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AISI 431 Stainless Steel vs. C14200 Copper

AISI 431 stainless steel belongs to the iron alloys classification, while C14200 copper belongs to the copper alloys. There are 30 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 C14200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 15 to 17
8.0 to 45
Fatigue Strength, MPa 430 to 610
76 to 130
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
43
Shear Strength, MPa 550 to 840
150 to 200
Tensile Strength: Ultimate (UTS), MPa 890 to 1380
220 to 370
Tensile Strength: Yield (Proof), MPa 710 to 1040
75 to 340

Thermal Properties

Latent Heat of Fusion, J/g 280
210
Maximum Temperature: Mechanical, °C 850
200
Melting Completion (Liquidus), °C 1510
1080
Melting Onset (Solidus), °C 1450
1030
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 26
190
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
45

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
31
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 2.2
2.6
Embodied Energy, MJ/kg 31
41
Embodied Water, L/kg 120
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
29 to 83
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 2770
24 to 500
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 32 to 50
6.8 to 11
Strength to Weight: Bending, points 27 to 36
9.1 to 13
Thermal Diffusivity, mm2/s 7.0
56
Thermal Shock Resistance, points 28 to 43
7.9 to 13

Alloy Composition

Arsenic (As), % 0
0.15 to 0.5
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 0
99.4 to 99.835
Iron (Fe), % 78.2 to 83.8
0
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 1.3 to 2.5
0
Phosphorus (P), % 0 to 0.040
0.015 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0