Precipitation Hardened S66286 Stainless Steel
Precipitation hardened S66286 stainless steel is S66286 stainless steel in the aged (precipitation hardened) condition. The graph bars on the material properties cards below compare precipitation hardened S66286 stainless steel to: wrought precipitation-hardening stainless steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
190 GPa 28 x 106 psi
Elongation at Break
17 %
Fatigue Strength
410 MPa 59 x 103 psi
Poisson's Ratio
0.29
Shear Modulus
75 GPa 11 x 106 psi
Shear Strength
630 MPa 91 x 103 psi
Tensile Strength: Ultimate (UTS)
1020 MPa 150 x 103 psi
Tensile Strength: Yield (Proof)
670 MPa 97 x 103 psi
Thermal Properties
Latent Heat of Fusion
300 J/g
Maximum Temperature: Corrosion
780 °C 1440 °F
Maximum Temperature: Mechanical
920 °C 1690 °F
Melting Completion (Liquidus)
1430 °C 2600 °F
Melting Onset (Solidus)
1370 °C 2500 °F
Specific Heat Capacity
470 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
15 W/m-K 8.7 BTU/h-ft-°F
Thermal Expansion
17 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
1.9 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.2 % IACS
Otherwise Unclassified Properties
Base Metal Price
26 % relative
Density
7.9 g/cm3 500 lb/ft3
Embodied Carbon
6.0 kg CO2/kg material
Embodied Energy
87 MJ/kg 37 x 103 BTU/lb
Embodied Water
170 L/kg 20 gal/lb
Common Calculations
PREN (Pitting Resistance)
19
Resilience: Ultimate (Unit Rupture Work)
150 MJ/m3
Resilience: Unit (Modulus of Resilience)
1150 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
36 points
Strength to Weight: Bending
28 points
Thermal Diffusivity
4.0 mm2/s
Thermal Shock Resistance
22 points
Alloy Composition
| Fe | 49.1 to 59.5 | |
| Ni | 24 to 27 | |
| Cr | 13.5 to 16 | |
| Ti | 1.9 to 2.4 | |
| Mo | 1.0 to 1.5 | |
| Mn | 0 to 2.0 | |
| Si | 0 to 1.0 | |
| V | 0.1 to 0.5 | |
| Al | 0 to 0.35 | |
| C | 0 to 0.080 | |
| P | 0 to 0.040 | |
| S | 0 to 0.030 | |
| B | 0.0010 to 0.010 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM A638: Standard Specification for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service
ASTM A276: Standard Specification for Stainless Steel Bars and Shapes
Welding Metallurgy of Stainless Steels, Erich Folkhard et al., 2012
ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Corrosion of Stainless Steels, A. John Sedriks, 1996
ASM Specialty Handbook: Stainless Steels, J. R. Davis (editor), 1994
Advances in Stainless Steels, Baldev Raj et al. (editors), 2010
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015