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AWS E316 vs. AWS E347

Both AWS E316 and AWS E347 are iron alloys. Both are furnished in the as-welded condition. They have a very high 95% of their average alloy composition in common.

For each property being compared, the top bar is AWS E316 and the bottom bar is AWS E347.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
34
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 580
580

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 14
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 20
19
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.0
3.7
Embodied Energy, MJ/kg 55
53
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 27
21
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
21
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 4.0
4.2
Thermal Shock Resistance, points 15
15

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 17 to 20
18 to 21
Copper (Cu), % 0 to 0.75
0 to 0.75
Iron (Fe), % 58.6 to 69.5
61.9 to 72.5
Manganese (Mn), % 0.5 to 2.5
0.5 to 2.5
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.75
Nickel (Ni), % 11 to 14
9.0 to 11
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030