
Buttweld Cap
At Metrade, we supply a comprehensive range of buttweld caps that provide a secure and efficient seal for the ends of piping systems. These components create a permanent, leak-proof closure, preventing internal pressure loss and blocking external contamination. Each buttweld cap is precision-engineered to protect pipeline integrity, shielding it from damage, corrosion, and impurities that could affect performance.
Designed for strength and reliability, our products operate dependably even in the most demanding industrial settings, including oil and gas, petrochemical, and power generation sectors. Metrade follows strict international quality standards and applies meticulous attention to detail. Our solutions extend the lifespan of piping systems, reduce maintenance demands, and support consistent safety and efficiency. Whether used in high-pressure systems or general industrial applications, our cap range delivers lasting reliability and trusted performance.
Dimensions - 1/2" – 48"(Bigger size upon request)
Materials - Carbon Steel
- Low Temperature CS
- Stainless Steel
- Special Stainless Steel
- Alloy Steel
- Nickel Alloy
- Titanium Alloy
Material | Specification | Grades |
|---|---|---|
| Carbon Steel | ASTM A234 | WPB |
| Low Temperature Carbon Steel | ASTM A420 A860 | WPL6, WPL9, WPL3, WPL8 WPHY42, WPHY46, WPHY52, WPHY60, WPHY65, WPHY70 |
| Stainless Steel and Special Stainless Steel | ASTM A403 ASTM A815 | F51, F60, F53, F55, F61, F44, UNS N08367, UNS N08926 |
| Alloy Steel | ASTM A234 | AISI 4130 |
| Nickel Alloy 200/201 | B366 | UNS N02200/N02201 |
| Nickel Alloy 276 | B366 | UNS N10276 - Hastelloy C-276 |
| Nickel Alloy 400 | B366 | UNS N04400 - Monel 400 |
| Nickel Alloy 600 | B366 | UNS N06600 - Inconel 600 |
| Nickel Alloy 625 | B366 | UNS N06625 - Inconel 625 |
| Nickel Alloy 800H/800HT | B366 | UNS N08810/N08811 - Incoloy 800H/HT |
| Nickel Alloy 825 | B366 | UNS N08825 - Incoloy 825 |
| Titanium Alloy | B862 | Gr 1 / 2 / 5 / 7 |
A Buttweld Cap is a type of pipe fitting used to seal the end of a pipeline or pressure vessel, providing a permanent and leak-proof closure. It is welded onto the end of a pipe, forming a smooth, continuous joint that ensures structural integrity and prevents the entry of contaminants or leakage of process fluids. Buttweld caps are available in a wide range of sizes, schedules, and materials to suit different pressure and temperature requirements. Common materials include carbon steel, stainless steel, alloy steel, duplex and super duplex stainless steels, and nickel-based alloys. These fittings are widely used in industries such as oil and gas, petrochemical, power generation, water treatment, and chemical processing, where secure pipeline terminations and corrosion resistance are essential.

Buttweld Tee
Buttweld Elbow
Reducers
Buttweld Cap
Barred Tee
Bends