S7 steel is heavy duty tool steel and medium carbon alloy steel. S7 die steel has a relatively high content and has good tempering resistance and high temperature oxidation resistance. In addition, the steel also has excellent wear resistance, excellent corrosion processability, excellent wire cutting performance and excellent impact temperature performance. After the bar in the state is annealed and softened, its initial structure is F+C, which must be used after heat treatment.


S7 die steel round steel chemical element percentage %:

S7 die steel plate use:
S7 die steel rods are suitable for die steel that bears heavy loads;
S7 mold steel modules are suitable for thermosetting plastic molds and high temperature thermosetting plastic molds;
S7 mold steel round bar is suitable for fixed mold and dynamic mold inserts;
S7 die steel plate is suitable for cold stamping dies with high wear resistance, high toughness and high hardness.

S7 die steel material supply status and factory hardness:
S7 die steel bar/steel plate/round steel/round bar/steel/material/material/module supply state is annealed state, S7 factory hardness 200-225HBW

S7 mold steel heat treatment hardness:
S7 die steel quenching temperature 850-880 ºC, oil cooling or salt bath; tempering temperature 550 ºC, heat treatment hardness 54-58HRC