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SAE-AISI 1070 Steel vs. AWS ER80S-B8

Both SAE-AISI 1070 steel and AWS ER80S-B8 are iron alloys. They have 89% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1070 steel and the bottom bar is AWS ER80S-B8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10 to 13
19
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
75
Tensile Strength: Ultimate (UTS), MPa 640 to 760
630
Tensile Strength: Yield (Proof), MPa 420 to 560
530

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
26
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 12
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
6.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.0
Embodied Energy, MJ/kg 19
28
Embodied Water, L/kg 46
89

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59 to 86
120
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 850
720
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 27
22
Strength to Weight: Bending, points 21 to 24
21
Thermal Diffusivity, mm2/s 14
6.9
Thermal Shock Resistance, points 21 to 25
17

Alloy Composition

Carbon (C), % 0.65 to 0.75
0 to 0.1
Chromium (Cr), % 0
8.0 to 10.5
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 98.3 to 98.8
85.6 to 90.8
Manganese (Mn), % 0.6 to 0.9
0.4 to 0.7
Molybdenum (Mo), % 0
0.8 to 1.2
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.025
Residuals, % 0
0 to 0.5