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AWS E310H vs. AWS E349

Both AWS E310H and AWS E349 are iron alloys. Both are furnished in the as-welded condition. They have 80% of their average alloy composition in common.

For each property being compared, the top bar is AWS E310H and the bottom bar is AWS E349.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
29
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 690
770

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Melting Completion (Liquidus), °C 1400
1470
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
15
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
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 26
25
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.6
4.9
Embodied Energy, MJ/kg 65
72
Embodied Water, L/kg 200
150

Common Calculations

PREN (Pitting Resistance) 28
24
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
27
Strength to Weight: Bending, points 22
24
Thermal Diffusivity, mm2/s 3.8
4.1
Thermal Shock Resistance, points 17
20

Alloy Composition

Carbon (C), % 0.35 to 0.45
0 to 0.13
Chromium (Cr), % 25 to 28
18 to 21
Copper (Cu), % 0 to 0.75
0 to 0.75
Iron (Fe), % 44.2 to 53.7
60.5 to 71.1
Manganese (Mn), % 1.0 to 2.5
0.5 to 2.5
Molybdenum (Mo), % 0 to 0.75
0.35 to 0.65
Nickel (Ni), % 20 to 22.5
8.0 to 10
Niobium (Nb), % 0
0.75 to 1.2
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
Titanium (Ti), % 0
0 to 0.15
Tungsten (W), % 0
1.3 to 1.8
Vanadium (V), % 0
0.1 to 0.3