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S40975 Stainless Steel vs. CC140C Copper

S40975 stainless steel belongs to the iron alloys classification, while CC140C copper belongs to the copper alloys. There are 29 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 S40975 stainless steel and the bottom bar is CC140C copper.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
110
Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 22
11
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 75
44
Tensile Strength: Ultimate (UTS), MPa 460
340
Tensile Strength: Yield (Proof), MPa 310
230

Thermal Properties

Latent Heat of Fusion, J/g 270
210
Maximum Temperature: Mechanical, °C 710
200
Melting Completion (Liquidus), °C 1450
1100
Melting Onset (Solidus), °C 1400
1040
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 26
310
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
77
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
78

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
31
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 2.0
2.6
Embodied Energy, MJ/kg 28
41
Embodied Water, L/kg 95
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
34
Resilience: Unit (Modulus of Resilience), kJ/m3 250
220
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 17
10
Strength to Weight: Bending, points 17
12
Thermal Diffusivity, mm2/s 7.0
89
Thermal Shock Resistance, points 17
12

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 10.5 to 11.7
0.4 to 1.2
Copper (Cu), % 0
98.8 to 99.6
Iron (Fe), % 84.4 to 89
0
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 0.5 to 1.0
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0 to 0.75
0