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AWS E33-31 vs. CR008A Copper

AWS E33-31 belongs to the iron alloys classification, while CR008A copper belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS E33-31 and the bottom bar is CR008A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
120
Elongation at Break, % 29
15
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 81
43
Tensile Strength: Ultimate (UTS), MPa 810
220

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Melting Completion (Liquidus), °C 1380
1090
Melting Onset (Solidus), °C 1330
1040
Specific Heat Capacity, J/kg-K 480
390
Thermal Expansion, µm/m-K 14
17

Otherwise Unclassified Properties

Base Metal Price, % relative 36
31
Density, g/cm3 7.9
9.0
Embodied Carbon, kg CO2/kg material 6.0
2.6
Embodied Energy, MJ/kg 86
41
Embodied Water, L/kg 260
320

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 28
6.8
Strength to Weight: Bending, points 24
9.0
Thermal Shock Resistance, points 19
7.8

Alloy Composition

Bismuth (Bi), % 0
0 to 0.00050
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 31 to 35
0
Copper (Cu), % 0.4 to 0.8
99.95 to 100
Iron (Fe), % 24.7 to 34.8
0
Lead (Pb), % 0
0 to 0.0050
Manganese (Mn), % 2.5 to 4.0
0
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 30 to 32
0
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.9
0
Silver (Ag), % 0
0 to 0.015
Sulfur (S), % 0 to 0.010
0