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AWS E33-31 vs. ASTM Grade HT Steel

Both AWS E33-31 and ASTM grade HT steel are iron alloys. They have 79% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS E33-31 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, % 29
4.6
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
76
Tensile Strength: Ultimate (UTS), MPa 810
500

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Melting Completion (Liquidus), °C 1380
1390
Melting Onset (Solidus), °C 1330
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 14
15

Otherwise Unclassified Properties

Base Metal Price, % relative 36
31
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 6.0
5.4
Embodied Energy, MJ/kg 86
76
Embodied Water, L/kg 260
190

Common Calculations

PREN (Pitting Resistance) 44
18
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
18
Strength to Weight: Bending, points 24
18
Thermal Shock Resistance, points 19
12

Alloy Composition

Carbon (C), % 0 to 0.030
0.35 to 0.75
Chromium (Cr), % 31 to 35
15 to 19
Copper (Cu), % 0.4 to 0.8
0
Iron (Fe), % 24.7 to 34.8
38.2 to 51.7
Manganese (Mn), % 2.5 to 4.0
0 to 2.0
Molybdenum (Mo), % 1.0 to 2.0
0 to 0.5
Nickel (Ni), % 30 to 32
33 to 37
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.9
0 to 2.5
Sulfur (S), % 0 to 0.010
0 to 0.040