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SAE-AISI H23 Steel vs. S20910 Stainless Steel

Both SAE-AISI H23 steel and S20910 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H23 steel and the bottom bar is S20910 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
79
Tensile Strength: Ultimate (UTS), MPa 760 to 1550
780 to 940

Thermal Properties

Latent Heat of Fusion, J/g 260
300
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
13
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 34
22
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 6.9
4.8
Embodied Energy, MJ/kg 110
68
Embodied Water, L/kg 120
180

Common Calculations

PREN (Pitting Resistance) 32
34
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24 to 49
28 to 33
Strength to Weight: Bending, points 21 to 34
24 to 27
Thermal Diffusivity, mm2/s 5.2
3.6
Thermal Shock Resistance, points 23 to 47
17 to 21

Alloy Composition

Carbon (C), % 0.25 to 0.35
0 to 0.060
Chromium (Cr), % 11 to 12.8
20.5 to 23.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 71.3 to 76.7
52.1 to 62.1
Manganese (Mn), % 0.15 to 0.4
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 0 to 0.3
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.6
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 11 to 12.8
0
Vanadium (V), % 0.75 to 1.3
0.1 to 0.3

Comparable Variants