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AWS E309L vs. C72700 Copper-nickel

AWS E309L belongs to the iron alloys classification, while C72700 copper-nickel 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 E309L and the bottom bar is C72700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 34
4.0 to 36
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 79
44
Tensile Strength: Ultimate (UTS), MPa 580
460 to 1070

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Melting Completion (Liquidus), °C 1420
1100
Melting Onset (Solidus), °C 1370
930
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 15
54
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
11
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
11

Otherwise Unclassified Properties

Base Metal Price, % relative 20
36
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 3.7
4.0
Embodied Energy, MJ/kg 52
62
Embodied Water, L/kg 180
350

Common Calculations

Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 21
14 to 34
Strength to Weight: Bending, points 20
15 to 26
Thermal Diffusivity, mm2/s 4.0
16
Thermal Shock Resistance, points 15
16 to 38

Alloy Composition

Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 22 to 25
0
Copper (Cu), % 0 to 0.75
82.1 to 86
Iron (Fe), % 55.9 to 65.5
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0.5 to 2.5
0.050 to 0.3
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 12 to 14
8.5 to 9.5
Niobium (Nb), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
5.5 to 6.5
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.3