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ASTM Grade HN Steel vs. SAE-AISI 9310 Steel

Both ASTM grade HN steel and SAE-AISI 9310 steel are iron alloys. They have 57% of their average alloy composition in common. There are 24 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 SAE-AISI 9310 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
540 to 610
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.0
17 to 19
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 500
820 to 910

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1080
440
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
48
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 26
4.4
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.6
1.8
Embodied Energy, MJ/kg 66
24
Embodied Water, L/kg 180
57

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
29 to 32
Strength to Weight: Bending, points 18
25 to 27
Thermal Diffusivity, mm2/s 3.5
13
Thermal Shock Resistance, points 11
24 to 27

Alloy Composition

Carbon (C), % 0.2 to 0.5
0.080 to 0.13
Chromium (Cr), % 19 to 23
1.0 to 1.4
Iron (Fe), % 44.9 to 57.8
93.8 to 95.2
Manganese (Mn), % 0 to 2.0
0.45 to 0.65
Molybdenum (Mo), % 0 to 0.5
0.080 to 0.15
Nickel (Ni), % 23 to 27
3.0 to 3.5
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 2.0
0.2 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.012