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C18700 Copper vs. EN 1.3967 Stainless Steel

C18700 copper belongs to the copper alloys classification, while EN 1.3967 stainless steel belongs to the iron alloys. There are 24 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 C18700 copper and the bottom bar is EN 1.3967 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 9.0 to 9.6
22
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
79
Tensile Strength: Ultimate (UTS), MPa 290 to 330
690
Tensile Strength: Yield (Proof), MPa 230 to 250
350

Thermal Properties

Latent Heat of Fusion, J/g 210
300
Maximum Temperature: Mechanical, °C 200
1070
Melting Completion (Liquidus), °C 1080
1430
Melting Onset (Solidus), °C 950
1380
Specific Heat Capacity, J/kg-K 380
470
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 30
25
Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 2.6
4.8
Embodied Energy, MJ/kg 41
66
Embodied Water, L/kg 310
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
130
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
310
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 9.0 to 10
24
Strength to Weight: Bending, points 11 to 12
22
Thermal Shock Resistance, points 10 to 12
15

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
20 to 21.5
Copper (Cu), % 98 to 99.2
0
Iron (Fe), % 0
50.3 to 57.8
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
4.0 to 6.0
Molybdenum (Mo), % 0
3.0 to 3.5
Nickel (Ni), % 0
15 to 17
Niobium (Nb), % 0
0 to 0.25
Nitrogen (N), % 0
0.2 to 0.35
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Residuals, % 0 to 0.5
0