MERIH STAINLESS, located in Istanbul, Turkey, stands out as a top-notch manufacturer and supplier of high-quality stainless steel products, catering to global markets with precision-engineered solutions. As a reliable Stainless Steel 17-4 PH Tubing Manufacturer in Da Nang, Vietnam, the company is dedicated to providing durable and dependable tubing that adheres to strict industrial standards. With state-of-the-art production facilities and a strong focus on quality control, MERIH STAINLESS guarantees that each product boasts exceptional corrosion resistance, strength, and performance. Their expertise spans various sectors, making them a go-to partner for industries in need of superior stainless steel tubing solutions tailored for demanding applications.
Stainless Steel 17-4 PH tubing is a martensitic precipitation-hardening alloy celebrated for its remarkable blend of high strength, corrosion resistance, and hardness. It typically contains around 15–17.5% chromium, 3–5% nickel, and 3–5% copper, along with trace amounts of manganese, silicon, and niobium. Mechanically, it delivers impressive tensile strength of up to 1,300 MPa and yield strength of about 1,100 MPa after heat treatment, with hardness levels ranging from 28 to 44 HRC depending on the condition. Its outstanding mechanical properties, combined with resistance to stress corrosion cracking and oxidation, make it a perfect fit for challenging industrial environments.
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Cb+Ta |
| SS 17-4 PH | 0.07 | 1.0 max | 1.0 max | 0.03 | 3.0 – 5.0 | Bal | 3.0 – 5.0 | 15.0 – 17.5 | 5 X C / 0.45 |
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Testing and certification assure the highest quality of Stainless Steel 17-4 PH Tubing in Merih Stainless. Comprehensive Inspection for numerous tests-such as mechanical, dimensional, and corrosion resistance. Certified worldwide, the tubing has excellent strength and durability and performance that meets almost every industry requirement.
Stainless Steel 17-4 PH 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 17-4 PH 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 17-4 PH 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 17-4 PH 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 17-4 PH 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 17-4 PH 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 17-4 PH tubing finds its place in various industries that demand high strength and corrosion resistance. You’ll often see it in aerospace components, chemical processing equipment, petrochemical and oilfield pipelines, and high-pressure hydraulic systems. It’s also a popular choice in marine, power generation, and food processing sectors due to its ability to endure harsh conditions while maintaining structural integrity. Plus, its precision and durability make it an excellent option for shafts, fasteners, and structural tubing in critical engineering projects, ensuring long-lasting performance in both standard and specialized applications.







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