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ASTM Grade HN Steel vs. AWS ENiCrMo-10

ASTM grade HN steel belongs to the iron alloys classification, while AWS ENiCrMo-10 belongs to the nickel alloys. They have 51% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HN steel and the bottom bar is AWS ENiCrMo-10.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 9.0
28
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
84
Tensile Strength: Ultimate (UTS), MPa 500
710

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Melting Completion (Liquidus), °C 1400
1550
Melting Onset (Solidus), °C 1350
1490
Specific Heat Capacity, J/kg-K 480
420
Thermal Conductivity, W/m-K 13
10
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 26
70
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 4.6
12
Embodied Energy, MJ/kg 66
160
Embodied Water, L/kg 180
300

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 17
22
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 3.5
2.7
Thermal Shock Resistance, points 11
19

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.020
Chromium (Cr), % 19 to 23
20 to 22.5
Cobalt (Co), % 0
0 to 2.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 44.9 to 57.8
2.0 to 6.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
12.5 to 14.5
Nickel (Ni), % 23 to 27
48.4 to 63
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.2
Sulfur (S), % 0 to 0.040
0 to 0.015
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 0
0 to 0.35
Residuals, % 0
0 to 0.5