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C63020 Bronze vs. S20431 Stainless Steel

C63020 bronze belongs to the copper alloys classification, while S20431 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C63020 bronze and the bottom bar is S20431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 6.8
46
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 44
76
Shear Strength, MPa 600
500
Tensile Strength: Ultimate (UTS), MPa 1020
710
Tensile Strength: Yield (Proof), MPa 740
350

Thermal Properties

Latent Heat of Fusion, J/g 230
280
Maximum Temperature: Mechanical, °C 230
890
Melting Completion (Liquidus), °C 1070
1400
Melting Onset (Solidus), °C 1020
1360
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 18
17

Otherwise Unclassified Properties

Base Metal Price, % relative 29
12
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 3.6
2.5
Embodied Energy, MJ/kg 58
36
Embodied Water, L/kg 390
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63
270
Resilience: Unit (Modulus of Resilience), kJ/m3 2320
310
Stiffness to Weight: Axial, points 8.0
14
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 34
25
Strength to Weight: Bending, points 27
23
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 35
15

Alloy Composition

Aluminum (Al), % 10 to 11
0
Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0 to 0.050
17 to 18
Cobalt (Co), % 0 to 0.2
0
Copper (Cu), % 74.7 to 81.8
1.5 to 3.5
Iron (Fe), % 4.0 to 5.5
66.1 to 74.4
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0 to 1.5
5.0 to 7.0
Nickel (Ni), % 4.2 to 6.0
2.0 to 4.0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.5
0