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ASTM Grade HT Steel vs. SAE-AISI 1046 Steel

Both ASTM grade HT steel and SAE-AISI 1046 steel are iron alloys. They have 46% 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 ASTM grade HT steel and the bottom bar is SAE-AISI 1046 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
190 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 4.6
14 to 17
Fatigue Strength, MPa 130
240 to 390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 500
660 to 740
Tensile Strength: Yield (Proof), MPa 270
370 to 610

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1010
400
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
51
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
11
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
12

Otherwise Unclassified Properties

Base Metal Price, % relative 31
1.8
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
1.4
Embodied Energy, MJ/kg 76
18
Embodied Water, L/kg 190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
91 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 180
360 to 990
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
23 to 26
Strength to Weight: Bending, points 18
22 to 23
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 12
23 to 25

Alloy Composition

Carbon (C), % 0.35 to 0.75
0.43 to 0.5
Chromium (Cr), % 15 to 19
0
Iron (Fe), % 38.2 to 51.7
98.4 to 98.9
Manganese (Mn), % 0 to 2.0
0.7 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 33 to 37
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.5
0
Sulfur (S), % 0 to 0.040
0 to 0.050