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C94800 Bronze vs. S21904 Stainless Steel

C94800 bronze belongs to the copper alloys classification, while S21904 stainless steel belongs to the iron alloys. There are 28 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 C94800 bronze and the bottom bar is S21904 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 22
17 to 51
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
78
Tensile Strength: Ultimate (UTS), MPa 310
700 to 1000
Tensile Strength: Yield (Proof), MPa 160
390 to 910

Thermal Properties

Latent Heat of Fusion, J/g 200
290
Maximum Temperature: Mechanical, °C 190
980
Melting Completion (Liquidus), °C 1030
1400
Melting Onset (Solidus), °C 900
1350
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 39
14
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 34
15
Density, g/cm3 8.8
7.7
Embodied Carbon, kg CO2/kg material 3.5
3.0
Embodied Energy, MJ/kg 56
43
Embodied Water, L/kg 350
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 58
160 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 110
380 to 2070
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 9.8
25 to 36
Strength to Weight: Bending, points 12
23 to 29
Thermal Diffusivity, mm2/s 12
3.8
Thermal Shock Resistance, points 11
15 to 21

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.15
0
Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
19 to 21.5
Copper (Cu), % 84 to 89
0
Iron (Fe), % 0 to 0.25
59.5 to 67.4
Lead (Pb), % 0.3 to 1.0
0
Manganese (Mn), % 0 to 0.2
8.0 to 10
Nickel (Ni), % 4.5 to 6.0
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 0.050
0 to 0.030
Tin (Sn), % 4.5 to 6.0
0
Zinc (Zn), % 1.0 to 2.5
0
Residuals, % 0 to 1.3
0