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AWS E385 vs. ASTM A372 Grade A Steel

Both AWS E385 and ASTM A372 grade A steel are iron alloys. They have 47% of their average alloy composition in common. There are 24 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 E385 and the bottom bar is ASTM A372 grade A steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
22
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 580
500

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 14
52
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 31
1.8
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.8
1.4
Embodied Energy, MJ/kg 79
18
Embodied Water, L/kg 200
45

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
18
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 3.6
14
Thermal Shock Resistance, points 15
16

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.3
Chromium (Cr), % 19.5 to 21.5
0
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 41.8 to 50.1
98.3 to 99.85
Manganese (Mn), % 1.0 to 2.5
0 to 1.0
Molybdenum (Mo), % 4.2 to 5.2
0
Nickel (Ni), % 24 to 26
0
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0 to 0.9
0.15 to 0.35
Sulfur (S), % 0 to 0.020
0 to 0.010