Carbon Steel (CS) Butt Weld (B/W) Stub End
The Carbon Steel Butt Weld Stub End is a pipe-end fitting designed to pair with a lap joint (Van Stone) flange — welded onto the pipe at one end with a lap face on the other for flange contact. This combination allows the flange to rotate freely for easy bolt alignment and quick dismantling for maintenance. Manufactured from high-grade ASTM A234 WPB carbon steel and compliant with ASME B16.9, MATC’s CS butt weld stub ends provide a reliable, leak-tight, cost-effective flange connection for oil & gas, petrochemical, power generation and industrial pipelines across UAE and GCC. Mustafa Ashqar Trading LLC (MATC) stocks a wide range of stub ends in Dubai for industrial buyers and contractors.
Specifications
| Detail | Information |
|---|---|
| Type | Stub End, Butt Weld (B/W) — for lap joint flange |
| Body Material | High-grade Carbon Steel (ASTM A234 WPB or equivalent) |
| Configuration | Butt weld on one end, lap face on the flange end |
| Patterns | Long Pattern (MSS-SP-43) and Short Pattern (ASME B16.9) |
| Size Range | 1/2″ to 24″, custom and larger sizes on request |
| Wall Thickness | SCH 10 to SCH XXS |
| Manufacturing Standard | ASME B16.9 / MSS-SP-43 |
| Mating Flange | Lap Joint Flange (Van Stone) |
| Heat Treatment | Normalized for enhanced strength |
| Surface Finish | Black painted / Anti-rust coated (custom finishes on request) |
| Customization | Sizes, schedule, marking and finish |
| Certifications | Mill test certificate (MTC) and quality assurance documents available |
Need Carbon Steel Butt Weld Stub Ends in Dubai or bulk supply across UAE? Our team at MATC is ready to help with pricing, size selection and fast delivery.
Key Features
- High-grade carbon steel construction (ASTM A234 WPB) for strength and durability under pressure
- Designed for lap joint (Van Stone) flange systems — the flange slides freely over the stub end
- Quick assembly and dismantling — no need to align bolt holes, ideal for frequent maintenance
- Cost-effective flanging solution — use a cheaper flange material with expensive pipe material
- Available in Long Pattern (MSS-SP-43) and Short Pattern (ASME B16.9) to suit different applications
- Wide size range from 1/2″ up to 24″ — with larger custom sizes available on request
- Multiple schedules available — SCH 10 through SCH XXS to suit any pressure and service condition
- Compliant with ASME B16.9 / MSS-SP-43 — the global standards for butt-weld stub ends
- Heat treated (normalized) for enhanced mechanical strength and structural integrity
- Corrosion-resistant finishes — black painted, anti-rust coated or custom coatings available
- Beveled weld end ensures full-penetration welds for maximum joint strength
- Customization options — sizes, schedules, markings and finishes on request
- Certified quality assurance with mill test certificates and material traceability
- Stocked in Dubai by MATC for fast supply across UAE and GCC
- Ideal for oil & gas, petrochemical, chemical processing, power generation, water treatment, construction, shipbuilding, HVAC and aerospace applications across UAE and GCC
