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AWS ER70S-A1 vs. SAE-AISI 1008 Steel

Both AWS ER70S-A1 and SAE-AISI 1008 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AWS ER70S-A1 and the bottom bar is SAE-AISI 1008 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
22 to 33
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 590
330 to 370
Tensile Strength: Yield (Proof), MPa 450
190 to 310

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
62
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
18
Embodied Water, L/kg 48
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
78 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 540
92 to 260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
12 to 13
Strength to Weight: Bending, points 20
13 to 15
Thermal Diffusivity, mm2/s 14
17
Thermal Shock Resistance, points 17
10 to 12

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.1
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 96.1 to 99.3
99.31 to 99.7
Manganese (Mn), % 0 to 1.3
0.3 to 0.5
Molybdenum (Mo), % 0.4 to 0.65
0
Nickel (Ni), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.3 to 0.7
0
Sulfur (S), % 0 to 0.025
0 to 0.050
Residuals, % 0 to 0.5
0