15-5 PH Stainless Steel Round Bar: 15-5 PH (UNS S15500) is a precipitation-hardening stainless grade specified for high-strength bars and aerospace or mechanical parts. Aging condition is central to the required mechanical properties.
Download Mozaic 15-5 PH Stainless Steel Round Bar reference PDF
15-5 PH Stainless Steel Round Bar — Technical Specification Overview
| Property | Material or specification details |
|---|---|
| Material designation | 15-5 PH Stainless Steel Round Bar |
| Chemical / alloy identity | UNS S15500; precipitation-hardening chromium-nickel-copper stainless |
| Specification to confirm | AMS 5659 when explicitly specified; verify applicable product standard |
| Supplied condition | State Condition A or required H900/H1025/H1075/H1150 aging condition |
| Representative parts | Aerospace shafting, high-strength fasteners, precision-machined parts |
| Processing requirements | Finished bar OD, surface roughness, straightness, length and heat/lot traceability determined per purchase order |
Illustrative reference only. The exact edition of the purchase standard, product form, supply condition and mill test report govern material acceptance.
Selection, Properties and Applications
15-5 PH and 17-4 PH are different grades; ASTM or AMS compliance must be checked separately.
Common applications include aerospace shafting, high-strength fasteners, precision-machined parts. The correct steel grade depends on operating environment, hardness or corrosion criteria, machining requirements, and traceability. An engineer should approve any alternative material designation and required temper before production.
Centerless Ground Bar and Processing
Mozaic Precision Metals can review 15-5 PH Stainless Steel Round Bar sourcing and precision centerless grinding, polishing, straightening, saw cutting and packaging. Service capability depends on bar diameter, length, condition, starting material and tolerances. Requirements for straightness, roundness, finished diameter and surface finish should be separately specified, not assumed to share one universal tolerance.
Related Material Grades
- 17-4 PH stainless bar — compare chemistry, condition and suitability before substituting
- Custom 455 stainless — compare chemistry, condition and suitability before substituting
Request a Material Quote
Please identify the exact grade, product standard/revision, annealed or heat-treated condition, starting and final OD, bar length, quantity, surface and inspection criteria, and certificates needed. Request a quote from Mozaic, email sales@mozaicprecision.com, or call 847-637-8379.