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SAE-AISI H23 Steel vs. ACI-ASTM CG12 Steel

Both SAE-AISI H23 steel and ACI-ASTM CG12 steel are iron alloys. They have 78% 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 ACI-ASTM CG12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 760 to 1550
550

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1680
1410
Melting Onset (Solidus), °C 1630
1370
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 20
15
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 34
18
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 6.9
3.3
Embodied Energy, MJ/kg 110
48
Embodied Water, L/kg 120
160

Common Calculations

PREN (Pitting Resistance) 32
22
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24 to 49
20
Strength to Weight: Bending, points 21 to 34
19
Thermal Diffusivity, mm2/s 5.2
4.0
Thermal Shock Resistance, points 23 to 47
12

Alloy Composition

Carbon (C), % 0.25 to 0.35
0 to 0.12
Chromium (Cr), % 11 to 12.8
20 to 23
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 71.3 to 76.7
60.3 to 70
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Nickel (Ni), % 0 to 0.3
10 to 13
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.6
0 to 2.0
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