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50Cr-50Ni Alloy vs. ASTM A232 Spring Steel

50Cr-50Ni alloy belongs to the otherwise unclassified metals classification, while ASTM A232 spring steel belongs to the iron alloys. There are 20 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 50Cr-50Ni alloy and the bottom bar is ASTM A232 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 5.7
14
Poisson's Ratio 0.26
0.29
Shear Modulus, GPa 84
73
Tensile Strength: Ultimate (UTS), MPa 620
1790
Tensile Strength: Yield (Proof), MPa 390
1610

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Specific Heat Capacity, J/kg-K 490
470
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 50
2.3
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 7.9
2.0
Embodied Energy, MJ/kg 110
28
Embodied Water, L/kg 350
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
250
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
64
Strength to Weight: Bending, points 20
42
Thermal Shock Resistance, points 14
53

Alloy Composition

Aluminum (Al), % 0 to 0.25
0
Carbon (C), % 0 to 0.1
0.48 to 0.53
Chromium (Cr), % 48 to 52
0.8 to 1.1
Iron (Fe), % 0 to 1.0
96.8 to 97.7
Manganese (Mn), % 0 to 0.3
0.7 to 0.9
Nickel (Ni), % 44.5 to 52
0
Nitrogen (N), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.020
0 to 0.035
Titanium (Ti), % 0 to 0.5
0
Vanadium (V), % 0
0.15 to 0.3