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SAE-AISI H11 Steel vs. S20910 Stainless Steel

Both SAE-AISI H11 steel and S20910 stainless steel are iron alloys. They have 65% 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 H11 steel and the bottom bar is S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
79
Tensile Strength: Ultimate (UTS), MPa 690 to 1840
780 to 940

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 42
13
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 5.5
22
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.0
4.8
Embodied Energy, MJ/kg 43
68
Embodied Water, L/kg 75
180

Common Calculations

PREN (Pitting Resistance) 9.6
34
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 66
28 to 33
Strength to Weight: Bending, points 22 to 43
24 to 27
Thermal Diffusivity, mm2/s 11
3.6
Thermal Shock Resistance, points 22 to 58
17 to 21

Alloy Composition

Carbon (C), % 0.33 to 0.43
0 to 0.060
Chromium (Cr), % 4.8 to 5.5
20.5 to 23.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 89.6 to 92.5
52.1 to 62.1
Manganese (Mn), % 0.2 to 0.5
4.0 to 6.0
Molybdenum (Mo), % 1.1 to 1.6
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), % 0.8 to 1.2
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.3 to 0.6
0.1 to 0.3

Comparable Variants