5Cr21Mn9Ni4N Non-magnetic Die Steel
5Cr21Mn9Ni4N non-magnetic die steel is low nickel austenitic non-magnetic stainless die steel and internal combustion engine valve steel. The steel has high hardness (>60HRC), excellent wear resistance, low permeability (
Chemical composition of magnetic die steel 5Cr21
Steel number European number CsicrNINPSMn5Cr21OS-5Cr2108.48 ~0.58≤ 0.3520.0 ~ 22.03.25 ~ 4.50.35 ~0.5≤ 0.04 ≤ 0.038.0 ~10.0
Mechanical properties
Conditional yield strength: 580MPa
Tensile strength: 950MPa
Elongation: 8%
Section shrinkage rate: 10%
Hardness ≥302HBS
Heat treatment specifications:
Specification for solution treatment and aging
Solution temperature 1100~1200℃, water cooling, hardness of about 30HRC, aging temperature (730±780)°C, hardness increased from 30HRC after solution treatment to about 35HRC.
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