18NiCr5-4
Material Name: Alloy SteelStandard: EN 10084-1998
18NiCr5-4 (1.5810) Chemical composition:
Carbon C: 0.16 ~ 0.21
Si Si: ≤ 0.40
Manganese Mn: 0.60 ~ 0.90
Sulfur S: to allow the residual content of ≤ 0.035
Phosphorus P: allow the residual content ≤ 0.035
Chromium Cr: 0.90 ~ 1.20
Ni-Ni: 1.20 ~ 1.50
Copper Cu: to allow the residual content ≤ 0.030
18NiCr5-4 (1.5810) Mechanical Properties:
Tensile strength σb (MPa): ≥ 785 (80)
Yield strength σs (MPa): ≥ 590 (60)
Elongation δ5 (%): ≥ 10
Reduction of area ψ (%): ≥ 50
Impact energy Akv (J): ≥ 63
Impact toughness αkv (J/cm2): ≥ 78 (8)
Hardness: ≤ 197HB
Sample size: Sample size is 25mm rough
18NiCr5-4 (1.5810) heat treatment and microstructure specifications:
Standard heat treatment: quenching 850 ℃, water, oil cooling; tempering 460 ℃, water-cooled, oil-cooling.
18NiCr5-4 (1.5810) Delivery condition: heat treatment (normalizing, annealing, or tempering) or heat treatment delivery, delivery status should be indicated in the contract.
