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AWS E309Nb vs. C12900 Copper

AWS E309Nb belongs to the iron alloys classification, while C12900 copper belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS E309Nb and the bottom bar is C12900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 34
2.8 to 50
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 78
43
Tensile Strength: Ultimate (UTS), MPa 620
220 to 420

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Melting Completion (Liquidus), °C 1420
1080
Melting Onset (Solidus), °C 1380
1030
Specific Heat Capacity, J/kg-K 480
390
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
98

Otherwise Unclassified Properties

Base Metal Price, % relative 25
32
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 4.4
2.6
Embodied Energy, MJ/kg 64
41
Embodied Water, L/kg 180
330

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 to 13
Strength to Weight: Bending, points 21
9.1 to 14
Thermal Diffusivity, mm2/s 4.0
110
Thermal Shock Resistance, points 16
7.8 to 15

Alloy Composition

Antimony (Sb), % 0
0 to 0.0030
Arsenic (As), % 0
0 to 0.012
Bismuth (Bi), % 0
0 to 0.0030
Carbon (C), % 0 to 0.12
0
Chromium (Cr), % 22 to 25
0
Copper (Cu), % 0 to 0.75
99.88 to 100
Iron (Fe), % 54.8 to 64.8
0
Lead (Pb), % 0
0 to 0.0040
Manganese (Mn), % 0.5 to 2.5
0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 12 to 14
0 to 0.050
Niobium (Nb), % 0.7 to 1.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
0 to 0.054
Sulfur (S), % 0 to 0.030
0
Tellurium (Te), % 0
0 to 0.025