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C65400 Bronze vs. S21904 Stainless Steel

C65400 bronze belongs to the copper alloys classification, while S21904 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C65400 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, % 2.6 to 47
17 to 51
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
78
Shear Strength, MPa 350 to 530
510 to 620
Tensile Strength: Ultimate (UTS), MPa 500 to 1060
700 to 1000
Tensile Strength: Yield (Proof), MPa 170 to 910
390 to 910

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 200
980
Melting Completion (Liquidus), °C 1020
1400
Melting Onset (Solidus), °C 960
1350
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 36
14
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 31
15
Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 2.8
3.0
Embodied Energy, MJ/kg 45
43
Embodied Water, L/kg 310
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 480
160 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 3640
380 to 2070
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 16 to 34
25 to 36
Strength to Weight: Bending, points 16 to 27
23 to 29
Thermal Diffusivity, mm2/s 10
3.8
Thermal Shock Resistance, points 18 to 39
15 to 21

Alloy Composition


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Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0.010 to 0.12
19 to 21.5
Copper (Cu), % 93.8 to 96.1
0
Iron (Fe), % 0
59.5 to 67.4
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
8.0 to 10
Nickel (Ni), % 0
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 2.7 to 3.4
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.2 to 1.9
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.2
0