Ronwen Flanges, located in Cape Town, South Africa, has built a solid reputation as a reliable manufacturer and supplier of top-notch industrial flanges, with a particular focus on AISI 4130 flanges. Renowned for their precision engineering and robust performance, Ronwen Flanges caters to a variety of industries, including oil and gas, petrochemical, and power generation. Their AISI 4130 flanges are crafted under stringent quality standards to guarantee reliability in high-pressure and high-temperature settings. By blending cutting-edge manufacturing techniques with thorough testing, Ronwen Flanges provides flanges that adhere to international standards, ensuring clients receive safe, efficient, and durable solutions.
AISI 4130 flanges are constructed from a chromium-molybdenum low-alloy steel, featuring 0.28–0.33% carbon, 0.8–1.1% chromium, 0.15–0.25% molybdenum, along with trace amounts of manganese, silicon, and sulfur. This unique composition endows the flanges with remarkable strength, toughness, and resistance to wear and fatigue. Typically, they boast a tensile strength ranging from 560–700 MPa, yield strength between 460–630 MPa, and an elongation of 20–30%. The alloy’s outstanding hardenability, weldability, and corrosion resistance make it an excellent choice for both standard and elevated temperature applications that demand durability and reliability.
| Size | : | 1/2″ (15 NB) to 48″ (1200NB) |
| Standards | : | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Class / Pressure | : | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Standard | : | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Grade | C | Mn | Si | P | S | Fe | Mo | Ni | Cr |
| AISI 4130 | 0.28-0.33 | 0.40-0.60 | 0.15-0.35 | 0.035 max | 0.025 MAX | 97.3-98.22 | 0.15-0.25 | 0.50 max | 0.80-1.10 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.85 g/cm3 | 1432 ℃ | 560 | 460 | 21.50% |
Ronwen Flanges, a leading supplier in Cape Town, South Africa, offers an extensive selection of AISI 4130 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.
AISI 4130 flanges are extensively utilized in sectors that require high strength and consistent performance, such as oil and gas pipelines, chemical processing facilities, power generation systems, and pressure vessels. Their superior mechanical properties make them perfect for high-pressure and high-temperature applications. Moreover, these flanges are also employed in automotive, aerospace, and structural engineering fields where toughness and fatigue resistance are essential. Their adaptability allows for both welded and bolted assemblies, ensuring secure, leak-proof connections that promote the safe and efficient operation of industrial systems.
Yes, we offer custom sizes for AISI 4130 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.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | EN |
| AISI 4130 | 1.7218 | G41300 | JIS G4105 | BS 970 | 25CrMo4 |
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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