASSAB Sweden 
 Hot work die steel casting QRO90 
 Chemical composition: 
 C Si Cr Mn Mo V Ni Ni-P P W W S S 
 2.25 0.9 1.0 0.4 0.3 2.6 

 ASSAB QRO90 is suitable for high temperature operation of chromium - molybdenum - vanadium alloy hot-work tool steels. 
 Features: 
 1 has excellent high temperature strength \ hardness and creep strength 
 (2) thermal fatigue of extended excellent thermal shock resistance 
 3 has good toughness and quality of material uniformity 
 4 has good workability 
 5 has good heat resistance 
 6 with the H13 better than the thermal conductivity. 
 Steel Type: Hot work tool steels Hotline: 18968258919 
 Steel properties: super-hot steel, excellent finish, toughness, fatigue resistance and stability, thermal conductivity. 
 Uses: suitable for die casting \ hot forging die. 
 Factory state: soft annealed to about HB185