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Precipitation Hardening Stainless Steels – Strength Meets Corrosion Resistance
We supply a full range of PH stainless steels including 17-4PH (S17400), 15-5PH and 13-8Mo. Ideal for precision parts requiring excellent strength, wear resistance and dimensional stability.
What Is Precipitation Hardening Steel?
Precipitation Hardening (PH) stainless steels are a class of martensitic or semi-austenitic steels strengthened by a heat treatment process that precipitates fine particles to enhance mechanical properties.
Key Features:
High strength-to-weight ratio
Corrosion resistance comparable to austenitic stainless steels (304, 316)
Good machinability and dimensional control
Age-hardenable with no distortion
Magnetic (17-4PH, 15-5PH) or non-magnetic (A286, depending on condition)
Products Link
Optional product specifications
| Property | Details |
|---|---|
| Product Forms | Round bar, flat bar, sheet, plate, forging, disc, block |
| Grades Available | 17-4PH (UNS S17400), 15-5PH, 13-8Mo, A286, 17-7PH |
| Standards | ASTM A564, A693, A705, AMS 5643, EN 1.4542 |
| Bar Size | Ø6mm – Ø400mm |
| Plate Thickness | 3mm – 150mm |
| Delivery State | Annealed (Condition A), H900 / H1025 / H1150 etc. |
| Heat Treatments | Solution Annealed + Aging (Precipitation Hardened) |
| Certifications | EN10204 3.1 / 3.2, AMS, NACE, ISO 9001 |
* Third-party inspections, NDT, tensile & hardness testing available.
Processing & Packaging
Custom cutting (waterjet/plasma/saw)
Solution annealing + aging heat treatment
Hardness, tensile, elongation testing per batch
Turning, grinding, polishing (Ra ≤ 0.8µm)
Wooden crate, rust-proof wrap, ID marking
Why Buy From Xishang?
- Full series of PH grades including 17-4PH, 13-8Mo, A286
- Heat treatment options: H900 to H1150M
- CNC machining, rough/final turned finish available
- Tight tolerance and dimensional control
- Low MOQ, stock ready, global shipping
- Corrosion resistance + high yield strength for critical parts
Frequently Asked Questions
Q1: What’s the difference between 17-4PH and 15-5PH?
A:
Both are PH stainless steels. 15-5PH offers better toughness and slightly better corrosion resistance due to its reduced delta ferrite content compared to 17-4PH.
Q2: What is “H900” or “H1150” condition?
A:
These refer to heat treatment aging temperatures which determine final mechanical properties. H900 = high strength, H1150 = improved ductility.
Q3: Can you provide forged blanks in PH stainless?
A:
Yes. Forgings, rough turned bars and large plates for machining are available.
Q4: What industries commonly use PH steels?
A:
Aerospace, precision machinery, petrochemical, pump/valve, food equipment, mold tooling, marine and defense.
Q5: Do you support small quantity machining trials?
A:
Absolutely. Low MOQ and custom-machining support provided for new project evaluations.
Let us know your required grade
Whether you're building flight hardware, injection molds, or pump shafts, Xishang delivers PH stainless steels with full control over mechanical performance and processing.
