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SAE-AISI H23 Steel vs. AISI 446 Stainless Steel

Both SAE-AISI H23 steel and AISI 446 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H23 steel and the bottom bar is AISI 446 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 80
79
Tensile Strength: Ultimate (UTS), MPa 760 to 1550
570

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1680
1510
Melting Onset (Solidus), °C 1630
1430
Specific Heat Capacity, J/kg-K 440
490
Thermal Conductivity, W/m-K 20
17
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 34
12
Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 6.9
2.4
Embodied Energy, MJ/kg 110
35
Embodied Water, L/kg 120
150

Common Calculations

PREN (Pitting Resistance) 32
27
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 22
26
Strength to Weight: Axial, points 24 to 49
21
Strength to Weight: Bending, points 21 to 34
20
Thermal Diffusivity, mm2/s 5.2
4.6
Thermal Shock Resistance, points 23 to 47
19

Alloy Composition

Carbon (C), % 0.25 to 0.35
0 to 0.2
Chromium (Cr), % 11 to 12.8
23 to 27
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 71.3 to 76.7
69.2 to 77
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Nickel (Ni), % 0 to 0.3
0 to 0.75
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 11 to 12.8
0
Vanadium (V), % 0.75 to 1.3
0