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SAE-AISI H26 Steel vs. S31727 Stainless Steel

Both SAE-AISI H26 steel and S31727 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H26 steel and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 720 to 2100
630

Thermal Properties

Latent Heat of Fusion, J/g 240
290
Melting Completion (Liquidus), °C 1810
1440
Melting Onset (Solidus), °C 1760
1390
Specific Heat Capacity, J/kg-K 410
470
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 45
24
Density, g/cm3 9.3
8.0
Embodied Carbon, kg CO2/kg material 8.1
4.7
Embodied Energy, MJ/kg 120
64
Embodied Water, L/kg 90
180

Common Calculations

PREN (Pitting Resistance) 34
35
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 22 to 63
22
Strength to Weight: Bending, points 19 to 39
20
Thermal Shock Resistance, points 22 to 63
14

Alloy Composition

Carbon (C), % 0.45 to 0.55
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
17.5 to 19
Copper (Cu), % 0 to 0.25
2.8 to 4.0
Iron (Fe), % 73.3 to 77.5
53.7 to 61.3
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 0
3.8 to 4.5
Nickel (Ni), % 0 to 0.3
14.5 to 16.5
Nitrogen (N), % 0
0.15 to 0.21
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 17.3 to 19
0
Vanadium (V), % 0.75 to 1.3
0