Luois Metals distributes Stainless Steel 17‑4 PH bars and rods out of Houston— an extensive range precipitation-hardening alloy with superior strength and corrosion resistance. Formulated with nickel, chromium, and copper, 17‑4 PH is available in tempers H900–H1150 and meets AMS 5609 / ASTM A693 standards. Our precision cutting, polishing, and certification ensure material reliability for aerospace, petrochemical, and tooling industries. With responsive service and robust inventory, Luois Metals delivers consistent alloy solutions for high-performance structural and corrosion-resistant applications.
17‑4 PH has ~17% chromium, ~4% nickel, ~4% copper, and 0.3% niobium with minor additions. In H1025 condition, tensile strength is approximately 1,000 MPa, yield strength ~900 MPa, elongation ~12%, and hardness approximately 42 HRC. Excellent corrosion resistance in marine and chemical environments and good toughness. Weldable and heat-treatable to high hardness without loss of ductility. Conforms to AMS 5609 / ASTM A693.
Dimension : EN, DIN, JIS, ASTM, BS, ASME, AISI
Grade : 17-4 PH (UNS No. S17400) Round Bars 1.4542
Finish : Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Form : Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.
Surface : Hot Rolled Pickled or Sand Blasting Finished, Cold Drawn, Bright, Polished, Hairline
Application : Chemical process, Food processing, Petrochemical, Pollution control, Pulp and Paper, Refining
Condition : Cold Drawnd Pulished Cold Drawn Centreless Ground & Polished.
Our 17-4 PH Round Bars conforms to NACE MR0175/ISO 15156
| Grade | C | P | Si | Ni | Cu | Fe | Mn | S | Cr | Cb+Ta |
| SS 17-4 PH | 0.07 | 0.04 | 1.0 max | 3.0 – 5.0 | 3.0 – 5.0 | Bal | 1.0 max | 0.03 | 15.0 – 17.5 | 5 X C / 0.45 |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 17-4 PH | 1.4542 | S17400 |
Stainless Steel 17-4 PH Bars and Rods are known for their exceptional strength and corrosion resistance. The alloy undergoes a precipitation hardening process, which significantly enhances its tensile strength, yield strength, and fatigue resistance, making it ideal for demanding applications in aerospace, automotive, and other industries that require materials to withstand high-stress environments.
Yes, Stainless Steel 17-4 PH Bars and Rods can be heat treated to achieve various hardness levels and mechanical properties. The material is often solution annealed and then precipitation hardened to optimize strength, corrosion resistance, and toughness, depending on the specific requirements of the application.
17‑4 PH rods/bars are applied in aerospace fasteners, shafts, and structural parts needing increased strength and resistance to corrosion. Petrochemical applications involve valve stems, pump shafts, and structural frames. Tooling applications include plastic and metal molds with high dimensional stability requirements. Marine uses involve prop shafts, rigging, and fittings. Medical equipment like implants and surgical instruments also employ 17‑4 PH on account of their biocompatibility and resistance to sterilization. The balanced strength, corrosion resistance, and performance of the alloy make it a popular choice for applications across industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Louis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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