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50Cr-50Ni-Cb Alloy vs. ASTM A387 Grade 12 Steel

50Cr-50Ni-Cb alloy belongs to the otherwise unclassified metals classification, while ASTM A387 grade 12 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is 50Cr-50Ni-Cb alloy and the bottom bar is ASTM A387 grade 12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 5.6
25
Poisson's Ratio 0.26
0.29
Shear Modulus, GPa 84
73
Tensile Strength: Ultimate (UTS), MPa 620
470 to 520
Tensile Strength: Yield (Proof), MPa 390
260 to 310

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 60
2.8
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 9.2
1.6
Embodied Energy, MJ/kg 130
21
Embodied Water, L/kg 350
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
98 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 370
180 to 250
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
16 to 18
Strength to Weight: Bending, points 20
17 to 18
Thermal Shock Resistance, points 14
14 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.25
0
Carbon (C), % 0 to 0.1
0.050 to 0.17
Chromium (Cr), % 47 to 52
0.8 to 1.2
Iron (Fe), % 0 to 1.0
97 to 98.2
Manganese (Mn), % 0 to 0.3
0.4 to 0.65
Molybdenum (Mo), % 0
0.45 to 0.6
Nickel (Ni), % 43.3 to 51.6
0
Niobium (Nb), % 1.4 to 1.7
0
Nitrogen (N), % 0 to 0.16
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.5
0.15 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.025
Titanium (Ti), % 0 to 0.5
0