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ASTM B817 Type II vs. C70250 Copper

ASTM B817 type II belongs to the titanium alloys classification, while C70250 copper belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM B817 type II and the bottom bar is C70250 copper.

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
44
Tensile Strength: Ultimate (UTS), MPa 900 to 960
520 to 740

Thermal Properties

Latent Heat of Fusion, J/g 400
220
Maximum Temperature: Mechanical, °C 350
210
Melting Completion (Liquidus), °C 1580
1100
Melting Onset (Solidus), °C 1530
1080
Specific Heat Capacity, J/kg-K 550
390
Thermal Expansion, µm/m-K 9.9
17

Otherwise Unclassified Properties

Base Metal Price, % relative 37
31
Density, g/cm3 4.6
8.9
Embodied Carbon, kg CO2/kg material 40
2.9
Embodied Energy, MJ/kg 650
45
Embodied Water, L/kg 220
310

Common Calculations

Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 34
18
Strength to Weight: Axial, points 55 to 58
16 to 23
Strength to Weight: Bending, points 45 to 47
16 to 21
Thermal Shock Resistance, points 62 to 66
18 to 26

Alloy Composition

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
92.7 to 97.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
0
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0
0.050 to 0.3
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0
2.2 to 4.2
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Silicon (Si), % 0 to 0.1
0.25 to 1.2
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 1.0
Residuals, % 0 to 0.4
0 to 0.5