Based in Manama, Bahrain, Niazi Stainless has built a strong reputation as a reliable manufacturer and supplier of high-performance metals, with a particular focus on precision-engineered tubing. We understand that many industries demand materials that can handle significant stress and challenging environments, which is why our Stainless Steel 17-7 PH Tubing is such a popular choice. This grade offers a remarkable combination of strength, durability, and corrosion resistance, making it a dependable solution for critical applications across various sectors.
Stainless Steel 17-7 PH gets its unique characteristics from a carefully balanced composition, primarily chromium and nickel, with the key addition of aluminum. What truly sets it apart is its precipitation hardening (PH) heat treatment. This specialized process allows the material to be formed in a more malleable state and then thermally treated to achieve very high strength and hardness. The result is tubing with exceptional mechanical properties, including impressive tensile strength and good fatigue resistance, all while maintaining the corrosion resistance you expect from a stainless steel.
| Tensile Strength | 1100 MPa (160,000 psi) minimum |
| Yield Strength | 1035 MPa (150,000 psi) minimum |
| Elongation | 20% minimum |
| Hardness | HRC 40-47 (in Condition TH1050) |
| Element | Min | Max |
|---|---|---|
| Cr | 16 | 18 |
| Ni | 6.5 | 7.75 |
| Al | 0.75 | 1.5 |
| Mn | – | 1 |
| Si | – | 1 |
| C | – | 0.09 |
| P | – | 0.04 |
| S | – | 0.03 |
| Fe | Balance | |
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We ensures the highest quality stainless steel 17-7 PH tubing through rigorous testing and certification processes. Our products undergo extensive technical, chemical and theoretical testing to meet international standards. We offer an extensive certification report, which guarantees excellent performance, authority and reliability, making us a trusted supplier in the industry.
Stainless Steel 17-7PH Seamless Tubing offers high strength and moderate corrosion resistance. Available in sizes ranging from 0.25″ to 2″ OD, it is ideal for aerospace and chemical processing applications. Its seamless construction ensures uniformity and integrity under pressure.
Stainless Steel 17-7PH Welded Tubing provides excellent formability and corrosion resistance. Sizes range from 0.5″ to 4″ OD, suitable for structural and mechanical uses. The welded seams are treated to enhance durability and prevent corrosion
Stainless Steel 17-7PH Heat Exchanger Tubes are designed for high-temperature environments, offering excellent corrosion resistance. Available in sizes from 0.5″ to 3″ OD, these tubes are crucial for efficient heat transfer in industrial processes. They are often used in power generation and petrochemical industries.
Stainless Steel 17-7PH Instrumentation Tubing ensures precision and high corrosion resistance. Typically available in sizes from 0.125″ to 1″ OD, it is perfect for sensitive instrumentation and control systems. Its stability under varying pressures makes it ideal for critical applications.
Stainless Steel 17-7PH Boiler Tubes are built to withstand high pressures and temperatures, with excellent corrosion resistance. Sizes range from 0.5″ to 5″ OD, making them suitable for power plants and industrial boilers. They ensure long-lasting performance under extreme conditions.
Stainless Steel 17-7PH U-Tubes offer great strength and corrosion resistance, ideal for heat exchangers and condensers. Available in sizes from 0.5″ to 2.5″ OD, these U-shaped tubes facilitate efficient thermal transfer. Their design allows for effective use in compact spaces
Stainless Steel 17-7PH Condenser Tubes are corrosion-resistant and highly durable, ideal for condensing heat in various systems. Sizes range from 0.5″ to 3″ OD, used extensively in HVAC and refrigeration industries. These tubes ensure efficient and reliable performance.
Stainless Steel 17-7PH Fin Tubes enhance heat transfer efficiency while providing excellent corrosion resistance. Available in sizes from 0.5″ to 3″ OD with various fin configurations, they are used in heat exchangers and cooling applications. The fins increase the surface area for better thermal performance.
The unique strength-to-weight ratio and resilience of 17-7 PH tubing make it indispensable in applications where failure is not an option. You’ll find it essential in aerospace components like aircraft frames and fittings, as well as in critical parts for the chemical and petroleum industries. It’s also widely used for high-stress mechanical components, springs, and fasteners. At Niazi Stainless, we supply this tubing to clients who need a material that performs reliably under pressure, in harsh conditions, or where long-term durability is the primary concern.
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