ASME B16.5 Industrial Flange Supplier in South Africa, Class 150 Flanges available size range 1/2” to 60” Pretoria, Cape Town, Bloemfontein.
Omaa Metal Sources is a trusted manufacturer and supplier of forged and machined industrial flanges in South Africa, catering to key cities such as Johannesburg, Cape Town, Durban, Port Elizabeth, Pretoria, and Bloemfontein. We offer a wide range of flanges engineered to meet global and regional project requirements, with full compliance to standards like ASME B16.5, ASME B16.47 Series A/B, EN 1092-1, DIN 2633, and API 6A. Our flanges are widely used across sectors such as oil & gas, mining, petrochemical, power generation, marine, and construction in South Africa.
We supplies flanges in sizes from 1/2” to 60” (15 NB to 1500 NB) with pressure classes ranging from 150# to 2500#, and API-rated flanges up to 15000 psi. We manufacture our products in carbon steel (A105, LF2), stainless steel (304/316/321/347), duplex & super duplex (F51/F53/F55), and exotic alloys like Monel, Inconel, Hastelloy, and Cu-Ni 90/10 & 70/30. All products meet ASTM material standards and are supplied with EN 10204 3.1 / 3.2 test certificates, ensuring traceability and compliance with NACE MR0175 and client specifications.
Our manufacturing is backed by ISO 9001:2015, PED, and AD 2000 certifications. Every flange is inspected for dimensional accuracy, material properties, and pressure integrity. Whether it’s for mining operations in Mpumalanga, offshore terminals in Durban, or pipelines in Gauteng, Omaa Metal Sources ensures consistent quality and quick delivery across South Africa. Get a Quote.
Types of Flanges We Manufacture and Supply Across South Africa
Industrial Flange Specifications in South Africa
| Specification | Details |
|---|---|
| Size Range | 1/2” (15 NB) to 60” (1500 NB) & Custom Sizes |
| Class / Pressure Rating |
ANSI/ASME: 150#, 300#, 600#, 900#, 1500#, 2500# API: 2000#, 3000#, 5000#, 10000#, 15000# DIN: PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160, PN250 |
| Standards / Dimensions |
ASME B16.5 (Up to 24”) ASME B16.47 (Series A & B) (Above 24”) MSS SP-44 API 6A EN 1092-1 BS 4504 JIS B2220 DIN 2527, DIN 2631-2635 AWWA C207 |
| Connection Type | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Material Standards |
ASTM A105 / A105N (Carbon Steel) ASTM A350 LF2 (Low-Temperature Carbon Steel) ASTM A182 F304 / F304L / F316 / F316L (Stainless Steel) ASTM A694 F42, F52, F60, F65, F70 (High Yield Carbon Steel) ASTM A182 UNS S31803 / S32205 / UNS S32750 / UNS S32760 (Duplex & Super Duplex Steel) ASTM B564 UNS N06625, N08825 (Inconel & Incoloy) ASTM B381 (Titanium Gr.2, Gr.5) |
| Materials & Grades |
Carbon Steel: A105, A350 LF2, A694 F52-F70 Stainless Steel: 304, 304L, 316, 316L, 321, 347, 904L Duplex & Super Duplex Steel: F51, F53, F55 Alloy Steel: A182 F1, F5, F9, F11, F22, F91 Nickel Alloys: Inconel 600/625, Monel 400/K500, Hastelloy C22/C276 Copper Alloys: Cu-Ni 70/30, Cu-Ni 90/10 |
Industries We Serve in South Africa
- Offshore Terminals and FPSO Units in Durban
- Mining Projects in Mpumalanga and Northern Cape
- Petrochemical Plants in Secunda and Sasolburg
- Water Treatment Plants & Pipelines
- Thermal & Renewable Energy Projects
- Infrastructure & Marine Construction
Why Omaa Metal Sources is the Preferred Flange Supplier in South Africa
- Supplying flanges to Johannesburg, Durban, Cape Town, and beyond
- Engineering support for custom flange dimensions & pressure ratings
- All documents & certifications as per African project norms
- Expertise in handling critical shutdowns and EPC supplies