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SAE-AISI H43 Steel vs. ACI-ASTM CG8M Steel

Both SAE-AISI H43 steel and ACI-ASTM CG8M steel are iron alloys. They have 73% of their average alloy composition in common. There are 22 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 H43 steel and the bottom bar is ACI-ASTM CG8M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 710 to 2140
550

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1530
1450
Melting Onset (Solidus), °C 1480
1400
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 30
16
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 14
20
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 8.2
4.1
Embodied Energy, MJ/kg 120
56
Embodied Water, L/kg 100
160

Common Calculations

PREN (Pitting Resistance) 31
31
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 75
19
Strength to Weight: Bending, points 22 to 46
19
Thermal Diffusivity, mm2/s 8.3
4.3
Thermal Shock Resistance, points 21 to 62
12

Alloy Composition

Carbon (C), % 0.5 to 0.65
0 to 0.080
Chromium (Cr), % 3.8 to 4.5
18 to 21
Iron (Fe), % 83.2 to 85.9
58.8 to 70
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 7.8 to 8.5
3.0 to 4.0
Nickel (Ni), % 0
9.0 to 13
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040
Vanadium (V), % 1.8 to 2.2
0