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AWS E312 vs. AWS ER120S-1

Both AWS E312 and AWS ER120S-1 are iron alloys. Both are furnished in the as-welded condition. They have 63% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS E312 and the bottom bar is AWS ER120S-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 25
17
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 740
930

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 20
4.2
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.6
1.9
Embodied Energy, MJ/kg 52
25
Embodied Water, L/kg 200
56

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
33
Strength to Weight: Bending, points 24
27
Thermal Shock Resistance, points 18
27

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0 to 0.15
0 to 0.1
Chromium (Cr), % 28 to 32
0 to 0.6
Copper (Cu), % 0 to 0.75
0 to 0.25
Iron (Fe), % 52.3 to 63.5
92.4 to 96.1
Manganese (Mn), % 0.5 to 2.5
1.4 to 1.8
Molybdenum (Mo), % 0 to 0.75
0.3 to 0.65
Nickel (Ni), % 8.0 to 10.5
2.0 to 2.8
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.0
0.25 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0
0 to 0.030
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.5