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AWS E383 vs. ASTM Grade HT Steel

Both AWS E383 and ASTM grade HT steel are iron alloys. They have 84% 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 E383 and the bottom bar is ASTM grade HT steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
4.6
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 580
500

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Melting Completion (Liquidus), °C 1420
1390
Melting Onset (Solidus), °C 1370
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
12
Thermal Expansion, µm/m-K 14
15

Otherwise Unclassified Properties

Base Metal Price, % relative 37
31
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 6.4
5.4
Embodied Energy, MJ/kg 89
76
Embodied Water, L/kg 240
190

Common Calculations

PREN (Pitting Resistance) 40
18
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
18
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 3.1
3.2
Thermal Shock Resistance, points 15
12

Alloy Composition

Carbon (C), % 0 to 0.030
0.35 to 0.75
Chromium (Cr), % 26.5 to 29
15 to 19
Copper (Cu), % 0.6 to 1.5
0
Iron (Fe), % 28.8 to 39.2
38.2 to 51.7
Manganese (Mn), % 0.5 to 2.5
0 to 2.0
Molybdenum (Mo), % 3.2 to 4.2
0 to 0.5
Nickel (Ni), % 30 to 33
33 to 37
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.9
0 to 2.5
Sulfur (S), % 0 to 0.020
0 to 0.040