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SAE-AISI 6150 Steel vs. ASTM Grade HN Steel

Both SAE-AISI 6150 steel and ASTM grade HN steel are iron alloys. They have 54% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 6150 steel and the bottom bar is ASTM grade HN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 350
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 15 to 23
9.0
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 630 to 1200
500

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 420
1080
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1410
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
13
Thermal Expansion, µm/m-K 12 to 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
26
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.0
4.6
Embodied Energy, MJ/kg 28
66
Embodied Water, L/kg 51
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 43
17
Strength to Weight: Bending, points 21 to 32
18
Thermal Diffusivity, mm2/s 13
3.5
Thermal Shock Resistance, points 20 to 38
11

Alloy Composition

Carbon (C), % 0.48 to 0.53
0.2 to 0.5
Chromium (Cr), % 0.8 to 1.1
19 to 23
Iron (Fe), % 96.7 to 97.7
44.9 to 57.8
Manganese (Mn), % 0.7 to 0.9
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
23 to 27
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 2.0
Sulfur (S), % 0 to 0.040
0 to 0.040
Vanadium (V), % 0.15 to 0.3
0