Ronwen Flanges, a top-notch manufacturer and supplier located in Cape Town, South Africa, specializes in high-quality **Stainless Steel Weld Neck Flanges** designed for high-pressure, high-temperature, and critical piping applications. Crafted from premium stainless steel, these flanges boast impressive corrosion resistance, mechanical strength, and long-lasting durability. Ronwen Flanges is committed to precision manufacturing and adheres strictly to international standards, making their weld neck flanges perfect for the **oil & gas, petrochemical, chemical processing, power generation, and marine industries**, where reliable, leak-proof connections and long-term safety are essential.
These **Stainless Steel Weld Neck Flanges** are primarily made up of **iron, chromium, and nickel**, featuring low carbon content and various alloying elements based on the stainless steel grade. They showcase remarkable **mechanical properties**, including a **tensile strength of 485–700 MPa**, **yield strength of 170–275 MPa**, along with excellent toughness, ductility, and fatigue resistance. These flanges provide outstanding protection against **corrosion, oxidation, and scaling**, ensuring they maintain structural integrity and reliable performance even in demanding high-pressure and high-temperature settings.
| Specification Of : | Stainless Steel Weld Neck Flange |
|---|---|
| JIS Standards | 5K, 10K, 40K, 16K 20K 30K, 63K |
| Size Of Bore Diameter Flange | NPS ≤ 10 |
| Manufacturer Of Standard Dimensions | EN-1092 Flange, ASME B16.48 Flange, API605 Flange, BS4504 Flange, EN1092 Flange, UNI Flange, ISO Flange, API7S-43 Flange, ANSI/ASME B16.5 Flange, API7S-15 Flange, MSS S44 Flange, IS 2062 Flange, ASME B16.36 Flange, DIN Flange, AWWA C207 Flange, B16.47 Series A & B Flange, BS1560-3.1 Flange, ISO70051 Flange, API Flange. |
| Minimum Pressure | 150# To 2500# |
| Flange Face Type | Raised Face, Groove And Small Tongue Groove, RTJ, Flat Face, Large Tongue & Large Male-Female And Small Male-Female, Lap-Joint Face. |
| Top Six Type Of Flange | Threaded Flange, Lap Joint Flange, Socket-Weld Flange, Blind Flange, Slip-On Flange, Weld Neck Flange |
| Standard Materials | Duplex Steel & Super Duplex Steel, Copper Nickel, Wrought Iron, Inconel, Mild Steel, Stainless Steel, Hastelloy, Cast Iron, Alloy Steel, Carbon Steel. |
| Thickness Length | NPS ≤ 18 |
| Size | (1/2″) To (48″) |
| Manufacturing Process |
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| Other Type Of Flange | Forged/ Plate/ Threaded |
| Application | Oil And Gas Industry Power Plants Industry Food Processing And Manufacturing Waterworks Systems Fossil Fuel Power Plants Nuclear Power Application Municipal Pipe Systems |
Ronwen Flanges, a leading supplier in Cape Town, South Africa, offers an extensive selection of Stainless Steel Weld Neck 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.
You’ll often find **Stainless Steel Weld Neck Flanges** in **high-pressure pipelines, pumps, valves, heat exchangers, and pressure vessels**. Their tapered hub design promotes smooth stress distribution and minimizes turbulence in the flow, making them ideal for **refineries, chemical plants, offshore platforms, and marine systems**. The blend of **strength, corrosion resistance, and ability to handle stress** makes weld neck flanges a go-to choice for **critical industrial applications that demand durability and safety**.
| ASME/ANSI B 16.5 | Welding Neck Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.47 | Blind Flange [Series A & B],Welding Neck Flange |
| PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
| ASME/ANSI B 16.36 | Welding Neck Flange |
| PRESSURE CLASS | 300, 400, 600, 900, 1500, 2500 |
| PRESSURE CLASS | PN 2.5 TO PN 40 |
| BS 4504[PART 1] | Hubbed Slip-On |
| PRESSURE CLASS | PN 2.5 TO PN 400 |
| BS 1560 BOSS | Hubbed Slip-On Hubbed Threaded |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| BS10 | Plate Slip-On Flange, Slip-On Boss Flange |
| TABLE | D, E, F, H |
| DIN FLANGES | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673 |
| PRESSURE CLASS | PN 6 TO PN 100 |
Yes, we offer custom sizes for Stainless Steel Weld Neck 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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