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ASTM Grade HT Steel vs. SAE-AISI M46 Steel

Both ASTM grade HT steel and SAE-AISI M46 steel are iron alloys. They have 51% of their average alloy composition in common. There are 22 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 HT steel and the bottom bar is SAE-AISI M46 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 500
800 to 2300

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Melting Completion (Liquidus), °C 1390
1540
Melting Onset (Solidus), °C 1340
1500
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 12
18
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 31
33
Density, g/cm3 8.0
8.1
Embodied Carbon, kg CO2/kg material 5.4
12
Embodied Energy, MJ/kg 76
180
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 18
35
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
27 to 78
Strength to Weight: Bending, points 18
24 to 48
Thermal Diffusivity, mm2/s 3.2
4.9
Thermal Shock Resistance, points 12
25 to 71

Alloy Composition

Carbon (C), % 0.35 to 0.75
1.2 to 1.3
Chromium (Cr), % 15 to 19
3.7 to 4.2
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 38.2 to 51.7
70 to 73.8
Manganese (Mn), % 0 to 2.0
0.2 to 0.4
Molybdenum (Mo), % 0 to 0.5
8.0 to 8.5
Nickel (Ni), % 33 to 37
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.5
0.4 to 0.65
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
1.9 to 2.2
Vanadium (V), % 0
3.0 to 3.3