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S20432 Stainless Steel vs. C10800 Copper

S20432 stainless steel belongs to the iron alloys classification, while C10800 copper belongs to the copper alloys. There are 30 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 S20432 stainless steel and the bottom bar is C10800 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 45
4.0 to 50
Poisson's Ratio 0.28
0.34
Rockwell B Hardness 81
10 to 60
Shear Modulus, GPa 76
43
Shear Strength, MPa 400
150 to 200
Tensile Strength: Ultimate (UTS), MPa 580
220 to 380
Tensile Strength: Yield (Proof), MPa 230
75 to 370

Thermal Properties

Latent Heat of Fusion, J/g 280
210
Maximum Temperature: Mechanical, °C 900
200
Melting Completion (Liquidus), °C 1410
1080
Melting Onset (Solidus), °C 1370
1080
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 15
350
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
92
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
92

Otherwise Unclassified Properties

Base Metal Price, % relative 13
31
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 38
41
Embodied Water, L/kg 140
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
15 to 88
Resilience: Unit (Modulus of Resilience), kJ/m3 140
24 to 600
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 21
6.8 to 12
Strength to Weight: Bending, points 20
9.1 to 13
Thermal Diffusivity, mm2/s 4.0
100
Thermal Shock Resistance, points 13
7.8 to 13

Alloy Composition

Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 17 to 18
0
Copper (Cu), % 2.0 to 3.0
99.95 to 99.995
Iron (Fe), % 66.7 to 74
0
Manganese (Mn), % 3.0 to 5.0
0
Nickel (Ni), % 4.0 to 6.0
0
Nitrogen (N), % 0.050 to 0.2
0
Phosphorus (P), % 0 to 0.045
0.0050 to 0.012
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0