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AWS E310 vs. AWS E2209

Both AWS E310 and AWS E2209 are iron alloys. Both are furnished in the as-welded condition. They have 84% of their average alloy composition in common.

For each property being compared, the top bar is AWS E310 and the bottom bar is AWS E2209.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
23
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 620
770

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1360
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 14
16
Thermal Expansion, µm/m-K 14
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 26
20
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.6
4.0
Embodied Energy, MJ/kg 65
55
Embodied Water, L/kg 200
170

Common Calculations

PREN (Pitting Resistance) 28
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
27
Strength to Weight: Bending, points 20
24
Thermal Diffusivity, mm2/s 3.7
4.3
Thermal Shock Resistance, points 15
20

Alloy Composition

Carbon (C), % 0.080 to 0.2
0 to 0.040
Chromium (Cr), % 25 to 28
21.5 to 23.5
Copper (Cu), % 0 to 0.75
0 to 0.75
Iron (Fe), % 44.5 to 53.9
58.4 to 66.9
Manganese (Mn), % 1.0 to 2.5
0.5 to 2.0
Molybdenum (Mo), % 0 to 0.75
2.5 to 3.5
Nickel (Ni), % 20 to 22.5
8.5 to 10.5
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030