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ASTM B817 Type II vs. C71580 Copper-nickel

ASTM B817 type II belongs to the titanium alloys classification, while C71580 copper-nickel belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM B817 type II and the bottom bar is C71580 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
140
Elongation at Break, % 3.0 to 13
40
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
51
Tensile Strength: Ultimate (UTS), MPa 900 to 960
330
Tensile Strength: Yield (Proof), MPa 780 to 900
110

Thermal Properties

Latent Heat of Fusion, J/g 400
230
Maximum Temperature: Mechanical, °C 350
260
Melting Completion (Liquidus), °C 1580
1180
Melting Onset (Solidus), °C 1530
1120
Specific Heat Capacity, J/kg-K 550
400
Thermal Expansion, µm/m-K 9.9
15

Otherwise Unclassified Properties

Base Metal Price, % relative 37
41
Density, g/cm3 4.6
8.9
Embodied Carbon, kg CO2/kg material 40
5.1
Embodied Energy, MJ/kg 650
74
Embodied Water, L/kg 220
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 120
100
Resilience: Unit (Modulus of Resilience), kJ/m3 2890 to 3890
47
Stiffness to Weight: Axial, points 13
8.5
Stiffness to Weight: Bending, points 34
19
Strength to Weight: Axial, points 55 to 58
10
Strength to Weight: Bending, points 45 to 47
12
Thermal Shock Resistance, points 62 to 66
11

Alloy Composition

Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.1
0 to 0.070
Chlorine (Cl), % 0 to 0.2
0
Copper (Cu), % 0.35 to 1.0
65.5 to 71
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
0 to 0.5
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0
0 to 0.3
Nickel (Ni), % 0
29 to 33
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
0
Titanium (Ti), % 82.1 to 87.8
0
Vanadium (V), % 5.0 to 6.0
0
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.5