Although NAK80 and S 136 are both plastic die steels, NAK80 and S 136 are two different die steels with different properties and uses. If we must compare them, there are roughly five differences:
1) die steels have different properties. NAK80 is a pre-hardened mirror polished plastic die steel. S 136 is air stainless steel with no hardness, and mirror polished plastic die steel with anti-corrosion and anti-rust functions.
2) Different hardness. NAK80 is pre-hardened die steel, and the ex-factory hardness is HRC38-4 1. The hardness of S 136 can reach HRC48-52 after quenching and hardening.
3) The mirror polishing performance is different. NAK80 mirror polishing can reach 10000- 12000 mesh, and high-quality S 136 mirror polishing can reach 12000- 18000 mesh after quenching and hardening.
4) Different applications. NAK80 is mainly used for mirror polishing plastic products, and does not need rust-proof plastic molds. S 136 can be used for plastic products with high requirements for mirror polishing, such as optical mirror plastic products and plastic molds with anti-corrosion and anti-rust functions.
5) The price is different. The price of NAK80 will not exceed 80.0/ kg. The price of S 136 die steel varies greatly, ranging from ten yuan to more than one hundred yuan per kilogram.