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50Cr-50Ni Alloy vs. SAE-AISI M4 Steel

50Cr-50Ni alloy belongs to the otherwise unclassified metals classification, while SAE-AISI M4 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is 50Cr-50Ni alloy and the bottom bar is SAE-AISI M4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.26
0.29
Shear Modulus, GPa 84
76
Tensile Strength: Ultimate (UTS), MPa 620
770 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 350
260
Specific Heat Capacity, J/kg-K 490
440
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 50
25
Density, g/cm3 8.0
8.3
Embodied Carbon, kg CO2/kg material 7.9
14
Embodied Energy, MJ/kg 110
210
Embodied Water, L/kg 350
110

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21
26 to 72
Strength to Weight: Bending, points 20
23 to 45
Thermal Shock Resistance, points 14
24 to 68

Alloy Composition

Aluminum (Al), % 0 to 0.25
0
Carbon (C), % 0 to 0.1
1.3 to 1.4
Chromium (Cr), % 48 to 52
3.8 to 4.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 1.0
75.9 to 81.4
Manganese (Mn), % 0 to 0.3
0.15 to 0.4
Molybdenum (Mo), % 0
4.3 to 5.5
Nickel (Ni), % 44.5 to 52
0 to 0.3
Nitrogen (N), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.45
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0 to 0.5
0
Tungsten (W), % 0
5.3 to 6.5
Vanadium (V), % 0
3.8 to 4.5