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EN 1.4971 Stainless Steel vs. SAE-AISI H22 Steel

Both EN 1.4971 stainless steel and SAE-AISI H22 steel are iron alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4971 stainless steel and the bottom bar is SAE-AISI H22 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
77
Tensile Strength: Ultimate (UTS), MPa 800
700 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1460
1670
Melting Onset (Solidus), °C 1410
1620
Specific Heat Capacity, J/kg-K 450
440
Thermal Conductivity, W/m-K 13
31
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
28
Density, g/cm3 8.4
8.7
Embodied Carbon, kg CO2/kg material 7.6
4.9
Embodied Energy, MJ/kg 110
73
Embodied Water, L/kg 300
72

Common Calculations

PREN (Pitting Resistance) 38
21
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 26
22 to 61
Strength to Weight: Bending, points 23
20 to 39
Thermal Diffusivity, mm2/s 3.4
8.2
Thermal Shock Resistance, points 19
22 to 60

Alloy Composition

Carbon (C), % 0.080 to 0.16
0.3 to 0.4
Chromium (Cr), % 20 to 22.5
1.8 to 3.8
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 24.3 to 37.1
82.2 to 87.4
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0 to 0.3
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.0 to 3.0
10 to 11.8
Vanadium (V), % 0
0.25 to 0.5