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AWS ER70S-A1 vs. ASTM Grade HL Steel

Both AWS ER70S-A1 and ASTM grade HL steel are iron alloys. They have 49% of their average alloy composition in common. There are 23 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 ER70S-A1 and the bottom bar is ASTM grade HL steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
11
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 590
500
Tensile Strength: Yield (Proof), MPa 450
270

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
490
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
27
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
4.5
Embodied Energy, MJ/kg 20
65
Embodied Water, L/kg 48
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
48
Resilience: Unit (Modulus of Resilience), kJ/m3 540
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
18
Strength to Weight: Bending, points 20
18
Thermal Shock Resistance, points 17
11

Alloy Composition

Carbon (C), % 0 to 0.12
0.2 to 0.6
Chromium (Cr), % 0
28 to 32
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 96.1 to 99.3
40.8 to 53.8
Manganese (Mn), % 0 to 1.3
0 to 2.0
Molybdenum (Mo), % 0.4 to 0.65
0 to 0.5
Nickel (Ni), % 0 to 0.2
18 to 22
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.3 to 0.7
0 to 2.0
Sulfur (S), % 0 to 0.025
0 to 0.040
Residuals, % 0 to 0.5
0