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S21904 Stainless Steel vs. C22000 Bronze

S21904 stainless steel belongs to the iron alloys classification, while C22000 bronze belongs to the copper 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 S21904 stainless steel and the bottom bar is C22000 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 17 to 51
1.9 to 45
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
42
Shear Strength, MPa 510 to 620
200 to 300
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
260 to 520
Tensile Strength: Yield (Proof), MPa 390 to 910
69 to 500

Thermal Properties

Latent Heat of Fusion, J/g 290
200
Maximum Temperature: Mechanical, °C 980
180
Melting Completion (Liquidus), °C 1400
1040
Melting Onset (Solidus), °C 1350
1020
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 14
190
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
44
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
45

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
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 310
3.7 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 2070
21 to 1110
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 25 to 36
8.1 to 17
Strength to Weight: Bending, points 23 to 29
10 to 17
Thermal Diffusivity, mm2/s 3.8
56
Thermal Shock Resistance, points 15 to 21
8.8 to 18

Alloy Composition

Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 19 to 21.5
0
Copper (Cu), % 0
89 to 91
Iron (Fe), % 59.5 to 67.4
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 8.0 to 10
0
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
0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
8.7 to 11
Residuals, % 0
0 to 0.2