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C18200 Copper vs. S30435 Stainless Steel

C18200 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 C18200 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, % 11 to 40
51
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 65 to 82
77
Shear Modulus, GPa 44
76
Shear Strength, MPa 210 to 320
370
Tensile Strength: Ultimate (UTS), MPa 310 to 530
510
Tensile Strength: Yield (Proof), MPa 97 to 450
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 1070
1380
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 320
16
Thermal Expansion, µm/m-K 18
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 2.6
2.9
Embodied Energy, MJ/kg 41
40
Embodied Water, L/kg 310
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43 to 96
210
Resilience: Unit (Modulus of Resilience), kJ/m3 40 to 860
77
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 9.6 to 16
18
Strength to Weight: Bending, points 11 to 16
18
Thermal Diffusivity, mm2/s 93
4.2
Thermal Shock Resistance, points 11 to 18
12

Alloy Composition

Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0.6 to 1.2
16 to 18
Copper (Cu), % 98.6 to 99.4
1.5 to 3.0
Iron (Fe), % 0 to 0.1
66.9 to 75.5
Lead (Pb), % 0 to 0.050
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 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.030