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ASTM Grade HD Steel vs. SAE-AISI H23 Steel

Both ASTM grade HD steel and SAE-AISI H23 steel are iron alloys. They have 77% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HD steel and the bottom bar is SAE-AISI H23 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 590
760 to 1550

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Melting Completion (Liquidus), °C 1410
1680
Melting Onset (Solidus), °C 1370
1630
Specific Heat Capacity, J/kg-K 490
440
Thermal Conductivity, W/m-K 16
20
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 17
34
Density, g/cm3 7.7
8.7
Embodied Carbon, kg CO2/kg material 3.1
6.9
Embodied Energy, MJ/kg 45
110
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 29
32
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
22
Strength to Weight: Axial, points 21
24 to 49
Strength to Weight: Bending, points 20
21 to 34
Thermal Diffusivity, mm2/s 4.3
5.2
Thermal Shock Resistance, points 19
23 to 47

Alloy Composition

Carbon (C), % 0 to 0.5
0.25 to 0.35
Chromium (Cr), % 26 to 30
11 to 12.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 58.4 to 70
71.3 to 76.7
Manganese (Mn), % 0 to 1.5
0.15 to 0.4
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 4.0 to 7.0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0.15 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
11 to 12.8
Vanadium (V), % 0
0.75 to 1.3