Primary material for plastic molds or plastic mold

摘要

The invention relates to a primary material for plastic molds or a plastic mold per se with high use-hardness. In order to achieve a higher material hardness and improved fine-grain structure of the mold + material as compared to the prior art according to EP 1 25 1 1 87 B1, it is provided according to the invention to temper a primary material or a mold with a composition in percent by weight of C = 0.25 - 0.35 Si = 0.04 - 0.20 Mn = 1 .OO - 2.00 Cr = 1.00 - 2.00 Ni = 0.30 - less than 0.90 MO =0.30 -0.80 V = less than / equal to 0.20 A1 = 0.01 - 0.03 N = 0.0025 - 0.01 50 S =lessthanO.l5 Fe and manufacturing-specific impurities as the remainder to a hardness of higher than 340 HB.