Chemical composition of ledeburite high alloy die steel
P-20 is a modified pre-hardened mold steel with an alloy content aproximately comprising: 0.30 +/- 0.05% Carbon, 0.60 +/- 0.05% Manganese, 0.50 +/- 0.035% Silicon, 3.75 +/- 0.15% Chrome, 1.00 +/- 0.10% Molybdenum, 0.50 +/- 0.10% Nickel, 0.100 max. Sulfur, 0.035 max. Phosphorous, 0.15 min. Tungsten......