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60Cr-40Ni Alloy vs. SAE-AISI 8740 Steel

60Cr-40Ni alloy belongs to the otherwise unclassified metals classification, while SAE-AISI 8740 steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is 60Cr-40Ni alloy and the bottom bar is SAE-AISI 8740 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 87
73
Tensile Strength: Ultimate (UTS), MPa 870
580 to 670
Tensile Strength: Yield (Proof), MPa 660
380 to 570

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Specific Heat Capacity, J/kg-K 490
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 49
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 7.4
1.5
Embodied Energy, MJ/kg 110
20
Embodied Water, L/kg 380
50

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 1000
390 to 850
Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 31
20 to 24
Strength to Weight: Bending, points 26
20 to 22
Thermal Shock Resistance, points 18
17 to 20

Alloy Composition

Aluminum (Al), % 0 to 0.25
0
Carbon (C), % 0 to 0.1
0.38 to 0.43
Chromium (Cr), % 58 to 62
0.4 to 0.6
Iron (Fe), % 0 to 1.0
96.5 to 97.7
Manganese (Mn), % 0 to 0.3
0.75 to 1.0
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 34.5 to 42
0.4 to 0.7
Nitrogen (N), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.020
0 to 0.040
Titanium (Ti), % 0 to 0.5
0