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SAE-AISI H11 Steel vs. S35125 Stainless Steel

Both SAE-AISI H11 steel and S35125 stainless steel are iron alloys. They have 48% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H11 steel and the bottom bar is S35125 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
78
Tensile Strength: Ultimate (UTS), MPa 690 to 1840
540

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 42
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 9.5
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 5.5
36
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.0
6.4
Embodied Energy, MJ/kg 43
89
Embodied Water, L/kg 75
210

Common Calculations

PREN (Pitting Resistance) 9.6
30
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 66
19
Strength to Weight: Bending, points 22 to 43
18
Thermal Diffusivity, mm2/s 11
3.1
Thermal Shock Resistance, points 22 to 58
12

Alloy Composition

Carbon (C), % 0.33 to 0.43
0 to 0.1
Chromium (Cr), % 4.8 to 5.5
20 to 23
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 89.6 to 92.5
36.2 to 45.8
Manganese (Mn), % 0.2 to 0.5
1.0 to 1.5
Molybdenum (Mo), % 1.1 to 1.6
2.0 to 3.0
Nickel (Ni), % 0 to 0.3
31 to 35
Niobium (Nb), % 0
0.25 to 0.6
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.8 to 1.2
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0.3 to 0.6
0