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C65500 Bronze vs. S20431 Stainless Steel

C65500 bronze belongs to the copper alloys classification, while S20431 stainless steel belongs to the iron alloys. There are 30 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 C65500 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, % 4.0 to 70
46
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 62 to 97
86
Shear Modulus, GPa 43
76
Shear Strength, MPa 260 to 440
500
Tensile Strength: Ultimate (UTS), MPa 360 to 760
710
Tensile Strength: Yield (Proof), MPa 120 to 430
350

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 200
890
Melting Completion (Liquidus), °C 1030
1400
Melting Onset (Solidus), °C 970
1360
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 36
15
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 29
12
Density, g/cm3 8.6
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.5
Embodied Energy, MJ/kg 42
36
Embodied Water, L/kg 300
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11 to 450
270
Resilience: Unit (Modulus of Resilience), kJ/m3 62 to 790
310
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 12 to 24
25
Strength to Weight: Bending, points 13 to 21
23
Thermal Diffusivity, mm2/s 10
4.0
Thermal Shock Resistance, points 12 to 26
15

Alloy Composition

Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
17 to 18
Copper (Cu), % 91.5 to 96.7
1.5 to 3.5
Iron (Fe), % 0 to 0.8
66.1 to 74.4
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0.5 to 1.3
5.0 to 7.0
Nickel (Ni), % 0 to 0.6
2.0 to 4.0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 2.8 to 3.8
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 1.5
0
Residuals, % 0 to 0.5
0