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SAE-AISI H43 Steel vs. ASTM Grade HT Steel

Both SAE-AISI H43 steel and ASTM grade HT 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 SAE-AISI H43 steel and the bottom bar is ASTM grade HT steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 710 to 2140
500

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1530
1390
Melting Onset (Solidus), °C 1480
1340
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 30
12
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 14
31
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 8.2
5.4
Embodied Energy, MJ/kg 120
76
Embodied Water, L/kg 100
190

Common Calculations

PREN (Pitting Resistance) 31
18
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 75
18
Strength to Weight: Bending, points 22 to 46
18
Thermal Diffusivity, mm2/s 8.3
3.2
Thermal Shock Resistance, points 21 to 62
12

Alloy Composition

Carbon (C), % 0.5 to 0.65
0.35 to 0.75
Chromium (Cr), % 3.8 to 4.5
15 to 19
Iron (Fe), % 83.2 to 85.9
38.2 to 51.7
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 7.8 to 8.5
0 to 0.5
Nickel (Ni), % 0
33 to 37
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.040
Vanadium (V), % 1.8 to 2.2
0