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C99300 Copper vs. S41425 Stainless Steel

C99300 copper belongs to the copper alloys classification, while S41425 stainless steel belongs to the iron 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 C99300 copper and the bottom bar is S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
280
Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 2.0
17
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 46
77
Tensile Strength: Ultimate (UTS), MPa 660
920
Tensile Strength: Yield (Proof), MPa 380
750

Thermal Properties

Latent Heat of Fusion, J/g 240
280
Maximum Temperature: Mechanical, °C 250
810
Melting Completion (Liquidus), °C 1080
1450
Melting Onset (Solidus), °C 1070
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 43
16
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.8
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 35
13
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 4.5
2.9
Embodied Energy, MJ/kg 70
40
Embodied Water, L/kg 400
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
150
Resilience: Unit (Modulus of Resilience), kJ/m3 590
1420
Stiffness to Weight: Axial, points 8.3
14
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 22
33
Strength to Weight: Bending, points 20
27
Thermal Diffusivity, mm2/s 12
4.4
Thermal Shock Resistance, points 22
33

Alloy Composition

Aluminum (Al), % 10.7 to 11.5
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
12 to 15
Cobalt (Co), % 1.0 to 2.0
0
Copper (Cu), % 68.6 to 74.4
0 to 0.3
Iron (Fe), % 0.4 to 1.0
74 to 81.9
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0
0.5 to 1.0
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 13.5 to 16.5
4.0 to 7.0
Nitrogen (N), % 0
0.060 to 0.12
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.020
0 to 0.5
Sulfur (S), % 0
0 to 0.0050
Tin (Sn), % 0 to 0.050
0
Residuals, % 0 to 0.3
0