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C94500 Bronze vs. S21900 Stainless Steel

C94500 bronze belongs to the copper alloys classification, while S21900 stainless steel belongs to the iron alloys. There are 29 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 C94500 bronze and the bottom bar is S21900 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 50
220
Elastic (Young's, Tensile) Modulus, GPa 92
200
Elongation at Break, % 12
50
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 34
78
Tensile Strength: Ultimate (UTS), MPa 170
710
Tensile Strength: Yield (Proof), MPa 83
390

Thermal Properties

Latent Heat of Fusion, J/g 160
290
Maximum Temperature: Mechanical, °C 130
980
Melting Completion (Liquidus), °C 940
1400
Melting Onset (Solidus), °C 800
1350
Specific Heat Capacity, J/kg-K 330
480
Thermal Conductivity, W/m-K 52
14
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 9.7
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 30
15
Density, g/cm3 9.3
7.7
Embodied Carbon, kg CO2/kg material 3.2
3.0
Embodied Energy, MJ/kg 51
43
Embodied Water, L/kg 380
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
300
Resilience: Unit (Modulus of Resilience), kJ/m3 37
380
Stiffness to Weight: Axial, points 5.5
14
Stiffness to Weight: Bending, points 16
25
Strength to Weight: Axial, points 5.2
26
Strength to Weight: Bending, points 7.4
23
Thermal Diffusivity, mm2/s 17
3.8
Thermal Shock Resistance, points 6.7
15

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.8
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
19 to 21.5
Copper (Cu), % 66.7 to 78
0
Iron (Fe), % 0 to 0.15
59.4 to 67.4
Lead (Pb), % 16 to 22
0
Manganese (Mn), % 0
8.0 to 10
Nickel (Ni), % 0 to 1.0
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0 to 0.050
0 to 0.045
Silicon (Si), % 0 to 0.0050
0 to 1.0
Sulfur (S), % 0 to 0.080
0 to 0.030
Tin (Sn), % 6.0 to 8.0
0
Zinc (Zn), % 0 to 1.2
0