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SAE-AISI H23 Steel vs. AISI 308L Stainless Steel

Both SAE-AISI H23 steel and AISI 308L stainless steel are iron alloys. They have 80% 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 H23 steel and the bottom bar is AISI 308L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 760 to 1550
580

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1680
1420
Melting Onset (Solidus), °C 1630
1380
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 20
15
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 34
16
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 6.9
3.2
Embodied Energy, MJ/kg 110
45
Embodied Water, L/kg 120
160

Common Calculations

PREN (Pitting Resistance) 32
21
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24 to 49
21
Strength to Weight: Bending, points 21 to 34
20
Thermal Diffusivity, mm2/s 5.2
4.1
Thermal Shock Resistance, points 23 to 47
13

Alloy Composition

Carbon (C), % 0.25 to 0.35
0 to 0.080
Chromium (Cr), % 11 to 12.8
19.5 to 22
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 71.3 to 76.7
63.8 to 70.5
Manganese (Mn), % 0.15 to 0.4
1.0 to 2.5
Nickel (Ni), % 0 to 0.3
9.0 to 11
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 0.6
0.25 to 0.6
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