1. No.
2. Both are commonly used die steels.
3. S136H is super mirror plastic mold steel, pre hardened, with a hardness of about 30-35HRC, and no further heat treatment is required.
4. Chemical composition: C: 0.38 Si: 0.8 Mn: 0.5 Cr: 13.6 V.
5. It is commonly used for injection molds with high requirements in small and medium-sized batches.
6. S136 is a kind of quenching material, which is very soft and can only be used after quenching. The hardness after quenching can reach about 58HRC.
7. Chemical composition: C: 0.40 Si: 0.8 Mn: 0.5 Cr: 13.5 V: 0.2 Mo: 0.6 S: 0.03 Quenching and low temperature tempering treatment shall be performed for the more suitable use method.
8. Quenching is to heat it to 1000-1050 ℃ for a certain period of time, then quench it in oil to cool it to 50-100 ℃ and immediately temper it to prevent cracking.
9. Tempering hardness at 200 ℃ can reach more than 48HRC, with better polishing performance and better corrosion resistance.
10. It is commonly used for injection molds in large quantities.