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50Cr-50Ni-Cb Alloy vs. ASTM A369 Grade FP91

50Cr-50Ni-Cb alloy belongs to the otherwise unclassified metals classification, while ASTM A369 grade FP91 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 A369 grade FP91.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 5.6
19
Poisson's Ratio 0.26
0.28
Shear Modulus, GPa 84
75
Tensile Strength: Ultimate (UTS), MPa 620
670
Tensile Strength: Yield (Proof), MPa 390
460

Thermal Properties

Latent Heat of Fusion, J/g 350
270
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 60
7.0
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 9.2
2.6
Embodied Energy, MJ/kg 130
37
Embodied Water, L/kg 350
88

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
110
Resilience: Unit (Modulus of Resilience), kJ/m3 370
560
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 20
22
Thermal Shock Resistance, points 14
18

Alloy Composition

Aluminum (Al), % 0 to 0.25
0 to 0.020
Carbon (C), % 0 to 0.1
0.080 to 0.12
Chromium (Cr), % 47 to 52
8.0 to 9.5
Iron (Fe), % 0 to 1.0
87.3 to 90.3
Manganese (Mn), % 0 to 0.3
0.3 to 0.6
Molybdenum (Mo), % 0
0.85 to 1.1
Nickel (Ni), % 43.3 to 51.6
0 to 0.4
Niobium (Nb), % 1.4 to 1.7
0.060 to 0.1
Nitrogen (N), % 0 to 0.16
0.030 to 0.070
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.5
0.2 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.025
Titanium (Ti), % 0 to 0.5
0 to 0.010
Vanadium (V), % 0
0.18 to 0.25
Zirconium (Zr), % 0
0 to 0.010