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AWS E209 vs. AWS E120C-K4

Both AWS E209 and AWS E120C-K4 are iron alloys. Both are furnished in the as-welded condition. They have 62% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS E209 and the bottom bar is AWS E120C-K4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
17
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 770
950

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 14
13

Otherwise Unclassified Properties

Base Metal Price, % relative 21
3.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
1.7
Embodied Energy, MJ/kg 63
23
Embodied Water, L/kg 180
54

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
34
Strength to Weight: Bending, points 24
27
Thermal Shock Resistance, points 19
28

Alloy Composition


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Carbon (C), % 0 to 0.060
0 to 0.15
Chromium (Cr), % 20.5 to 24
0.15 to 0.65
Copper (Cu), % 0 to 0.75
0 to 0.35
Iron (Fe), % 51.5 to 64.3
92.1 to 98.4
Manganese (Mn), % 4.0 to 7.0
0.75 to 2.3
Molybdenum (Mo), % 1.5 to 3.0
0.25 to 0.65
Nickel (Ni), % 9.5 to 12
0.5 to 2.5
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0.1 to 0.3
0 to 0.030
Residuals, % 0
0 to 0.5