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C90800 Bronze vs. S21900 Stainless Steel

C90800 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 C90800 bronze and the bottom bar is S21900 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
220
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 13
50
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 330
710
Tensile Strength: Yield (Proof), MPa 170
390

Thermal Properties

Latent Heat of Fusion, J/g 190
290
Maximum Temperature: Mechanical, °C 170
980
Melting Completion (Liquidus), °C 990
1400
Melting Onset (Solidus), °C 870
1350
Specific Heat Capacity, J/kg-K 370
480
Thermal Conductivity, W/m-K 68
14
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 36
15
Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 3.8
3.0
Embodied Energy, MJ/kg 62
43
Embodied Water, L/kg 410
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
300
Resilience: Unit (Modulus of Resilience), kJ/m3 140
380
Stiffness to Weight: Axial, points 6.9
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 11
26
Strength to Weight: Bending, points 12
23
Thermal Diffusivity, mm2/s 21
3.8
Thermal Shock Resistance, points 12
15

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
19 to 21.5
Copper (Cu), % 85.3 to 89
0
Iron (Fe), % 0 to 0.15
59.4 to 67.4
Lead (Pb), % 0 to 0.25
0
Manganese (Mn), % 0
8.0 to 10
Nickel (Ni), % 0 to 0.5
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0 to 0.3
0 to 0.045
Silicon (Si), % 0 to 0.0050
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030
Tin (Sn), % 11 to 13
0
Zinc (Zn), % 0 to 0.25
0