Mitchell Stainless, a trusted manufacturer and supplier in Hamilton, New Zealand, offers premium Stainless Steel 17-4 PH tubing, designed for high-strength and corrosion-resistant applications. This precipitation-hardening alloy combines excellent mechanical properties, including high tensile and yield strength, with good corrosion resistance. 17-4 PH tubing is precision-engineered for consistent dimensions, smooth surface finish, and reliable performance under demanding industrial conditions. Mitchell Stainless ensures each tube meets strict quality standards, making it ideal for aerospace, chemical, marine, and industrial applications where durability, strength, and resistance to stress corrosion cracking are essential.
Stainless Steel 17-4 PH tubing is composed primarily of iron, with 16–18% chromium, 3–5% nickel, 3–5% copper, and small amounts of manganese, silicon, and carbon. This alloying provides exceptional strength, hardness, and corrosion resistance after precipitation hardening. The combination of chromium and nickel ensures resistance to oxidation and stress corrosion cracking, while copper enhances hardness and mechanical performance. The tubing maintains high tensile and yield strength, making it suitable for demanding structural, mechanical, and high-stress applications.
| 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 Mitchell 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 is widely used in aerospace, chemical processing, marine, and industrial equipment where high strength and corrosion resistance are critical. Typical applications include aircraft components, fasteners, valves, hydraulic systems, and precision mechanical parts. It is also used in petrochemical, medical, and high-performance engineering environments where stress corrosion resistance, durability, and dimensional stability are essential. In New Zealand’s fabrication and industrial sectors, 17-4 PH tubing is valued for producing reliable, long-lasting, and high-performance components capable of withstanding demanding mechanical and environmental conditions.







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