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Premium 17-4PH Stainless Steel Round Bar High Strength & Excellent Corrosion Resistance
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xProduct Details
| Products Name | 17-4PH Stainless Steel Bar | Diameter | 10 - 350mm |
|---|---|---|---|
| Length | 6m Or Cutting Any Length As Request | Surface | Black Or Polishing |
| Service | Cutting | Standard | ASTM DIN GB EN |
| Other Products | Round Bar, Square Bar, Flat Bar.etc | Technique | Hot Rolled |
Product Description
Premium 17-4PH Stainless Steel Round Bar High Strength & Excellent Corrosion Resistance
Products Specification
| Products Name | 17-4PH Stainless Steel Round Bar |
| Grade |
303,303Cu,304,304L,309S,310S,310H,316L,316Ti,316H,317L,321,329,347,410,415,420, 430F,431,440A/B/C,2205,2507,904l,254SMO,253MA,CD4MCU,XM-19,17-4PH,15-5PH,17-7PH,660,C276,600,601,625,718,800,800H,825,926.etc |
| Products Diameter Range | φ3mm - φ350mm |
| Length | 6m/pcs or cutting any length as request |
| Surface | Pickling finishing, bright finishing |
| Standard | ASTM JIS,GB,DIN EN |
| Service | Cutting |
| Other Shape | Square , Flat, Hexagonal, Round.etc |
| Loading Port | Shanghai Port |
| MOQ | 50 kgs |
Premium 17-4PH Stainless Steel Round Bar – High Strength & Excellent Corrosion Resistance
Engineered for Demanding Applications Where Performance Can’t Be Compromised
The 17-4PH stainless steel round bar stands as a premier choice in high-performance engineering, offering an exceptional balance of high tensile strength, outstanding corrosion resistance, and precipitation-hardening capability. Also known by its UNS designation S17400, European standard 1.4542, Japanese grade SUS630, and Chinese equivalent 0Cr17Ni4Cu4Nb, this martensitic precipitation-hardening (PH) stainless steel is trusted across aerospace, defense, energy, medical, and precision industrial sectors.
Unlike conventional stainless steels, 17-4PH achieves its superior mechanical properties not through cold working—but through a controlled aging heat treatment that precipitates fine intermetallic phases (primarily ε-copper). This allows designers to machine components in a soft, solution-annealed state and then age them to final strength—minimizing distortion while maximizing performance.
✅ Key Benefits at a Glance
- Ultimate Tensile Strength up to 1,310 MPa (190 ksi) after H900 aging
- Corrosion resistance comparable to 304 stainless steel in many environments—including marine atmospheres and mild chemical exposure
- Excellent fatigue and stress-corrosion cracking (SCC) resistance when properly aged
- Good machinability in the annealed condition
- Weldable with post-weld aging to restore strength
- Non-magnetic in aged condition—ideal for sensitive instrumentation and medical implants
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