| Standard | API Spec 5DP / ISO 11961; tool joints per API Spec 7-2 |
| Pipe Body OD | 2⅜″ – 5½″ standard range (up to 7⅝″ available on request) |
| Most Common Sizes | 2⅜″ (73.0 mm), 2⅞″ (73.0 mm), 3½″ (88.9 mm), 4½″ (114.3 mm), 5″ (127.0 mm), 5½″ (139.7 mm) |
| Steel Grades | E75, X95, G105, S135 (higher grades = higher tensile/torsional capacity) |
| Pipe Body Wall Thickness | Example: 5″ pipe — 0.362″ (9.19 mm) standard; 0.430″ (10.92 mm) heavyweight |
| Upset Style | IU (internal upset), EU (external upset), IEU (internal & external upset) |
| Tool Joint Connection | NC26, NC31, NC38, NC40, NC46, NC50, NC56, 5½ FH, 6⅝ FH; special threads on request |
| Tool Joint OD (typical) | Example: NC38 ≈ 4¾″–5″; NC50 ≈ 6¼″–6⅝″ (varies with pipe size & connection) |
| Length Range | R1: 5.49–6.71 m; R2: 8.23–9.14 m; R3: 11.58–13.72 m |
| Weld | Friction welded; weld strength ≥ pipe body strength |
| Internal Coating | Optional: TK34, TC2000, Arnco 100XT/200XT/300XT, etc. |
| Inspection | Mechanical properties per API 5DP; hydrostatic test; NDT; thread gauge inspection |
| Typical Export Form | With steel protectors on threads; bundled; Range 2 / Range 3 joints |