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ASTM A372 Grade L Steel vs. AWS BAg-7

ASTM A372 grade L steel belongs to the iron alloys classification, while AWS BAg-7 belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is ASTM A372 grade L steel and the bottom bar is AWS BAg-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
83
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
31
Tensile Strength: Ultimate (UTS), MPa 1160
150

Thermal Properties

Latent Heat of Fusion, J/g 250
130
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1420
620
Specific Heat Capacity, J/kg-K 470
290
Thermal Expansion, µm/m-K 13
20

Otherwise Unclassified Properties

Density, g/cm3 7.8
9.3
Embodied Carbon, kg CO2/kg material 1.7
55
Embodied Energy, MJ/kg 22
860

Common Calculations

Stiffness to Weight: Axial, points 13
4.9
Stiffness to Weight: Bending, points 24
16
Strength to Weight: Axial, points 41
4.5
Strength to Weight: Bending, points 31
6.7
Thermal Shock Resistance, points 34
6.4

Alloy Composition


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Carbon (C), % 0.38 to 0.43
0
Chromium (Cr), % 0.7 to 0.9
0
Copper (Cu), % 0
21 to 23
Iron (Fe), % 95.2 to 96.3
0
Manganese (Mn), % 0.6 to 0.8
0
Molybdenum (Mo), % 0.2 to 0.3
0
Nickel (Ni), % 1.7 to 2.0
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0.15 to 0.35
0
Silver (Ag), % 0
55 to 57
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
4.5 to 5.5
Zinc (Zn), % 0
15 to 19
Residuals, % 0
0 to 0.15