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SAE-AISI 1046 Steel vs. ASTM Grade HI Steel

Both SAE-AISI 1046 steel and ASTM grade HI steel are iron alloys. They have 55% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1046 steel and the bottom bar is ASTM grade HI steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 210
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14 to 17
11
Fatigue Strength, MPa 240 to 390
150
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
79
Tensile Strength: Ultimate (UTS), MPa 660 to 740
550
Tensile Strength: Yield (Proof), MPa 370 to 610
270

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
23
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
4.1
Embodied Energy, MJ/kg 18
59
Embodied Water, L/kg 46
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 95
52
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 990
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 26
20
Strength to Weight: Bending, points 22 to 23
19
Thermal Diffusivity, mm2/s 14
3.9
Thermal Shock Resistance, points 23 to 25
12

Alloy Composition

Carbon (C), % 0.43 to 0.5
0.2 to 0.5
Chromium (Cr), % 0
26 to 30
Iron (Fe), % 98.4 to 98.9
46.9 to 59.8
Manganese (Mn), % 0.7 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
14 to 18
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Sulfur (S), % 0 to 0.050
0 to 0.040