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AWS E309L vs. AWS E310

Both AWS E309L and AWS E310 are iron alloys. Both are furnished in the as-welded condition. They have 88% of their average alloy composition in common.

For each property being compared, the top bar is AWS E309L and the bottom bar is AWS E310.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
34
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 580
620

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1370
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 14
14

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 20
26
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.7
4.6
Embodied Energy, MJ/kg 52
65
Embodied Water, L/kg 180
200

Common Calculations

PREN (Pitting Resistance) 25
28
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
22
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 4.0
3.7
Thermal Shock Resistance, points 15
15

Alloy Composition

Carbon (C), % 0 to 0.040
0.080 to 0.2
Chromium (Cr), % 22 to 25
25 to 28
Copper (Cu), % 0 to 0.75
0 to 0.75
Iron (Fe), % 55.9 to 65.5
44.5 to 53.9
Manganese (Mn), % 0.5 to 2.5
1.0 to 2.5
Molybdenum (Mo), % 0 to 0.75
0 to 0.75
Nickel (Ni), % 12 to 14
20 to 22.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030