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ASTM B817 Type II vs. C72500 Copper-nickel

ASTM B817 type II belongs to the titanium alloys classification, while C72500 copper-nickel belongs to the copper 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 ASTM B817 type II and the bottom bar is C72500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 40
45
Tensile Strength: Ultimate (UTS), MPa 900 to 960
420 to 780

Thermal Properties

Latent Heat of Fusion, J/g 400
210
Maximum Temperature: Mechanical, °C 350
210
Melting Completion (Liquidus), °C 1580
1130
Melting Onset (Solidus), °C 1530
1060
Specific Heat Capacity, J/kg-K 550
390
Thermal Expansion, µm/m-K 9.9
17

Otherwise Unclassified Properties

Base Metal Price, % relative 37
35
Density, g/cm3 4.6
8.9
Embodied Carbon, kg CO2/kg material 40
3.6
Embodied Energy, MJ/kg 650
55
Embodied Water, L/kg 220
320

Common Calculations

Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 34
19
Strength to Weight: Axial, points 55 to 58
13 to 24
Strength to Weight: Bending, points 45 to 47
14 to 21
Thermal Shock Resistance, points 62 to 66
14 to 27

Alloy Composition


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Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.1
0
Chlorine (Cl), % 0 to 0.2
0
Copper (Cu), % 0.35 to 1.0
85.2 to 89.7
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
0 to 0.6
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0
8.5 to 10.5
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Silicon (Si), % 0 to 0.1
0
Sodium (Na), % 0 to 0.2
0
Tin (Sn), % 1.5 to 2.5
1.8 to 2.8
Titanium (Ti), % 82.1 to 87.8
0
Vanadium (V), % 5.0 to 6.0
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0 to 0.4
0 to 0.2