Engineered to ASME B16.5, ASME B16.47, and EN 1092-1 standards with complete EN 10204 3.1 material traceability for North African industrial deployments.
As North Africa's fastest-growing industrial and renewable energy power hub, Morocco is executing nationwide infrastructure initiatives that demand elite-grade piping components.
Morocco holds over 70% of the world’s phosphate reserves. The massive expansion of OCP Group’s chemical processing hubs in Jorf Lasfar and Safi requires aggressive corrosion-resistant piping. Slip-On flanges in Duplex Stainless Steel (UNS S31803 / S32205) and Alloy 316L are vital for transporting acidic slurry, phosphoric acid, and industrial wastewater without joint failure.
To combat climate-induced water stress, Morocco is constructing large-scale reverse osmosis desalination plants in Casablanca, Agadir, and Dakhla. These high-salinity marine environments necessitate forged ASTM A350 LF2 low-temperature carbon steel and Super Duplex UNS S32750 Slip-On flanges engineered for PN10 to PN40 pressure ratings with rubber-lined or anti-corrosive epoxy coatings.
Morocco's "Offer Morocco" framework for green hydrogen places regions like Guelmim-Oued Noun and Dakhla-Oued Ed-Dahab at the forefront of global clean energy export. High-integrity forged Slip-On flanges engineered to ASME B16.5 Class 150/300 are extensively utilized in electrolyzer balance-of-plant (BOP) fluid networks, handling demineralized water and clean fuel conduits.
The expansion of Tanger Med II and the construction of the Nador West Med energy port require robust marine utility pipelines. Slip-On flanges provide fast alignment and cost-effective dual fillet welding on fuel bunkering lines, fire-protection water networks, and offshore loading arm manifolds subject to dynamic wave stress.
Understanding the mechanical benefits, stress calculations, and fitting advantages of Slip-On Pipe Flanges in medium to low-pressure industrial circuits.
Slip-On (SO) flanges, designated under ASME B16.5 and EN 1092-1 Type 12, are designed to slide over the outer diameter of the pipe before attachment. Unlike Weld Neck flanges that feature a long tapered hub requiring butt welding, Slip-On flanges are connected using two fillet welds: one placed internally within the flange hub bore and one externally at the back hub shoulder. This structural design provides substantial cost and installation benefits for engineering contractors in Morocco.
| Dimensional Standard | Nominal Pipe Size (NPS/DN) | Pressure Class / PN Rating | Standard Material Grades | Facing Types |
|---|---|---|---|---|
| ASME B16.5 | 1/2" to 24" (DN15 - DN600) | Class 150, 300, 600, 900, 1500 | ASTM A105, A350 LF2, A182 F304/F304L, F316/F316L | RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint) |
| ASME B16.47 Series A & B | 26" to 60" (DN650 - DN1500) | Class 75, 150, 300, 600 | ASTM A105, A694 F52/F60/F65/F70, A182 F51/F53 | RF (Raised Face), FF (Flat Face) |
| EN 1092-1 Type 12 / Type 01 | DN15 to DN2000 | PN6, PN10, PN16, PN25, PN40, PN63 | P245GH, P280GH, S235JR, 1.4301, 1.4404, 1.4462 | Type A (Flat Face), Type B1/B2 (Raised Face) |
| DIN Standards (DIN 2527/2576) | DN10 to DN1200 | PN6 to PN40 | RSt37-2, C22.8, 1.4571 (316Ti) | Form B, Form C, Form D |
Headquartered in Dingxiang County, Shanxi Province—China’s world-renowned "Hometown of Forging"—Shanxi Yuxin Casting & Forging Co., Ltd. combines 33+ years of metallurgical prowess with direct export advantages.
From raw steel billet selection and high-tonnage die forging to continuous heat treatment and high-precision CNC lathe machining, every stage takes place under one roof. This eliminates subcontractor markups and ensures identical chemical composition across large batch shipments.
Certified by TÜV Rheinland to ISO 9001:2015, Pressure Equipment Directive (PED 2014/68/EU), and AD 2000-Merkblatt W0. Every order is supplied with complete EN 10204 3.1 Material Test Certificates detailing mechanical tensile strengths, yield stress, impact values, and hardness numbers.
Leveraging streamlined ocean routes from Qingdao and Tianjin ports directly to Tanger Med Port and Casablanca Port. Flanges feature anti-rust oil or yellow varnish coatings, protective plastic end-caps, and heavy-duty fumigation-free plywood box packaging built to withstand ocean transit humidity.
Explore how YUXIN Slip-On Flanges are customized for high-stress operational environments across Morocco.
Challenge: High chloride content causing pitting corrosion and flange face deterioration on large-diameter cooling lines.
YUXIN Solution: Custom-forged DN1200 Slip-On Flanges manufactured from Super Duplex 2205 (1.4462) with serrated raised faces (125-250 µin AARH) for optimized spiral-wound gasket sealability under continuous tidal shock loads.
Challenge: Severe mechanical abrasion coupled with acidic slurry erosion in phosphate wash plants.
YUXIN Solution: Heavy-wall ASTM A105N normalized Slip-On Flanges fitted with internal rubber linings and post-weld stress relief (PWHT) heat treatment, extending joint fatigue life by over 300% in high-solid transport pipelines.
Challenge: Budget-sensitive mega urban distribution mains requiring rapid field deployment and leak-free joint sealing.
YUXIN Solution: EN 1092-1 Type 12 PN16 Slip-On Flanges forged in carbon steel S235JR with hot-dip galvanizing coating, allowing fast bolt alignment and high resistance to soil moisture corrosion.
Challenge: High-pressure gas metering stations connected to the Maghreb-Europe Gas Pipeline network requiring tight NDT verification.
YUXIN Solution: ASTM A350 LF2 Class 2 low-temperature Slip-On Flanges subjected to 100% Ultrasonic Testing (UT per ASME VIII Div 1) and Charpy V-Notch impact testing at -46°C.
Discover our full line of industrial forged flanges, engineered for high pressure, thermal expansion, and severe service conditions in North Africa.
Detailed technical insights regarding compliance, shipping, metallurgy, and flange customization.
Get in touch with Shanxi Yuxin’s direct engineering sales team today. Receive instant technical proposals, formal quotes, and EN 10204 3.1 material compliance support within 24 hours.
