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C51100 Bronze vs. S20432 Stainless Steel

C51100 bronze belongs to the copper alloys classification, while S20432 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 C51100 bronze and the bottom bar is S20432 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 2.5 to 50
45
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 67 to 93
81
Shear Modulus, GPa 42
76
Shear Strength, MPa 230 to 410
400
Tensile Strength: Ultimate (UTS), MPa 330 to 720
580
Tensile Strength: Yield (Proof), MPa 93 to 700
230

Thermal Properties

Latent Heat of Fusion, J/g 200
280
Maximum Temperature: Mechanical, °C 190
900
Melting Completion (Liquidus), °C 1060
1410
Melting Onset (Solidus), °C 970
1370
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 84
15
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 20
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 32
13
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 48
38
Embodied Water, L/kg 340
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 140
210
Resilience: Unit (Modulus of Resilience), kJ/m3 38 to 2170
140
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 10 to 22
21
Strength to Weight: Bending, points 12 to 20
20
Thermal Diffusivity, mm2/s 25
4.0
Thermal Shock Resistance, points 12 to 26
13

Alloy Composition

Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
17 to 18
Copper (Cu), % 93.8 to 96.5
2.0 to 3.0
Iron (Fe), % 0 to 0.1
66.7 to 74
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
3.0 to 5.0
Nickel (Ni), % 0
4.0 to 6.0
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0.030 to 0.35
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 3.5 to 4.9
0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.5
0