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C63020 Bronze vs. S81921 Stainless Steel

C63020 bronze belongs to the copper alloys classification, while S81921 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 S81921 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 6.8
29
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 44
79
Shear Strength, MPa 600
460
Tensile Strength: Ultimate (UTS), MPa 1020
710
Tensile Strength: Yield (Proof), MPa 740
500

Thermal Properties

Latent Heat of Fusion, J/g 230
290
Maximum Temperature: Mechanical, °C 230
990
Melting Completion (Liquidus), °C 1070
1430
Melting Onset (Solidus), °C 1020
1390
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 18
13

Otherwise Unclassified Properties

Base Metal Price, % relative 29
14
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 3.6
2.9
Embodied Energy, MJ/kg 58
41
Embodied Water, L/kg 390
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63
180
Resilience: Unit (Modulus of Resilience), kJ/m3 2320
630
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
20

Alloy Composition

Aluminum (Al), % 10 to 11
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.050
19 to 22
Cobalt (Co), % 0 to 0.2
0
Copper (Cu), % 74.7 to 81.8
0
Iron (Fe), % 4.0 to 5.5
66.7 to 75.9
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0 to 1.5
2.0 to 4.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 4.2 to 6.0
2.0 to 4.0
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0
0 to 0.040
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