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ASTM Grade HF Steel vs. AWS ER80S-D2

Both ASTM grade HF steel and AWS ER80S-D2 are iron alloys. They have 69% 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 ASTM grade HF steel and the bottom bar is AWS ER80S-D2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
19
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 550
620
Tensile Strength: Yield (Proof), MPa 270
540

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
47
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 17
2.6
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.2
1.6
Embodied Energy, MJ/kg 46
21
Embodied Water, L/kg 150
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180
770
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
22
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 4.2
13
Thermal Shock Resistance, points 12
18

Alloy Composition


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Carbon (C), % 0.2 to 0.4
0.070 to 0.12
Chromium (Cr), % 18 to 23
0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 60 to 73.8
95.2 to 97.4
Manganese (Mn), % 0 to 2.0
1.6 to 2.1
Molybdenum (Mo), % 0 to 0.5
0.4 to 0.6
Nickel (Ni), % 8.0 to 12
0 to 0.15
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.0
0.5 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.025
Residuals, % 0
0 to 0.5