2023-05-06

S7 die steel has higher chromium content and better resistance to flame and oxidation at high temperature. In addition, the steel also has excellent wear resistance, excellent floral machining, excellent wire cutting and excellent impact toughness properties. After annealing and softening, the original structure of the rolled bar is F+C, which must be used after heat treatment.

S7 Die Steel Round Steel Chemical element % :
S7 steel plate C Si Mn Cr Mo V P/S
S7 Sheet 0.51 0.30 0.66 3.18 1.40 0.23 0.030
S7 die steel plate use:
S7 die steel steel rod is suitable for heavy load bearing die steel;
S7 die steel module is suitable for thermosetting plastic mold, high temperature thermosetting plastic mold;
S7 die steel round rod is suitable for fixed die and moving die inserts;
S7 die steel plate is suitable for cold stamping die with high wear resistance, high toughness and high hardness.

S7 die steel round steel chemical element % : 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
Heat treatment hardness of S7 die steel:
Quenching temperature of S7 die steel 850-880℃, oil cold or salt bath; The tempering temperature is 550℃, and the hardness of heat treatment is 54-58HRC
S7 steel plate C Si Mn Cr Mo V P/S
S7 Sheet 0.51 0.30 0.66 3.18 1.40 0.23 0.030
S7 die steel plate use:
S7 die steel steel rod is suitable for heavy load bearing die steel;
S7 die steel module is suitable for thermosetting plastic mold, high temperature thermosetting plastic mold;
S7 die steel round rod is suitable for fixed die and moving die inserts;
S7 die steel plate is suitable for cold stamping die with high wear resistance, high toughness and high hardness.