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ASTM Grade HI Steel vs. AWS E330H

Both ASTM grade HI steel and AWS E330H are iron alloys. They have 80% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HI steel and the bottom bar is AWS E330H.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
11
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 550
690

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Melting Completion (Liquidus), °C 1400
1400
Melting Onset (Solidus), °C 1350
1350
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 23
30
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 4.1
5.4
Embodied Energy, MJ/kg 59
76
Embodied Water, L/kg 200
180

Common Calculations

PREN (Pitting Resistance) 29
17
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
24
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 3.9
3.2
Thermal Shock Resistance, points 12
19

Alloy Composition

Carbon (C), % 0.2 to 0.5
0.35 to 0.45
Chromium (Cr), % 26 to 30
14 to 17
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 46.9 to 59.8
40.5 to 51.7
Manganese (Mn), % 0 to 2.0
1.0 to 2.5
Molybdenum (Mo), % 0 to 0.5
0 to 0.75
Nickel (Ni), % 14 to 18
33 to 37
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030