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SAE-AISI H22 Steel vs. SAE-AISI M44 Steel

Both SAE-AISI H22 steel and SAE-AISI M44 steel are iron alloys. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is SAE-AISI H22 steel and the bottom bar is SAE-AISI M44 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 700 to 1920
870 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1670
1590
Melting Onset (Solidus), °C 1620
1540
Specific Heat Capacity, J/kg-K 440
440
Thermal Conductivity, W/m-K 31
14
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 28
43
Density, g/cm3 8.7
8.4
Embodied Carbon, kg CO2/kg material 4.9
9.9
Embodied Energy, MJ/kg 73
150
Embodied Water, L/kg 72
170

Common Calculations

PREN (Pitting Resistance) 21
35
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 22 to 61
28 to 75
Strength to Weight: Bending, points 20 to 39
24 to 46
Thermal Diffusivity, mm2/s 8.2
3.7
Thermal Shock Resistance, points 22 to 60
27 to 70

Alloy Composition

Carbon (C), % 0.3 to 0.4
1.1 to 1.2
Chromium (Cr), % 1.8 to 3.8
4.0 to 4.8
Cobalt (Co), % 0
11 to 12.3
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 82.2 to 87.4
65.3 to 70.6
Manganese (Mn), % 0.15 to 0.4
0.2 to 0.4
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 0.4
0.3 to 0.55
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 10 to 11.8
5.0 to 5.8
Vanadium (V), % 0.25 to 0.5
1.9 to 2.2

Comparable Variants