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S17700 Stainless Steel vs. C55281 Copper

S17700 stainless steel belongs to the iron alloys classification, while C55281 copper belongs to the copper alloys. There are 18 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is S17700 stainless steel and the bottom bar is C55281 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 76
40
Tensile Strength: Ultimate (UTS), MPa 1180 to 1650
190

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Maximum Temperature: Mechanical, °C 890
200
Melting Completion (Liquidus), °C 1440
810
Melting Onset (Solidus), °C 1400
640
Specific Heat Capacity, J/kg-K 480
400
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Density, g/cm3 7.7
8.7
Embodied Carbon, kg CO2/kg material 2.8
7.0
Embodied Energy, MJ/kg 40
110

Common Calculations

Stiffness to Weight: Axial, points 14
6.9
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 42 to 59
6.1
Strength to Weight: Bending, points 32 to 40
8.5
Thermal Shock Resistance, points 39 to 54
7.7

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
0
Carbon (C), % 0 to 0.090
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
88.5 to 89.4
Iron (Fe), % 70.5 to 76.8
0
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 6.5 to 7.8
0
Phosphorus (P), % 0 to 0.040
5.8 to 6.2
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
4.8 to 5.2
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.15