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C71500 Copper-nickel vs. SAE-AISI H21 Steel

C71500 copper-nickel belongs to the copper alloys classification, while SAE-AISI H21 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C71500 copper-nickel and the bottom bar is SAE-AISI H21 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 52
76
Tensile Strength: Ultimate (UTS), MPa 380 to 620
720 to 1790

Thermal Properties

Latent Heat of Fusion, J/g 230
250
Melting Completion (Liquidus), °C 1240
1630
Melting Onset (Solidus), °C 1170
1580
Specific Heat Capacity, J/kg-K 400
440
Thermal Conductivity, W/m-K 28
27
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 41
23
Density, g/cm3 8.9
8.5
Embodied Carbon, kg CO2/kg material 5.1
4.5
Embodied Energy, MJ/kg 74
68
Embodied Water, L/kg 280
72

Common Calculations

Stiffness to Weight: Axial, points 8.6
13
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 12 to 19
23 to 58
Strength to Weight: Bending, points 13 to 18
21 to 38
Thermal Diffusivity, mm2/s 7.7
7.1
Thermal Shock Resistance, points 12 to 20
24 to 59

Alloy Composition

Carbon (C), % 0
0.28 to 0.36
Chromium (Cr), % 0
3.0 to 3.8
Copper (Cu), % 63.5 to 70.6
0 to 0.25
Iron (Fe), % 0.4 to 1.0
87.6 to 93.8
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Nickel (Ni), % 29 to 33
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.15 to 0.5
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
8.5 to 10
Vanadium (V), % 0
0.3 to 0.6
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0