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SAE-AISI H22 Steel vs. ACI-ASTM CF8 Steel

Both SAE-AISI H22 steel and ACI-ASTM CF8 steel are iron alloys. They have 72% 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 H22 steel and the bottom bar is ACI-ASTM CF8 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
77
Tensile Strength: Ultimate (UTS), MPa 700 to 1920
540

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1670
1420
Melting Onset (Solidus), °C 1620
1430
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 31
16
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 28
16
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 4.9
3.1
Embodied Energy, MJ/kg 73
44
Embodied Water, L/kg 72
150

Common Calculations

PREN (Pitting Resistance) 21
20
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 22 to 61
19
Strength to Weight: Bending, points 20 to 39
19
Thermal Diffusivity, mm2/s 8.2
4.3
Thermal Shock Resistance, points 22 to 60
13

Alloy Composition

Carbon (C), % 0.3 to 0.4
0 to 0.080
Chromium (Cr), % 1.8 to 3.8
18 to 21
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 82.2 to 87.4
63.8 to 74
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.3
8.0 to 11
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040
Tungsten (W), % 10 to 11.8
0
Vanadium (V), % 0.25 to 0.5
0