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AWS E240 vs. ASTM Grade HL Steel

Both AWS E240 and ASTM grade HL steel are iron alloys. They have 72% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS E240 and the bottom bar is ASTM grade HL steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
11
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 770
500

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Melting Completion (Liquidus), °C 1390
1390
Melting Onset (Solidus), °C 1350
1340
Specific Heat Capacity, J/kg-K 480
490
Thermal Expansion, µm/m-K 15
17

Otherwise Unclassified Properties

Base Metal Price, % relative 14
27
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.0
4.5
Embodied Energy, MJ/kg 42
65
Embodied Water, L/kg 160
210

Common Calculations

PREN (Pitting Resistance) 22
31
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
18
Strength to Weight: Bending, points 24
18
Thermal Shock Resistance, points 19
11

Alloy Composition

Carbon (C), % 0 to 0.060
0.2 to 0.6
Chromium (Cr), % 17 to 19
28 to 32
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 58.6 to 68.4
40.8 to 53.8
Manganese (Mn), % 10.5 to 13.5
0 to 2.0
Molybdenum (Mo), % 0 to 0.75
0 to 0.5
Nickel (Ni), % 4.0 to 6.0
18 to 22
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 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040