Seamless tube unlike welded tubes, are preferred for applications where strength. Resistance to corrosion, microstructure and product life is important. The company has adequate heat treatment facility to make OCTG range in higher grade like N-80, L-80, C-95, P-110. ISTIL Seamless is pioneer in manufacturing Seamless Steel Pipe. It is one of the well known brands for Seamless Steel Pipe and Tubes both in terms of capacity and product range. The company specializes in providing Piping Solutions (Steel, Alloy) to Oil and Gas (Exploration, Drilling Transmission etc.), Petrochemical, Structural & Mechanical Sectors across the globe. Major Quality Accreditations: manufacturing facilities are accredited with renowned international agencies for certifications of API 5L, API 5CT, API 5DP, Quality Systems ISO 9001:2008, Environment Management ISO 14001:2008 and Occupational Health and Safety management Systems OHSAS 18001:2007, PED Certificate, CE Certificate for structural pipes. Major International Client Approvals: products are on approved list of various national and International end-user Oil and Gas companies for their Exploration and transportation programs. International Exposure : exporting close to 40% of its turnover to International markets.
| Piping Variant | Dimensional Capability ( Outer Diameter) | Standards & Grades | Critical Application |
| Seamless Line Pipe | ½” - 18” | APl 5L (Grade-B to X-70) ASTM (A106 Gr-B, A 53, A333 Gr -6 EN 10216, EN 10210, EN 10255, EN10297. ASME/ASTMSA/A-53 /106 /178/ 179/ 192/ 209/210/213/214/335 |
Sour, Non sour Structural Application Mechanical Boiler application |
| Seamless Line Pipe | 20” - 24” | APl 5L (Grade-B to X-70) ASTM (A106 Gr-B, A 53, A333 Gr -6 EN 10216, EN 10210, EN 10255, EN10297. ASME/ASTMSA/A-53 /106 /178/ 179/ 192/ 209/210/213/214/335 | Sour, Non sour Structural Application Mechanical Boiler application |
| Seamless Line Pipe | >28" | ||
| Seamless Tubing | 2 3/8”-4 ½” | APl 5CT (J55, K55, N80Q, N80, L80, P110, Q125, T95, C110). | EUE, NUE |
| Seamless Casing | 4 ½”-13 3/8” | APl 5CT (J55, K55, N80Q, N80, L80, P110, Q125, T95, C110). API Connections (BTC, LTC, STC) | High Collapse, Special Drift |
