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AISI 431 Stainless Steel vs. C82000 Copper

AISI 431 stainless steel belongs to the iron alloys classification, while C82000 copper belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AISI 431 stainless steel and the bottom bar is C82000 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 15 to 17
8.0 to 20
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
45
Tensile Strength: Ultimate (UTS), MPa 890 to 1380
350 to 690
Tensile Strength: Yield (Proof), MPa 710 to 1040
140 to 520

Thermal Properties

Latent Heat of Fusion, J/g 280
220
Maximum Temperature: Mechanical, °C 850
220
Melting Completion (Liquidus), °C 1510
1090
Melting Onset (Solidus), °C 1450
970
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 26
260
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
45
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
46

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
60
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 2.2
5.0
Embodied Energy, MJ/kg 31
77
Embodied Water, L/kg 120
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
51 to 55
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 2770
80 to 1120
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 32 to 50
11 to 22
Strength to Weight: Bending, points 27 to 36
12 to 20
Thermal Diffusivity, mm2/s 7.0
76
Thermal Shock Resistance, points 28 to 43
12 to 24

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Beryllium (Be), % 0
0.45 to 0.8
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 15 to 17
0 to 0.1
Cobalt (Co), % 0
2.2 to 2.7
Copper (Cu), % 0
95.2 to 97.4
Iron (Fe), % 78.2 to 83.8
0 to 0.1
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 1.3 to 2.5
0 to 0.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.15
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.5