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AWS E240 vs. AWS E316

Both AWS E240 and AWS E316 are iron alloys. Both are furnished in the as-welded condition. They have 89% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS E240 and the bottom bar is AWS E316.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
34
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 770
580

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Melting Completion (Liquidus), °C 1390
1440
Melting Onset (Solidus), °C 1350
1390
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 15
14

Otherwise Unclassified Properties

Base Metal Price, % relative 14
20
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.0
4.0
Embodied Energy, MJ/kg 42
55
Embodied Water, L/kg 160
160

Common Calculations

PREN (Pitting Resistance) 22
27
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
20
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 3.9
4.0
Thermal Shock Resistance, points 19
15

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.080
Chromium (Cr), % 17 to 19
17 to 20
Copper (Cu), % 0 to 0.75
0 to 0.75
Iron (Fe), % 58.6 to 68.4
58.6 to 69.5
Manganese (Mn), % 10.5 to 13.5
0.5 to 2.5
Molybdenum (Mo), % 0 to 0.75
2.0 to 3.0
Nickel (Ni), % 4.0 to 6.0
11 to 14
Nitrogen (N), % 0.1 to 0.3
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