UNS S32615 Stainless Steel
S32615 stainless steel is an austenitic stainless steel formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition.
It has a moderately high embodied energy among wrought austenitic stainless steels. In addition, it has a moderately high base cost and a fairly low ductility.
The graph bars on the material properties cards below compare S32615 stainless steel to: wrought austenitic 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
Brinell Hardness
170
Elastic (Young's, Tensile) Modulus
190 GPa 28 x 106 psi
Elongation at Break
28 %
Fatigue Strength
180 MPa 26 x 103 psi
Poisson's Ratio
0.28
Reduction in Area
46 %
Shear Modulus
75 GPa 11 x 106 psi
Shear Strength
400 MPa 58 x 103 psi
Tensile Strength: Ultimate (UTS)
620 MPa 90 x 103 psi
Tensile Strength: Yield (Proof)
250 MPa 36 x 103 psi
Thermal Properties
Latent Heat of Fusion
370 J/g
Maximum Temperature: Corrosion
410 °C 780 °F
Maximum Temperature: Mechanical
990 °C 1810 °F
Melting Completion (Liquidus)
1350 °C 2460 °F
Melting Onset (Solidus)
1310 °C 2380 °F
Specific Heat Capacity
500 J/kg-K 0.12 BTU/lb-°F
Thermal Expansion
15 µm/m-K
Otherwise Unclassified Properties
Base Metal Price
24 % relative
Density
7.6 g/cm3 480 lb/ft3
Embodied Carbon
4.4 kg CO2/kg material
Embodied Energy
63 MJ/kg 27 x 103 BTU/lb
Embodied Water
170 L/kg 20 gal/lb
Common Calculations
PREN (Pitting Resistance)
21
Resilience: Ultimate (Unit Rupture Work)
140 MJ/m3
Resilience: Unit (Modulus of Resilience)
160 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
23 points
Strength to Weight: Bending
21 points
Thermal Shock Resistance
15 points
Alloy Composition
Among wrought stainless steels, the composition of S32615 stainless steel is notable for containing a comparatively high amount of silicon (Si). Silicon content is typically governed by metallurgical processing concerns, but it can also be added for the purpose of improving oxidation resistance.
| Fe | 46.4 to 57.9 | |
| Ni | 19 to 22 | |
| Cr | 16.5 to 19.5 | |
| Si | 4.8 to 6.0 | |
| Cu | 1.5 to 2.5 | |
| Mn | 0 to 2.0 | |
| Mo | 0.3 to 1.5 | |
| C | 0 to 0.070 | |
| P | 0 to 0.045 | |
| S | 0 to 0.030 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM A479: Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
ASTM A182: Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
ASTM A240: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
Welding Metallurgy and Weldability of Stainless Steels, John C. Lippold and Damian J. Kotecki, 2005
ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Corrosion of Austenitic Stainless Steels: Mechanism, Mitigation and Monitoring, H. S. Khatak and B. Raj (editors), 2002
Pressure Vessels: External Pressure Technology, 2nd ed., Carl T. F. Ross, 2011
Austenitic Stainless Steels: Microstructure and Mechanical Properties, P. Marshall, 1984
Properties and Selection: Irons, Steels and High Performance Alloys, ASM Handbook vol. 1, ASM International, 1993
ASM Specialty Handbook: Stainless Steels, J. R. Davis (editor), 1994