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SAE-AISI H22 Steel vs. AISI 444 Stainless Steel

Both SAE-AISI H22 steel and AISI 444 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 22 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 AISI 444 stainless 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
78
Tensile Strength: Ultimate (UTS), MPa 700 to 1920
470

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1670
1460
Melting Onset (Solidus), °C 1620
1420
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 31
23
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 28
15
Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 4.9
3.4
Embodied Energy, MJ/kg 73
47
Embodied Water, L/kg 72
130

Common Calculations

PREN (Pitting Resistance) 21
26
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 22 to 61
17
Strength to Weight: Bending, points 20 to 39
17
Thermal Diffusivity, mm2/s 8.2
6.2
Thermal Shock Resistance, points 22 to 60
16

Alloy Composition

Carbon (C), % 0.3 to 0.4
0 to 0.025
Chromium (Cr), % 1.8 to 3.8
17.5 to 19.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 82.2 to 87.4
73.3 to 80.8
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 0
1.8 to 2.5
Nickel (Ni), % 0 to 0.3
0 to 1.0
Niobium (Nb), % 0
0.2 to 0.8
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8
Tungsten (W), % 10 to 11.8
0
Vanadium (V), % 0.25 to 0.5
0