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SAE-AISI S6 Steel vs. S35500 Stainless Steel

Both SAE-AISI S6 steel and S35500 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S6 steel and the bottom bar is S35500 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 72
78
Tensile Strength: Ultimate (UTS), MPa 670 to 1920
1330 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 41
16
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.2
16
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.3
3.5
Embodied Energy, MJ/kg 33
47
Embodied Water, L/kg 56
130

Common Calculations

PREN (Pitting Resistance) 2.7
27
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 70
47 to 53
Strength to Weight: Bending, points 22 to 45
34 to 37
Thermal Diffusivity, mm2/s 11
4.4
Thermal Shock Resistance, points 22 to 64
44 to 49

Alloy Composition

Carbon (C), % 0.4 to 0.5
0.1 to 0.15
Chromium (Cr), % 1.2 to 1.5
15 to 16
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 92.8 to 94.7
73.2 to 77.7
Manganese (Mn), % 1.2 to 1.5
0.5 to 1.3
Molybdenum (Mo), % 0.3 to 0.5
2.5 to 3.2
Nickel (Ni), % 0
4.0 to 5.0
Niobium (Nb), % 0
0.1 to 0.5
Nitrogen (N), % 0
0.070 to 0.13
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 2.0 to 2.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.2 to 0.4
0