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C55181 Copper vs. SAE-AISI H21 Steel

C55181 copper belongs to the copper alloys classification, while SAE-AISI H21 steel belongs to the iron alloys. There are 19 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 C55181 copper and the bottom bar is SAE-AISI H21 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 40
76
Tensile Strength: Ultimate (UTS), MPa 200
720 to 1790

Thermal Properties

Latent Heat of Fusion, J/g 190
250
Melting Completion (Liquidus), °C 790
1630
Melting Onset (Solidus), °C 710
1580
Specific Heat Capacity, J/kg-K 410
440
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 28
23
Density, g/cm3 8.5
8.5
Embodied Carbon, kg CO2/kg material 2.4
4.5
Embodied Energy, MJ/kg 38
68
Embodied Water, L/kg 290
72

Common Calculations

Stiffness to Weight: Axial, points 7.0
13
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 6.5
23 to 58
Strength to Weight: Bending, points 8.9
21 to 38
Thermal Shock Resistance, points 8.2
24 to 59

Alloy Composition

Carbon (C), % 0
0.28 to 0.36
Chromium (Cr), % 0
3.0 to 3.8
Copper (Cu), % 92.4 to 93
0 to 0.25
Iron (Fe), % 0
87.6 to 93.8
Manganese (Mn), % 0
0.15 to 0.4
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 7.0 to 7.5
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
Residuals, % 0 to 0.15
0