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AWS E308H vs. CR020A Copper

AWS E308H belongs to the iron alloys classification, while CR020A copper belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AWS E308H and the bottom bar is CR020A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 40
15
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
43
Tensile Strength: Ultimate (UTS), MPa 620
220

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Melting Completion (Liquidus), °C 1420
1090
Melting Onset (Solidus), °C 1380
1040
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
380
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
100
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
100

Otherwise Unclassified Properties

Base Metal Price, % relative 16
31
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 3.2
2.6
Embodied Energy, MJ/kg 46
41
Embodied Water, L/kg 150
320

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 22
6.8
Strength to Weight: Bending, points 21
9.0
Thermal Diffusivity, mm2/s 4.2
110
Thermal Shock Resistance, points 16
7.8

Alloy Composition

Bismuth (Bi), % 0
0 to 0.00050
Carbon (C), % 0.040 to 0.080
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0 to 0.75
99.95 to 99.999
Iron (Fe), % 62.9 to 72.5
0
Lead (Pb), % 0
0 to 0.0050
Manganese (Mn), % 0.5 to 2.5
0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.040
0.0010 to 0.0060
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
0 to 0.015
Sulfur (S), % 0 to 0.030
0