... 500mm Surface: Black/Turned P20+Ni/3Cr2NiMo/DIN1.2738/718/M238 Applications: Injection moulds for thermo-plastics, ... thermo-plastics, blow moulds, forming tools, machine components.Steel Grade: GB 3Cr2NiMo, % C Si Mn P S ... - 2,000,30 - 0,550.85 – 1.15DIN- 1.2738 % C Si Mn P S Cr Mo Ni ... 0,35 - 0,450,20 - 0,401,30 - 1, ... size 20x 50mm ,Max Size, 400x 500mm 1.2738 mould steel