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C95700 Bronze vs. S21904 Stainless Steel

C95700 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 C95700 bronze and the bottom bar is S21904 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
200
Elongation at Break, % 23
17 to 51
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 47
78
Tensile Strength: Ultimate (UTS), MPa 680
700 to 1000
Tensile Strength: Yield (Proof), MPa 310
390 to 910

Thermal Properties

Latent Heat of Fusion, J/g 230
290
Maximum Temperature: Mechanical, °C 220
980
Melting Completion (Liquidus), °C 990
1400
Melting Onset (Solidus), °C 950
1350
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 12
14
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 26
15
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 3.3
3.0
Embodied Energy, MJ/kg 54
43
Embodied Water, L/kg 360
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
160 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 390
380 to 2070
Stiffness to Weight: Axial, points 8.5
14
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 23
25 to 36
Strength to Weight: Bending, points 21
23 to 29
Thermal Diffusivity, mm2/s 3.3
3.8
Thermal Shock Resistance, points 21
15 to 21

Alloy Composition

Aluminum (Al), % 7.0 to 8.5
0
Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
19 to 21.5
Copper (Cu), % 71 to 78.5
0
Iron (Fe), % 2.0 to 4.0
59.5 to 67.4
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 11 to 14
8.0 to 10
Nickel (Ni), % 1.5 to 3.0
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0