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S21904 Stainless Steel vs. C86500 Bronze

S21904 stainless steel belongs to the iron alloys classification, while C86500 bronze belongs to the copper 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 S21904 stainless steel and the bottom bar is C86500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 17 to 51
25
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 78
40
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
530
Tensile Strength: Yield (Proof), MPa 390 to 910
190

Thermal Properties

Latent Heat of Fusion, J/g 290
170
Maximum Temperature: Mechanical, °C 980
120
Melting Completion (Liquidus), °C 1400
880
Melting Onset (Solidus), °C 1350
860
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 14
86
Thermal Expansion, µm/m-K 17
21

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
2.8
Embodied Energy, MJ/kg 43
48
Embodied Water, L/kg 160
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 310
110
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 2070
180
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 25 to 36
19
Strength to Weight: Bending, points 23 to 29
18
Thermal Diffusivity, mm2/s 3.8
28
Thermal Shock Resistance, points 15 to 21
17

Alloy Composition

Aluminum (Al), % 0
0.5 to 1.5
Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 19 to 21.5
0
Copper (Cu), % 0
55 to 60
Iron (Fe), % 59.5 to 67.4
0.4 to 2.0
Lead (Pb), % 0
0 to 0.4
Manganese (Mn), % 8.0 to 10
0.1 to 1.5
Nickel (Ni), % 5.5 to 7.5
0 to 1.0
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 1.0
Zinc (Zn), % 0
36 to 42
Residuals, % 0
0 to 1.0