Ronwen Flanges, a reputable manufacturer and supplier located in Cape Town, South Africa, specializes in high-quality SS400 Flanges tailored for general-purpose industrial piping systems. Crafted from low-carbon structural steel, these flanges boast excellent weldability, machinability, and mechanical strength, making them perfect for pipelines, machinery, and structural applications. When you choose SS400 Flanges from Ronwen Flanges, you can count on reliable, leak-proof connections and long-lasting performance in moderate-pressure settings across various industries, including construction, water treatment, chemical processing, and general engineering.
The composition of SS400 Flanges includes carbon, manganese, phosphorus, sulfur, and silicon in carefully controlled amounts. This blend ensures good tensile and yield strength, along with sufficient ductility and toughness for industrial and structural uses. While they do offer moderate corrosion resistance, adding protective coatings like paint, galvanizing, or powder coating can significantly boost their durability in exposed environments.
Ronwen Flanges, a leading supplier in Cape Town, South Africa, offers an extensive selection of SS400 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.
| Specifications | ASTM SS400 and ASME SS400 |
|---|---|
| ASME B16.5 Carbon Steel SS400 Flanges size range | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
| Carbon Steel SS400 Flanges Standards | ANSI/ASME B16.5, B16.48, BS4504, B16.47 Series A & B, EN-1092, BS 10, DIN, ASME Flanges, ANSI Flanges, DIN Flanges, BS Flanges, GOST Flanges,EN Flanges |
| Carbon Steel SS400 Flanges Standard DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| Carbon Steel SS400 Flanges Standard ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Carbon Steel SS400 Flanges Standard UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Carbon Steel SS400 Flanges Standard JIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K |
| Carbon Steel SS400 Flanges Standard EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Main Types | Forged / Threaded / Screwed / Plate |
| Flange supporting material | Gasket, Ring Joint, Flange Bolts |
| Carbon Steel SS400 Pipe Flanges Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Production technique |
|
| Connect Type/ Flange Face Type | Ring Type Joint (RTJ), Raised Face (RF), Large Male-Female (LMF), Flat Face (FF), Lap-Joint Face (LJF), Male-Female (SMF), Small Tongue & Groove, Large Tongue & Groove |
| Most common types of Carbon Steel SS400 Flanges |
|
| Special design | As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations Carbon Steel SS400 Flanges Threaded Flanges, Socketweld Flanges, Slip-On Flanges, Blind Flanges, Weld Neck Flanges |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| Origin | Indian / West Europe / Japan / USA / Korean |
| Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| Specialized manufacturer of |
|
|
Element |
Weight % |
|
Carbon |
0.08 – 0.15 |
|
Silicon |
0.15 – 0.50 |
|
Manganese |
0.30 – 0.60 |
|
Phosphorus |
0.025 max * |
|
Sulphur |
0.025 max * |
|
Molybdenum |
0.90 – 1.10 |
|
Chromium |
2.00 – 2.50 |
|
Nickel |
0.5 max |
Property | Values |
Ultimate Tensile Strength * | 95 min Ksi (655 Mpa) |
0.2 % Yield Strength * | 75 min Ksi (517 Mpa) |
Elongation * | 17 % min |
Reduction of Area * | 35 % min |
Charpy Impact Toughness | 42 mean/ 33 min J at –18o C |
Hardness | 197 – 237 BHN (75 Ksi min) |
SS400 flanges are widely used in various industrial applications due to their excellent strength, weldability, and cost-effectiveness. Commonly found in construction, piping systems, and machinery, these flanges are ideal for joining pipes, valves, and other components. They are used in water treatment plants, oil and gas pipelines, and HVAC systems, offering reliable sealing and pressure resistance. SS400 flanges are also employed in the automotive and shipbuilding industries, providing durability in high-stress environments. Their resistance to corrosion and ease of fabrication make them versatile for diverse engineering projects.
Yes, we offer custom sizes for SS400 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.
These flanges find their place in pipelines, water supply systems, mechanical equipment, and industrial fabrication projects. Available in a range of types such as weld neck, slip-on, blind, socket weld, and threaded flanges, SS400 Flanges provide secure, cost-effective, and dependable connections. Their combination of mechanical strength, affordability, and versatility makes them a go-to choice for many industrial applications.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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