Chung Metal in Da Nang produces Stainless Steel 17-7 PH Bars and Rods for high strength and resistance to corrosion. This precipitation-hardened stainless steel boasts high mechanical properties and stability of dimensions after heat treatment. Chung Metal’s professionalism guarantees stable hardness and excellent surface quality, qualifying these bars for heavy-duty and high-precision use. The products from the company meet international standards of strength, durability, and fatigue endurance for harsh industrial conditions.
17-7 PH has 17% chromium, 7% nickel, and minor additions of aluminum for hardening. On aging, it develops tensile strength in excess of 1400 MPa, yield strength close to 1200 MPa, and hardness of about 45–48 HRC. It has superior corrosion resistance and fatigue strength.
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.
Stainless Steel 17-7 PH Bars and Rods are primarily used in industries such as aerospace, automotive, and chemical processing. They are highly sought after for applications requiring high strength, fatigue resistance, and the ability to perform in demanding environments, including structural components, springs, and gears.
17-7 PH bars and rods are applied in aerospace components, pressure vessels, springs, and mechanical components that need high strength. They show structural stability under stress and temperature changes. Chung Metal 17-7 PH bars are best for high-performance stainless alloys required in industries.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Da Nang, Vietnam
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