Ronwen Flanges, a top-notch manufacturer and supplier located in Cape Town, South Africa, specializes in high-quality **Stainless Steel 304 Flanges** that are celebrated for their exceptional corrosion resistance, durability, and strength. Crafted from premium 304 stainless steel, these flanges ensure reliable, leak-proof connections in piping systems that face tough and corrosive conditions. With a commitment to precision engineering and adherence to international standards, Ronwen Flanges’ 304 stainless steel flanges are perfect for **chemical, petrochemical, oil & gas, marine, food processing, and general industrial applications**, where long-lasting performance, safety, and operational reliability are crucial.
**Stainless Steel 304 Flanges** are made up of **iron, 18–20% chromium, and 8–10% nickel**, featuring low carbon content that grants them excellent corrosion resistance and mechanical strength. They boast impressive **mechanical properties**, including a **tensile strength of 505–750 MPa**, **yield strength of 215–275 MPa**, along with good ductility and toughness. These flanges are highly resistant to oxidation, scaling, and corrosion in various environments, including atmospheric, chemical, and mildly acidic conditions, ensuring they remain durable and reliable across different industrial settings.
| Specifications List | ASTM A182 / ASME SA182 |
|---|---|
| Class / Pressure Rating | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Size Chart | 1/2″ (15 NB) to 48″ (1200NB) |
| ASTM Standards | ANSI/ASME B16.5, B16.48, BS4504, B 16.47 Series A & B, BS 10, EN-1092, DIN, etc. |
| Standard s | ANSI, ASME, BS, DIN, EN etc. |
Ronwen Flanges, a leading supplier in Cape Town, South Africa, offers an extensive selection of Stainless Steel 304 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.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
| SS 304 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 11 | – |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
**Stainless Steel 304 Flanges** find extensive use in **piping systems, pumps, valves, heat exchangers, pressure vessels, and structural applications**. They are particularly suited for **marine, chemical plants, food processing, water treatment, and oil & gas industries**, where exposure to corrosive substances, moisture, and moderate temperatures is a regular occurrence. These flanges guarantee leak-proof connections, operational safety, and a long service life, making them the go-to choice for both **critical and non-critical industrial applications** that demand high-quality stainless steel performance.
| NPS (in.) | Stainless Steel 304 Flanges Dimensions | ||||
|---|---|---|---|---|---|
| Dia. of Flange (in.) | No. of Bolts | Dia. of Bolts (in.) | Dia. of Bolt Holes (in.) | Bolt Circle (in.) | |
| 1/4 | 3-3/8 | 4 | 1/2 | 0.62 | 2-1/4 |
| 1/2 | 3-1/2 | 4 | 1/2 | 0.62 | 2-3/8 |
| 3/4 | 3-7/8 | 4 | 1/2 | 0.62 | 2-3/4 |
| 1 | 4-1/4 | 4 | 1/2 | 0.62 | 3-1/8 |
| 1-1/4 | 4-5/8 | 4 | 1/2 | 0.62 | 3-1/2 |
| 1-1/2 | 5 | 4 | 1/2 | 0.62 | 3-7/8 |
| 2 | 6 | 4 | 5/8 | 0.75 | 4-3/4 |
| 2-1/2 | 7 | 4 | 5/8 | 0.75 | 5-1/2 |
| 3 | 7-1/2 | 4 | 5/8 | 0.75 | 6 |
| 3-1/2 | 8-1/2 | 8 | 5/8 | 0.75 | 7 |
| 4 | 9 | 8 | 5/8 | 0.75 | 7-1/2 |
| 5 | 10 | 8 | 3/4 | 0.88 | 8-1/2 |
| 6 | 11 | 8 | 3/4 | 0.88 | 9-1/2 |
| 8 | 13-1/2 | 8 | 3/4 | 0.88 | 11-3/4 |
| 10 | 16 | 12 | 7/8 | 1 | 14-1/4 |
| 12 | 19 | 12 | 7/8 | 1 | 17 |
| 14 | 21 | 12 | 1 | 1.12 | 18-3/4 |
| 16 | 23-1/2 | 16 | 1 | 1.12 | 21-1/4 |
| 18 | 25 | 16 | 1-1/8 | 1.25 | 22-3/4 |
| 20 | 27-1/2 | 20 | 1-1/8 | 1.25 | 25 |
| 24 | 32 | 20 | 1-1/4 | 1.38 | 29-1/2 |
Yes, we offer custom sizes for Stainless Steel 304 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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