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C64800 Bronze vs. SAE-AISI H21 Steel

C64800 bronze 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 (9, in this case) are not shown.

For each property being compared, the top bar is C64800 bronze and the bottom bar is SAE-AISI H21 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
76
Tensile Strength: Ultimate (UTS), MPa 640
720 to 1790

Thermal Properties

Latent Heat of Fusion, J/g 220
250
Melting Completion (Liquidus), °C 1090
1630
Melting Onset (Solidus), °C 1030
1580
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 260
27
Thermal Expansion, µm/m-K 17
11

Otherwise Unclassified Properties

Base Metal Price, % relative 33
23
Density, g/cm3 8.9
8.5
Embodied Carbon, kg CO2/kg material 2.7
4.5
Embodied Energy, MJ/kg 43
68
Embodied Water, L/kg 310
72

Common Calculations

Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 20
23 to 58
Strength to Weight: Bending, points 19
21 to 38
Thermal Diffusivity, mm2/s 75
7.1
Thermal Shock Resistance, points 23
24 to 59

Alloy Composition

Carbon (C), % 0
0.28 to 0.36
Chromium (Cr), % 0 to 0.090
3.0 to 3.8
Cobalt (Co), % 1.0 to 3.0
0
Copper (Cu), % 92.4 to 98.8
0 to 0.25
Iron (Fe), % 0 to 1.0
87.6 to 93.8
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0.15 to 0.4
Nickel (Ni), % 0 to 0.5
0 to 0.3
Phosphorus (P), % 0 to 0.5
0 to 0.030
Silicon (Si), % 0.2 to 1.0
0.15 to 0.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.5
0
Tungsten (W), % 0
8.5 to 10
Vanadium (V), % 0
0.3 to 0.6
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.5
0