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SAE-AISI H23 Steel vs. ASTM Grade HT Steel

Both SAE-AISI H23 steel and ASTM grade HT steel are iron alloys. They have 58% 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 H23 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 0.28
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 760 to 1550
500

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1680
1390
Melting Onset (Solidus), °C 1630
1340
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 20
12
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 34
31
Density, g/cm3 8.7
8.0
Embodied Carbon, kg CO2/kg material 6.9
5.4
Embodied Energy, MJ/kg 110
76
Embodied Water, L/kg 120
190

Common Calculations

PREN (Pitting Resistance) 32
18
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 24 to 49
18
Strength to Weight: Bending, points 21 to 34
18
Thermal Diffusivity, mm2/s 5.2
3.2
Thermal Shock Resistance, points 23 to 47
12

Alloy Composition

Carbon (C), % 0.25 to 0.35
0.35 to 0.75
Chromium (Cr), % 11 to 12.8
15 to 19
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 71.3 to 76.7
38.2 to 51.7
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.3
33 to 37
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.6
0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.040
Tungsten (W), % 11 to 12.8
0
Vanadium (V), % 0.75 to 1.3
0