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S31727 Stainless Steel vs. C70260 Copper

S31727 stainless steel belongs to the iron alloys classification, while C70260 copper belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S31727 stainless steel and the bottom bar is C70260 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 40
9.5 to 19
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 78
44
Shear Strength, MPa 430
320 to 450
Tensile Strength: Ultimate (UTS), MPa 630
520 to 760
Tensile Strength: Yield (Proof), MPa 270
410 to 650

Thermal Properties

Latent Heat of Fusion, J/g 290
220
Maximum Temperature: Mechanical, °C 1010
200
Melting Completion (Liquidus), °C 1440
1060
Melting Onset (Solidus), °C 1390
1040
Specific Heat Capacity, J/kg-K 470
390
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 24
31
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 4.7
2.7
Embodied Energy, MJ/kg 64
43
Embodied Water, L/kg 180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
46 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 190
710 to 1810
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 22
16 to 24
Strength to Weight: Bending, points 20
16 to 21
Thermal Shock Resistance, points 14
18 to 27

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 19
0
Copper (Cu), % 2.8 to 4.0
95.8 to 98.8
Iron (Fe), % 53.7 to 61.3
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
1.0 to 3.0
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0 to 1.0
0.2 to 0.7
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.5