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EN 1.4729 Stainless Steel vs. CR012A Copper

EN 1.4729 stainless steel belongs to the iron alloys classification, while CR012A copper belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.4729 stainless steel and the bottom bar is CR012A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 15
15
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 75
43

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Maximum Temperature: Mechanical, °C 850
200
Melting Completion (Liquidus), °C 1420
1090
Melting Onset (Solidus), °C 1380
1040
Specific Heat Capacity, J/kg-K 490
390
Thermal Conductivity, W/m-K 24
390
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
100
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
100

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
33
Density, g/cm3 7.6
9.0
Embodied Carbon, kg CO2/kg material 2.1
2.7
Embodied Energy, MJ/kg 29
42
Embodied Water, L/kg 100
360

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Thermal Diffusivity, mm2/s 6.5
110

Alloy Composition

Bismuth (Bi), % 0
0 to 0.00050
Carbon (C), % 0.3 to 0.5
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
99.85 to 99.94
Iron (Fe), % 80.4 to 86.7
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0
Oxygen (O), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.0 to 2.5
0
Silver (Ag), % 0
0.060 to 0.080
Sulfur (S), % 0 to 0.030
0