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CR009A Copper vs. AISI 431 Stainless Steel

CR009A copper belongs to the copper alloys classification, while AISI 431 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 CR009A copper and the bottom bar is AISI 431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 15
15 to 17
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
77
Tensile Strength: Ultimate (UTS), MPa 230
890 to 1380
Tensile Strength: Yield (Proof), MPa 140
710 to 1040

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Maximum Temperature: Mechanical, °C 200
850
Melting Completion (Liquidus), °C 1090
1510
Melting Onset (Solidus), °C 1040
1450
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 380
26
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 100
3.0

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
140 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 83
1270 to 2770
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 7.1
32 to 50
Strength to Weight: Bending, points 9.3
27 to 36
Thermal Diffusivity, mm2/s 110
7.0
Thermal Shock Resistance, points 8.1
28 to 43

Alloy Composition

Antimony (Sb), % 0 to 0.00040
0
Arsenic (As), % 0 to 0.00050
0
Bismuth (Bi), % 0 to 0.00020
0
Cadmium (Cd), % 0 to 0.00010
0
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 99.99 to 100
0
Iron (Fe), % 0 to 0.0010
78.2 to 83.8
Lead (Pb), % 0 to 0.00050
0
Manganese (Mn), % 0 to 0.00050
0 to 1.0
Nickel (Ni), % 0 to 0.0010
1.3 to 2.5
Phosphorus (P), % 0 to 0.0030
0 to 0.040
Selenium (Se), % 0 to 0.00020
0
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0 to 0.0025
0
Sulfur (S), % 0 to 0.0015
0 to 0.030
Tellurium (Te), % 0 to 0.00020
0
Tin (Sn), % 0 to 0.00020
0
Zinc (Zn), % 0 to 0.00010
0