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SAE-AISI H23 Steel vs. ASTM A372 Grade G Steel

Both SAE-AISI H23 steel and ASTM A372 grade G steel are iron alloys. They have 75% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, 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 A372 grade G steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 760 to 1550
650 to 910

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1680
1460
Melting Onset (Solidus), °C 1630
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 20
46
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 34
2.2
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 6.9
1.5
Embodied Energy, MJ/kg 110
20
Embodied Water, L/kg 120
49

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 24 to 49
23 to 32
Strength to Weight: Bending, points 21 to 34
21 to 27
Thermal Diffusivity, mm2/s 5.2
13
Thermal Shock Resistance, points 23 to 47
19 to 27

Alloy Composition

Carbon (C), % 0.25 to 0.35
0.25 to 0.35
Chromium (Cr), % 11 to 12.8
0.4 to 0.65
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 71.3 to 76.7
97.4 to 98.4
Manganese (Mn), % 0.15 to 0.4
0.7 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0.15 to 0.6
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 11 to 12.8
0
Vanadium (V), % 0.75 to 1.3
0

Comparable Variants