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SAE-AISI T15 Steel vs. S66286 Stainless Steel

Both SAE-AISI T15 steel and S66286 stainless 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 SAE-AISI T15 steel and the bottom bar is S66286 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 830 to 2240
620 to 1020

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1690
1430
Melting Onset (Solidus), °C 1640
1370
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 43
26
Density, g/cm3 8.7
7.9
Embodied Carbon, kg CO2/kg material 16
6.0
Embodied Energy, MJ/kg 250
87
Embodied Water, L/kg 140
170

Common Calculations

PREN (Pitting Resistance) 27
19
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 26 to 71
22 to 36
Strength to Weight: Bending, points 22 to 43
20 to 28
Thermal Diffusivity, mm2/s 5.6
4.0
Thermal Shock Resistance, points 26 to 70
13 to 22

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 1.5 to 1.6
0 to 0.080
Chromium (Cr), % 3.8 to 5.0
13.5 to 16
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 67.5 to 73.5
49.1 to 59.5
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 0 to 1.0
1.0 to 1.5
Nickel (Ni), % 0 to 0.3
24 to 27
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
1.9 to 2.4
Tungsten (W), % 11.8 to 13
0
Vanadium (V), % 4.5 to 5.3
0.1 to 0.5

Comparable Variants