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CR018A Copper vs. S17700 Stainless Steel

CR018A copper belongs to the copper alloys classification, while S17700 stainless steel belongs to the iron 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 CR018A copper and the bottom bar is S17700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 15
1.0 to 23
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
76
Tensile Strength: Ultimate (UTS), MPa 220
1180 to 1650
Tensile Strength: Yield (Proof), MPa 130
430 to 1210

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 200
890
Melting Completion (Liquidus), °C 1090
1440
Melting Onset (Solidus), °C 1040
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 390
15
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 100
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 33
13
Density, g/cm3 9.0
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 42
40
Embodied Water, L/kg 360
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
15 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 76
460 to 3750
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 6.8
42 to 59
Strength to Weight: Bending, points 9.0
32 to 40
Thermal Diffusivity, mm2/s 110
4.1
Thermal Shock Resistance, points 7.8
39 to 54

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.5
Bismuth (Bi), % 0 to 0.00050
0
Carbon (C), % 0
0 to 0.090
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 99.914 to 99.94
0
Iron (Fe), % 0
70.5 to 76.8
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
6.5 to 7.8
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0.060 to 0.080
0
Sulfur (S), % 0
0 to 0.030