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S21904 Stainless Steel vs. C67000 Bronze

S21904 stainless steel belongs to the iron alloys classification, while C67000 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S21904 stainless steel and the bottom bar is C67000 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 17 to 51
5.6 to 11
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 78
42
Shear Strength, MPa 510 to 620
390 to 510
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
660 to 880
Tensile Strength: Yield (Proof), MPa 390 to 910
350 to 540

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Maximum Temperature: Mechanical, °C 980
160
Melting Completion (Liquidus), °C 1400
900
Melting Onset (Solidus), °C 1350
850
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 14
99
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
22
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
25

Otherwise Unclassified Properties

Base Metal Price, % relative 15
23
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.0
2.9
Embodied Energy, MJ/kg 43
49
Embodied Water, L/kg 160
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 310
43 to 62
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 2070
560 to 1290
Stiffness to Weight: Axial, points 14
7.8
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 25 to 36
23 to 31
Strength to Weight: Bending, points 23 to 29
21 to 26
Thermal Diffusivity, mm2/s 3.8
30
Thermal Shock Resistance, points 15 to 21
21 to 29

Alloy Composition

Aluminum (Al), % 0
3.0 to 6.0
Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 19 to 21.5
0
Copper (Cu), % 0
63 to 68
Iron (Fe), % 59.5 to 67.4
2.0 to 4.0
Lead (Pb), % 0
0 to 0.2
Manganese (Mn), % 8.0 to 10
2.5 to 5.0
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
Tin (Sn), % 0
0 to 0.5
Zinc (Zn), % 0
21.8 to 32.5
Residuals, % 0
0 to 0.5