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| Product Name | API Connection Casing For Oil Pipe |
| Standard | API 5L, API 5CT, API 5DP |
| Grade | J55, K55, N80, L80, C90, T95, P110, Q125, V150, ST52, B, X42, X46 |
| Outer Diameter | 1.050" ~ 20" (26.67 mm ~ 508 mm) |
| Wall Thickness | 2.87 ~ 16.13 MM |
| Length | R1: 4.88~7.62M; R2: 7.62~10.36M; R3: 10.36~14.63M |
| End Type | LTC / STC / EUE / NUE / VAM / XC / NPT / RP |
| Pipe Ends | Under 2 inch plain end; 2 inch and above Beveled. Plastic caps (small OD), Iron protector (large OD). |
| Surface Treatment | Black paint, varnish, oil, galvanized, anti-corrosion coatings |
| Certificates | API 5L, ISO 9001:2008, SGS, BV, CCIC |
| Testing | Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size Inspection, Hydraulic Testing, X-ray Test. |
| Packaging | Packaged in bundles; wooden cases. |
| Application | Oil pipe; Gas pipe; Drill pipe |
| Our Advantages | Reasonable price, Abundant stock, 19+ years expertise in steel export. |





Founded in 2005, our company is situated adjacent to one of the largest steel pipe manufacturing bases. We are a prominent agent for major steel groups including Chengdu Steel, Baotou Steel, Anshan Iron and Steel, Baoshan Steel, and Tianjin Steel Pipe Group. With a standardized management system and experienced staff, we currently thrive in international sales.
Our facilities boast three cutting-edge alloy production lines with an annual capacity exceeding 100k tons and seven advanced seamless production lines yielding over 400k tons annually. Our comprehensive product range encompasses all types of seamless steel pipes, steel plates, steel bars, steel gratings, section steel, galvanized coils, and pre-painted coils.