Ronwen Flanges, a top-notch manufacturer and supplier located in Cape Town, South Africa, specializes in high-quality **Stainless Steel 17-4 PH Flanges** that are designed for outstanding strength, corrosion resistance, and durability. Crafted from premium 17-4 PH stainless steel, these flanges deliver excellent mechanical performance thanks to **precipitation hardening**, which strikes a perfect balance between high hardness and good toughness. Ronwen Flanges is committed to precision manufacturing and follows international standards, making their 17-4 PH flanges perfect for industries like **chemical processing, petrochemical, marine, oil & gas, aerospace, and power generation**, where dependable performance in high-stress, corrosive environments and elevated temperatures is essential.
These **Stainless Steel 17-4 PH Flanges** mainly consist of **iron, 17% chromium, 4% nickel, along with small amounts of copper and columbium/tantalum**, which give them their precipitation-hardening characteristics. They boast impressive **mechanical properties**, featuring a **tensile strength of 1100–1400 MPa**, a **yield strength of 950–1200 MPa**, and remarkable toughness and ductility. These flanges are built to maintain their structural integrity even in corrosive settings, exposure to seawater, and moderate high temperatures, providing exceptional resistance to stress corrosion cracking and oxidation.
| Grade | C | Mn | Si | P | S | Cr | Mo |
|---|---|---|---|---|---|---|---|
| SS 17-4PH | 0.07 max | 1.0 max | 1.0 max | .07 max | .03 max | 17.5 – 15.0 | .05 |
| Ultimate Tensile Strength, psi | Yield Strength, psi | Elongation | Rockwell Hardness |
|---|---|---|---|
| 160,000 | 145,000 | 5% | C35 |
Ronwen Flanges, a leading supplier in Cape Town, South Africa, offers an extensive selection of Stainless Steel 17-4 PH flanges, including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.
| STANDARD | WERKSTOFF NR. | UNS | JIS | AFNOR | EN |
|---|---|---|---|---|---|
| SS 17-4PH | 1.4542 | S17400 | SUS 630 | Z6CNU17-04 | X5CrNiCuNb16.4 |
You’ll find **Stainless Steel 17-4 PH Flanges** commonly used in **piping systems, valves, pumps, pressure vessels, and aerospace components** where high strength and corrosion resistance are a must. They’re particularly suited for **offshore platforms, chemical plants, refineries, marine systems, and high-performance industrial applications**, ensuring leak-proof, durable connections. With their unique blend of hardness, toughness, and corrosion resistance, 17-4 PH flanges are the go-to choice for **critical and high-performance industrial operations**.
Yes, we offer custom sizes for Stainless Steel 17-4 PH flanges to meet specific project needs. Our team at Ronwen Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@ronwenflanges.co.za.
We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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