Home > Pipe Fittings > Stainless Steel 17-4 Ph Pipe Fittings
Mitchell Stainless, a trusted manufacturer and supplier in Hamilton, New Zealand, offers premium Stainless Steel 17-4 PH pipe fittings designed for high-strength, corrosion-resistant, and precision piping applications. 17-4 PH is a precipitation-hardening stainless steel that provides excellent tensile strength, hardness, and toughness after heat treatment, making it ideal for chemical, marine, aerospace, and industrial process systems. Mitchell Stainless ensures each pipe fitting meets stringent quality standards, offering smooth finishes, accurate dimensions, and consistent mechanical performance. These fittings are engineered to deliver reliable, long-lasting connections in piping systems exposed to stress, corrosion, and demanding operating conditions.
Stainless Steel 17-4 PH pipe fittings are composed primarily of iron, with 15–17% chromium, 3–5% nickel, 3–5% copper, and small amounts of manganese, silicon, and carbon. This composition allows the alloy to achieve high strength, hardness, and corrosion resistance after precipitation hardening. Chromium and nickel provide oxidation resistance and mechanical stability, while copper enhances hardness and tensile strength. The alloy ensures durability and structural integrity, making 17-4 PH pipe fittings suitable for demanding environments where pressure, corrosion, and mechanical stresses are critical factors.
| Grade | Properties | Imperial |
|---|---|---|
| 17-4 Ph | Density | 7.80 g/cm3 |
| Tensile strength | 170000 psi | |
| Yield strength | 140000 psi | |
| Modulus of elasticity | 29600 ksi |
| TYPE | Cr | Ni | Al | C | Mn | P | S | Si |
|---|---|---|---|---|---|---|---|---|
| 17-4 | min: 16.0 max: 18.0 | min: 6.75 max: 7.75 | min: 0.75 max: 1.50 | 0.09 max | 1.00 max | 0.05 max | 0.03 max | 1.00 max |
| Grade | Tensile Strength ksi (MPa) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Rockwell) MAX |
|---|---|---|---|---|
| 17-4 | 130 | 40 | 35 | B85 |
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At Mitchell Stainless, we are proud to be the largest supplier, manufacturer, and exporter of Stainless Steel 17-7 Ph Pipe Fittings in Hamilton, New Zealand. Our cutting-edge solutions cater to all your piping needs. With state-of-the-art production facilities strategically located in the New Zealand, we maintain a vast inventory of over 16,000 tons of premium-quality materials, ensuring we have the stock readily available to meet your demands.
Stainless Steel 17-4 PH pipe fittings are high-strength, corrosion-resistant components designed for demanding applications. They offer excellent durability and performance in aerospace, marine, and industrial environments.
SS 17-4 PH butt weld pipe fittings are high-strength, corrosion-resistant components that provide seamless, robust connections. Ideal for high-pressure and high-temperature applications, they ensure durability and reliable performance.
SS 17-4 PH socket weld pipe fittings are high-strength, corrosion-resistant components offering secure, leak-proof connections. They are suitable for high-pressure and high-temperature applications, ensuring long-lasting durability and reliability.
Stainless Steel 17-4 PH seamless fittings are high-strength, corrosion-resistant components crafted without joints. They provide robust, leak-proof connections for high-stress and high-temperature applications, ensuring durability and performance.
SS 17-4 PH cross pipe fittings are high-strength, corrosion-resistant components designed to connect four pipes at a central junction. They ensure robust, reliable connections in high-pressure and high-temperature environments.
Stainless Steel 17-4 PH tee fittings connect three pipes at a right angle, offering high strength and corrosion resistance. They are ideal for high-stress and high-temperature applications, ensuring durability and reliability.
Stainless Steel 17-4 PH pipe fittings are widely used in chemical processing plants, petrochemical industries, marine and offshore piping systems, aerospace applications, and high-pressure industrial systems. Typical applications include elbows, tees, reducers, flanges, and couplings for high-strength piping networks exposed to corrosion and mechanical stress. They are also suitable for maintenance and repair projects requiring reliable, durable, and high-performance fittings. In New Zealand’s industrial and fabrication sectors, 17-4 PH pipe fittings are valued for providing secure, long-lasting, and corrosion-resistant connections capable of withstanding high-pressure, high-stress, and aggressive environments.







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