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AWS E310Nb vs. ASTM Grade HT Steel

Both AWS E310Nb and ASTM grade HT steel are iron alloys. They have 85% 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 AWS E310Nb and the bottom bar is ASTM grade HT steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
4.6
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 620
500

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Melting Completion (Liquidus), °C 1410
1390
Melting Onset (Solidus), °C 1370
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 14
12
Thermal Expansion, µm/m-K 14
15

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 31
31
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 5.3
5.4
Embodied Energy, MJ/kg 76
76
Embodied Water, L/kg 200
190

Common Calculations

PREN (Pitting Resistance) 28
18
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 3.8
3.2
Thermal Shock Resistance, points 15
12

Alloy Composition

Carbon (C), % 0 to 0.12
0.35 to 0.75
Chromium (Cr), % 25 to 28
15 to 19
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 44.1 to 53.3
38.2 to 51.7
Manganese (Mn), % 1.0 to 2.5
0 to 2.0
Molybdenum (Mo), % 0 to 0.75
0 to 0.5
Nickel (Ni), % 20 to 22
33 to 37
Niobium (Nb), % 0.7 to 1.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.040