Trusted Circles & Rings Manufacturer and Supplier in Qatar – Stainless steel, Carbon Steel, Alloy Steel & Nickel-Based Materials
Mstar Enterprises is a trusted Circles & Rings supplier in Qatar, offering precision-manufactured components for demanding industrial and engineering applications. Our product range is designed to support high-pressure, high-temperature, and corrosion-prone environments commonly encountered in oil & gas, LNG, petrochemical, and power generation projects. With a strong focus on quality, accuracy, and consistency, we supply circles and rings that meet stringent international engineering and procurement standards.
As an experienced Circles & Rings supplier in Qatar, we provide products manufactured from certified stainless steel, carbon steel, alloy steel, duplex, and nickel-based alloys. Each circle and ring is produced under controlled manufacturing processes to achieve precise dimensions, uniform grain structure, and excellent mechanical properties. Our materials comply with ASTM, ASME, EN, and other global standards, ensuring suitability for structural, machining, and pressure-retaining applications.
Our supplied circles and rings are widely used in flange manufacturing, gasket fabrication, pressure vessels, heat exchangers, heavy equipment, and structural assemblies. Serving as a reliable Circles & Rings supplier in Qatar, Mstar Enterprises supports industries including oil & gas, LNG, petrochemical, power plants, construction, marine, shipbuilding, heavy engineering, and industrial manufacturing across the country.
With an efficient logistics and distribution network, Mstar Enterprises ensures timely delivery and uninterrupted supply to Qatar’s major industrial cities and project locations. All supplies are backed by EN 10204 certification, full material traceability, and project-specific documentation. Our commitment to quality assurance, delivery reliability, and technical compliance makes us a preferred Circles & Rings supplier in Qatar for EPC contractors, engineers, and procurement teams.
End-to-End Supply of Blank Circles, Flange Rings, Gasket Rings and Forged Rings Across Qatar – Doha, Al Rayyan, Al Wakrah, Mesaieed, Ras Laffan, Dukhan, Umm Salal, Al Khor, Lusail & Al Shamal
Technical Specifications of Steel Circles & Rings for Qatar
| Category | Details |
|---|---|
| Standards & Codes | ASTM: A240, A276, A240 (Stainless Steel); A105 (Carbon Steel); 182 (Alloy Steel); B168, B381 (Nickel Alloys) ASME: Section II, related codes as applicable EN / DIN: EN 10088 |
| Grades Available | Stainless Steel: 304, 304L, 316, 316L, 310, 321, 347, 904L Carbon Steel: ASTM A105, A350 LF2, A36, A516 Gr. 60/70, AISI 1018, 1045, 1060 Alloy Steel: ASTM A182 F5, F9, F11, F22, A29 / A322 (4140, 4340) Duplex & Super Duplex: UNS S31803 / S32205 (2205), UNS S32750 (2507), UNS S32760 High Nickel Alloys: Inconel 600, 625, 718; Monel 400, K500; Hastelloy C22, C276; Incoloy 800, 825; Nickel 200 / 201 Others: Copper Nickel (70/30, 90/10), Brass, Bronze, Titanium, Aluminium |
| Diameter Range | Up to 2000 mm or as per customer requirement |
| Thickness | 3 mm to 150 mm or custom as required |
| Forms & Manufacturing | Hot Rolled, Cold Rolled, Forged, CNC Machined, Plasma/Waterjet Cut |
| Surface Finishes | Mill Finish, Polished, Bright, Pickled, Black |
| Mechanical & Chemical Testing | Tensile Strength, Yield Strength, Elongation, Hardness (Rockwell/Brinell/Vickers), Charpy Impact Chemical Composition Analysis (Spectro/OES) Positive Material Identification (PMI) |
| Non-Destructive Testing | Ultrasonic Testing (UT), Eddy Current Testing, Visual & Dimensional Inspection, Straightness Check |
| Certification | Mill Test Certificates (MTC) as per EN 10204 3.1 / 3.2 Certificate of Compliance Heat Number Traceability Third-Party Inspection (SGS, BV, TUV, Intertek) available |
| Packaging | Standard export bundles & strapped Wooden crates/skids End-protected VCI film or corrosion inhibitor wrapping Custom marking, barcoding, and project-specific packaging available |
| Applications in Saudi Arabia | Oil & Gas (onshore & offshore platforms) Petrochemical Plants (Jubail, Yanbu) Refineries & Desalination Plants Power Plants & Energy Projects Construction & Infrastructure (bridges, metro, high-rise) Marine & Shipbuilding Heavy Machinery & Engineering Components |
| Supply Notes | Stock availability and MOQ depend on grade & form Lead times vary by size, grade, and finish Express delivery available to Riyadh, Jeddah, Dammam, Jubail, Al Khobar, and Yanbu |
Surface Finish of Circles & Rings
| ASF | As Cut / As Sheared Finish | MF | Machined / Turned Finish |
|---|---|---|---|
| BB | Shot Blasted / Grit Blasted | SF | Plain / Self Finish |
| P&P | Pickled & Passivated | POL | Polished / Ground Finish |
| HDG | Hot Dip Galvanized | BO | Black Oxide |
| OIL | Oiled / Anti-Rust Coated | VCI | VCI Film Protected |
Dependable Circles & Rings Export Services to Industrial Zones and Cities Throughout Qatar
Mstar Enterprises supplies high-quality circles and rings across Qatar, engineered for precision fabrication, heavy-duty machining, and pressure-critical applications. Manufactured from certified stainless steel, carbon steel, alloy steel, duplex, and nickel alloys, our products deliver superior material consistency, tight dimensional tolerances, and full compliance with international standards required for demanding industrial environments.
- Major Cities We Supply: Doha, Al Rayyan, Al Wakrah, Mesaieed, Ras Laffan, Dukhan, Umm Salal, Al Khor, Lusail, Al Shamal
- Industries We Serve: Oil & Gas, LNG, Petrochemical, Power Generation, Construction, Shipbuilding, Marine, Automotive, Aerospace, Heavy Engineering, and Manufacturing
Supported by a robust logistics and distribution network, Mstar Enterprises ensures uninterrupted supply and timely deliveries to Qatar’s key industrial zones. With EN 10204 certification, complete material traceability, and project-specific customization, our circles and rings are widely trusted by EPC contractors, engineers, and procurement teams supporting Qatar’s energy, infrastructure, and industrial projects.
