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ASTM Grade HN Steel vs. Nickel 689

ASTM grade HN steel belongs to the iron alloys classification, while nickel 689 belongs to the nickel alloys. They have 47% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 689.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
350
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 9.0
23
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 500
1250

Thermal Properties

Latent Heat of Fusion, J/g 310
330
Maximum Temperature: Mechanical, °C 1080
990
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1350
1390
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 26
70
Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 4.6
11
Embodied Energy, MJ/kg 66
150
Embodied Water, L/kg 180
330

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 17
41
Strength to Weight: Bending, points 18
30
Thermal Shock Resistance, points 11
35

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0.2 to 0.5
0.1 to 0.2
Chromium (Cr), % 19 to 23
18 to 20
Cobalt (Co), % 0
9.0 to 11
Iron (Fe), % 44.9 to 57.8
0 to 5.0
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
9.0 to 10.5
Nickel (Ni), % 23 to 27
48.3 to 60.9
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
2.3 to 2.8