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ASTM Grade HN Steel vs. Nickel 200

ASTM grade HN steel belongs to the iron alloys classification, while nickel 200 belongs to the nickel alloys. They have a modest 26% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HN steel and the bottom bar is nickel 200.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 9.0
23 to 44
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 77
70
Tensile Strength: Ultimate (UTS), MPa 500
420 to 540

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Mechanical, °C 1080
900
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1440
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 13
69
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 26
65
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 4.6
11
Embodied Energy, MJ/kg 66
150
Embodied Water, L/kg 180
230

Common Calculations

Stiffness to Weight: Axial, points 14
11
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 17
13 to 17
Strength to Weight: Bending, points 18
14 to 17
Thermal Diffusivity, mm2/s 3.5
17
Thermal Shock Resistance, points 11
13 to 16

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.15
Chromium (Cr), % 19 to 23
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 44.9 to 57.8
0 to 0.4
Manganese (Mn), % 0 to 2.0
0 to 0.35
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 23 to 27
99 to 100
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.010