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S21904 Stainless Steel vs. C66100 Bronze

S21904 stainless steel belongs to the iron alloys classification, while C66100 bronze belongs to the copper alloys. There are 27 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 S21904 stainless steel and the bottom bar is C66100 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 17 to 51
8.0 to 40
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 78
43
Shear Strength, MPa 510 to 620
280 to 460
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
410 to 790
Tensile Strength: Yield (Proof), MPa 390 to 910
120 to 430

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 980
200
Melting Completion (Liquidus), °C 1400
1050
Melting Onset (Solidus), °C 1350
1000
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 14
34
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 15
29
Density, g/cm3 7.7
8.7
Embodied Carbon, kg CO2/kg material 3.0
2.6
Embodied Energy, MJ/kg 43
42
Embodied Water, L/kg 160
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 310
53 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 2070
60 to 790
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 25 to 36
13 to 25
Strength to Weight: Bending, points 23 to 29
14 to 22
Thermal Diffusivity, mm2/s 3.8
9.7
Thermal Shock Resistance, points 15 to 21
15 to 29

Alloy Composition

Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 19 to 21.5
0
Copper (Cu), % 0
92 to 97
Iron (Fe), % 59.5 to 67.4
0 to 0.25
Lead (Pb), % 0
0.2 to 0.8
Manganese (Mn), % 8.0 to 10
0 to 1.5
Nickel (Ni), % 5.5 to 7.5
0
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
2.8 to 3.5
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 1.5
Residuals, % 0
0 to 0.5