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S66286 Stainless Steel vs. SAE-AISI T8 Steel

Both S66286 stainless steel and SAE-AISI T8 steel are iron alloys. They have 60% 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 S66286 stainless steel and the bottom bar is SAE-AISI T8 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
78
Tensile Strength: Ultimate (UTS), MPa 620 to 1020
780 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1430
1730
Melting Onset (Solidus), °C 1370
1670
Specific Heat Capacity, J/kg-K 470
420
Thermal Conductivity, W/m-K 15
18
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 26
45
Density, g/cm3 7.9
9.0
Embodied Carbon, kg CO2/kg material 6.0
10
Embodied Energy, MJ/kg 87
160
Embodied Water, L/kg 170
120

Common Calculations

PREN (Pitting Resistance) 19
30
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 22 to 36
24 to 66
Strength to Weight: Bending, points 20 to 28
21 to 41
Thermal Diffusivity, mm2/s 4.0
4.8
Thermal Shock Resistance, points 13 to 22
24 to 66

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0 to 0.080
0.75 to 0.85
Chromium (Cr), % 13.5 to 16
3.8 to 4.5
Cobalt (Co), % 0
4.3 to 5.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 49.1 to 59.5
69.3 to 75.4
Manganese (Mn), % 0 to 2.0
0.2 to 0.4
Molybdenum (Mo), % 1.0 to 1.5
0.4 to 1.0
Nickel (Ni), % 24 to 27
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 1.9 to 2.4
0
Tungsten (W), % 0
13.3 to 14.8
Vanadium (V), % 0.1 to 0.5
1.8 to 2.4

Comparable Variants