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SAE-AISI H22 Steel vs. ACI-ASTM CA40 Steel

Both SAE-AISI H22 steel and ACI-ASTM CA40 steel are iron alloys. They have 89% 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 CA40 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 700 to 1920
910

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1670
1440
Melting Onset (Solidus), °C 1620
1500
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 31
25
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 28
7.5
Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 4.9
2.0
Embodied Energy, MJ/kg 73
28
Embodied Water, L/kg 72
100

Common Calculations

PREN (Pitting Resistance) 21
14
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 22 to 61
33
Strength to Weight: Bending, points 20 to 39
27
Thermal Diffusivity, mm2/s 8.2
6.7
Thermal Shock Resistance, points 22 to 60
33

Alloy Composition

Carbon (C), % 0.3 to 0.4
0.2 to 0.4
Chromium (Cr), % 1.8 to 3.8
11.5 to 14
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 82.2 to 87.4
81.5 to 88.3
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.3
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0 to 1.5
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