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AWS E310Mo vs. ASTM A387 Grade 12 Steel

Both AWS E310Mo and ASTM A387 grade 12 steel are iron alloys. They have 50% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS E310Mo and the bottom bar is ASTM A387 grade 12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
25
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 620
470 to 520

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
44
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 28
2.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.1
1.6
Embodied Energy, MJ/kg 71
21
Embodied Water, L/kg 210
51

Common Calculations

PREN (Pitting Resistance) 35
2.7
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
16 to 18
Strength to Weight: Bending, points 20
17 to 18
Thermal Diffusivity, mm2/s 3.7
12
Thermal Shock Resistance, points 15
14 to 15

Alloy Composition

Carbon (C), % 0 to 0.12
0.050 to 0.17
Chromium (Cr), % 25 to 28
0.8 to 1.2
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 42.8 to 52
97 to 98.2
Manganese (Mn), % 1.0 to 2.5
0.4 to 0.65
Molybdenum (Mo), % 2.0 to 3.0
0.45 to 0.6
Nickel (Ni), % 20 to 22
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.75
0.15 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.025