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C18100 Copper vs. S30435 Stainless Steel

C18100 copper belongs to the copper alloys classification, while S30435 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C18100 copper and the bottom bar is S30435 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 8.3
51
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 80
77
Shear Modulus, GPa 47
76
Shear Strength, MPa 300
370
Tensile Strength: Ultimate (UTS), MPa 510
510
Tensile Strength: Yield (Proof), MPa 460
170

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Maximum Temperature: Mechanical, °C 200
900
Melting Completion (Liquidus), °C 1080
1420
Melting Onset (Solidus), °C 1020
1380
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 320
16
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 81
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 31
14
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.9
Embodied Energy, MJ/kg 43
40
Embodied Water, L/kg 310
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
210
Resilience: Unit (Modulus of Resilience), kJ/m3 900
77
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 16
18
Strength to Weight: Bending, points 16
18
Thermal Diffusivity, mm2/s 94
4.2
Thermal Shock Resistance, points 18
12

Alloy Composition

Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0.4 to 1.2
16 to 18
Copper (Cu), % 98.7 to 99.49
1.5 to 3.0
Iron (Fe), % 0
66.9 to 75.5
Magnesium (Mg), % 0.030 to 0.060
0
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0
7.0 to 9.0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zirconium (Zr), % 0.080 to 0.2
0
Residuals, % 0 to 0.5
0