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S40975 Stainless Steel vs. CR018A Copper

S40975 stainless steel belongs to the iron alloys classification, while CR018A copper belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S40975 stainless steel and the bottom bar is CR018A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 22
15
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 75
43
Tensile Strength: Ultimate (UTS), MPa 460
220
Tensile Strength: Yield (Proof), MPa 310
130

Thermal Properties

Latent Heat of Fusion, J/g 270
210
Maximum Temperature: Mechanical, °C 710
200
Melting Completion (Liquidus), °C 1450
1090
Melting Onset (Solidus), °C 1400
1040
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 26
390
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
100
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
100

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
33
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 2.0
2.7
Embodied Energy, MJ/kg 28
42
Embodied Water, L/kg 95
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
29
Resilience: Unit (Modulus of Resilience), kJ/m3 250
76
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 17
6.8
Strength to Weight: Bending, points 17
9.0
Thermal Diffusivity, mm2/s 7.0
110
Thermal Shock Resistance, points 17
7.8

Alloy Composition

Bismuth (Bi), % 0
0 to 0.00050
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 10.5 to 11.7
0
Copper (Cu), % 0
99.914 to 99.94
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
Silver (Ag), % 0
0.060 to 0.080
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0 to 0.75
0