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SAE-AISI H22 Steel vs. SAE-AISI 1140 Steel

Both SAE-AISI H22 steel and SAE-AISI 1140 steel are iron alloys. They have 85% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H22 steel and the bottom bar is SAE-AISI 1140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 700 to 1920
600 to 700

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1670
1460
Melting Onset (Solidus), °C 1620
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 31
51
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 28
1.8
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 4.9
1.4
Embodied Energy, MJ/kg 73
18
Embodied Water, L/kg 72
46

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 22 to 61
21 to 25
Strength to Weight: Bending, points 20 to 39
20 to 22
Thermal Diffusivity, mm2/s 8.2
14
Thermal Shock Resistance, points 22 to 60
18 to 21

Alloy Composition

Carbon (C), % 0.3 to 0.4
0.37 to 0.44
Chromium (Cr), % 1.8 to 3.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 82.2 to 87.4
98.4 to 98.9
Manganese (Mn), % 0.15 to 0.4
0.7 to 1.0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0
Sulfur (S), % 0 to 0.030
0.080 to 0.13
Tungsten (W), % 10 to 11.8
0
Vanadium (V), % 0.25 to 0.5
0