... 1) Grade: 1.2738 / 718H / P20+Ni Plastic mould steel block 2) Specification: 120-800mm * 200-1900mm 3) Q+T 30-38HRC P20 ... 0,28 - 0,400,20 - 0,800.60 - 1,00<=0,035<=0,0351,40 - 2,000,30 ... - 0,550.85 – 1.15DIN- 1.2738 % C Si Mn P S Cr Mo ... ,35 - 0,450,20 - 0,401,30 - 1,60<=0,035<=0,0351,80 - 2,100,15 ... - 0,250.90 – 1.20Similar grade: AISI-P20+Ni,718,M238Hardening : 1050 - 850 °C ( ...