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ASTM B817 Type II vs. 50Cr-50Ni-Cb Alloy

ASTM B817 type II belongs to the titanium alloys classification, while 50Cr-50Ni-Cb alloy belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM B817 type II and the bottom bar is 50Cr-50Ni-Cb alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
210
Elongation at Break, % 3.0 to 13
5.6
Poisson's Ratio 0.32
0.26
Shear Modulus, GPa 40
84
Tensile Strength: Ultimate (UTS), MPa 900 to 960
620
Tensile Strength: Yield (Proof), MPa 780 to 900
390

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Specific Heat Capacity, J/kg-K 550
480
Thermal Expansion, µm/m-K 9.9
15

Otherwise Unclassified Properties

Base Metal Price, % relative 37
60
Density, g/cm3 4.6
8.0
Embodied Carbon, kg CO2/kg material 40
9.2
Embodied Energy, MJ/kg 650
130
Embodied Water, L/kg 220
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 120
30
Resilience: Unit (Modulus of Resilience), kJ/m3 2890 to 3890
370
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 34
25
Strength to Weight: Axial, points 55 to 58
21
Strength to Weight: Bending, points 45 to 47
20
Thermal Shock Resistance, points 62 to 66
14

Alloy Composition


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Aluminum (Al), % 5.0 to 6.0
0 to 0.25
Carbon (C), % 0 to 0.1
0 to 0.1
Chlorine (Cl), % 0 to 0.2
0
Chromium (Cr), % 0
47 to 52
Copper (Cu), % 0.35 to 1.0
0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
0 to 1.0
Manganese (Mn), % 0
0 to 0.3
Nickel (Ni), % 0
43.3 to 51.6
Niobium (Nb), % 0
1.4 to 1.7
Nitrogen (N), % 0 to 0.040
0 to 0.16
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.1
0 to 0.5
Sodium (Na), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 1.5 to 2.5
0
Titanium (Ti), % 82.1 to 87.8
0 to 0.5
Vanadium (V), % 5.0 to 6.0
0
Residuals, % 0 to 0.4
0