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50Cr-50Ni Alloy vs. ASTM A369 Grade FP21

50Cr-50Ni alloy belongs to the otherwise unclassified metals classification, while ASTM A369 grade FP21 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 alloy and the bottom bar is ASTM A369 grade FP21.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 5.7
20
Poisson's Ratio 0.26
0.29
Shear Modulus, GPa 84
74
Tensile Strength: Ultimate (UTS), MPa 620
470
Tensile Strength: Yield (Proof), MPa 390
240

Thermal Properties

Latent Heat of Fusion, J/g 350
260
Specific Heat Capacity, J/kg-K 490
470
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 50
4.0
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 7.9
1.8
Embodied Energy, MJ/kg 110
23
Embodied Water, L/kg 350
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
80
Resilience: Unit (Modulus of Resilience), kJ/m3 350
150
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
17
Strength to Weight: Bending, points 20
17
Thermal Shock Resistance, points 14
14

Alloy Composition

Aluminum (Al), % 0 to 0.25
0
Carbon (C), % 0 to 0.1
0.050 to 0.15
Chromium (Cr), % 48 to 52
2.7 to 3.4
Iron (Fe), % 0 to 1.0
94.3 to 96.2
Manganese (Mn), % 0 to 0.3
0.3 to 0.6
Molybdenum (Mo), % 0
0.8 to 1.1
Nickel (Ni), % 44.5 to 52
0
Nitrogen (N), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.025
Titanium (Ti), % 0 to 0.5
0