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AWS E309LMo vs. C18700 Copper

AWS E309LMo belongs to the iron alloys classification, while C18700 copper belongs to the copper alloys. There are 24 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 AWS E309LMo and the bottom bar is C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 34
9.0 to 9.6
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 79
43
Tensile Strength: Ultimate (UTS), MPa 580
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Melting Completion (Liquidus), °C 1430
1080
Melting Onset (Solidus), °C 1390
950
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 15
380
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
98
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
99

Otherwise Unclassified Properties

Base Metal Price, % relative 22
30
Density, g/cm3 7.9
9.0
Embodied Carbon, kg CO2/kg material 4.2
2.6
Embodied Energy, MJ/kg 59
41
Embodied Water, L/kg 180
310

Common Calculations

Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 21
9.0 to 10
Strength to Weight: Bending, points 20
11 to 12
Thermal Diffusivity, mm2/s 3.9
110
Thermal Shock Resistance, points 15
10 to 12

Alloy Composition

Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 22 to 25
0
Copper (Cu), % 0 to 0.75
98 to 99.2
Iron (Fe), % 53.6 to 63.5
0
Lead (Pb), % 0
0.8 to 1.5
Manganese (Mn), % 0.5 to 2.5
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 12 to 14
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.5