Luois Metals distributes top–quality Stainless Steel 17‑7 PH bars and rods from Houston, offering a high-strength precipitation-hardening alloy suitable for aerospace, defense, and industrial use. This chromium-nickel stainless steel has outstanding mechanical properties and corrosion resistance. Manufactured to AMS 5658 and ASTM A705 specifications, our 17‑7 PH is available in a range of tempers (H900–H1150) and sizes, with cutting, polishing, and bright-annealing services available. We provide quality-compliant materials with quick response and technical assistance for your alloy bar and rod requirements.
17‑7 PH has ~17% chromium, ~7% nickel, ~1% aluminum, along with titanium and niobium. Tensile strength in the H1025 aged condition is approximately 1,152 MPa, yield strength around 1,021 MPa, and elongation about 6%. Hardness is 44–49 HRC. The alloy shows good ductility and weldability when solution-treated. Corrosion resistance is high in marine and industrial environments. It complies with AMS 5658/5659 and ASTM A705 requirements for precipitation-hardening stainless steel.
Dimension : EN, DIN, JIS, ASTM, BS, ASME, AISI
Grade : 17-7 PH (UNS No. S17700) Round Bars
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 17-7 PH Round Bars conforms to NACE MR0175/ISO 15156
| Grade | C | P | Si | Ni | Cu | Fe | Mn | S | Cr | AL |
| SS 17-7 PH | .09 | .04 | 1.0 max | 6.50 – 7.75 | – | Bal | 1.0 max | 0.04 | 16.0 – 18.0 | .75 – 1.50 |
|
Properties |
Metric |
Imperial |
|---|---|---|
|
Tensile strength |
1170 MPa |
170000 psi |
|
Yield strength |
965 MPa |
140000 psi |
|
Modulus of elasticity |
204 GPa |
29600 ksi |
|
Poisson’s ratio |
0.27-0.30 |
0.27-0.30 |
|
Elongation at break |
6% |
6% |
|
Hardness, Rockwell C |
38 |
38 |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 17-7 PH | – | S17700 |
Stainless Steel 17-7 PH Bars and Rods offer exceptional strength, corrosion resistance, and fatigue resistance. These materials are specifically engineered for high-stress and high-performance applications. With superior mechanical properties and the ability to withstand harsh environments, they are ideal for industries like aerospace, automotive, and chemical processing, ensuring long-lasting performance and reliability.
Yes, Stainless Steel 17-7 PH Bars and Rods can be heat-treated to further enhance their mechanical properties. The material undergoes a precipitation hardening process that allows for precise control of strength and hardness, providing customized material characteristics for specific applications.
17‑7 PH bars and rods find applications in aerospace control systems, missile parts, landing gear components, and heat shields because of their balance of corrosion resistance and high strength. Industrially, they are utilized in valve stems, fasteners, fittings, and springs in marine and process service. Medical devices like surgical instruments and implants take advantage of their biocompatibility and mechanical properties. The alloy finds applications in the automotive sector such as high-performance exhausts and pressure vessels. Due to its combination of high-load capability and environmental resistance, it is also found to be applied to performance-critical engineering applications.
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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