MakeItFrom.com
Menu (ESC)

ASTM Grade HN Steel vs. Nickel 725

ASTM grade HN steel belongs to the iron alloys classification, while nickel 725 belongs to the nickel alloys. They have 55% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (13, 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 725.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 9.0
34
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 500
860

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Maximum Temperature: Mechanical, °C 1080
980
Melting Completion (Liquidus), °C 1400
1340
Melting Onset (Solidus), °C 1350
1270
Specific Heat Capacity, J/kg-K 480
440
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 26
75
Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 4.6
13
Embodied Energy, MJ/kg 66
190
Embodied Water, L/kg 180
270

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 17
28
Strength to Weight: Bending, points 18
24
Thermal Shock Resistance, points 11
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0.2 to 0.5
0 to 0.030
Chromium (Cr), % 19 to 23
19 to 22.5
Iron (Fe), % 44.9 to 57.8
2.3 to 15.3
Manganese (Mn), % 0 to 2.0
0 to 0.35
Molybdenum (Mo), % 0 to 0.5
7.0 to 9.5
Nickel (Ni), % 23 to 27
55 to 59
Niobium (Nb), % 0
2.8 to 4.0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 2.0
0 to 0.2
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.7