Mechanical properties meet or exceed the requirements in API Spec 5DP.
Tool joints of drill pipe are welding neck joint with drill pipe, which is an important part of drill pipe. Tool joints made by Teda Special Pipe Co Ltd adopt high-quality structural steel and special heat treatment with Teda know-how. Thread of tool joints are machined by numerical control lathe to ensure their interchangeability. Surface of screw are copper-plated or phosphated, to achieve good adhension-prevention. Mechanical properties meet or exceed the requirements in API Spec 5DP.
u Raw Material Quality |
Raw material of Drill Pipe Joints is AISI 4137H. The physical quality has reached high- performance steel standard.
u Heat Treatment |
General mechanic properties of tool joints which are cast and afterwards stove-heat treated, are far beyond that are intermediate frequency heat treated on production lines.
u Excellent Toughness |
The absorbed energy of tool joints is far higher than the specifications of API 5DP.
u Traceability |
Tool Joints are given a code and recorded for traceability.
Tool Joint | Size | Nom Wt | Grade | OD of Pin and Box ±0.8 | ID of Pin+0.4,-0.8 | Bevel Dia of Pin and Box Shoulder ±6.4 | Pin Tong Space±6.4 | Box Tong Space±6.4 | Upset Neck Diameter Max |
kg/m | D | d | DF | LPB | LB | DPB DTF DSE | |||
NC26 or 2 3/8 IF | 2 3/8 EU | 9.9 | E75 | 85.7 | 44.45 | 82.95 | 177.8 | 203.2 | 65.09 |
X95 | 85.7 | 44.45 | 82.95 | 177.8 | 203.2 | 65.09 | |||
G105 | 85.7 | 44.45 | 82.95 | 177.8 | 203.2 | 65.09 | |||
NC31 or 2 7/8 IF | 2 7/8 EU | 15.49 | E75 | 104.8 | 53.98 | 100.41 | 177.8 | 228.6 | 80.96 |
X95 | 104.8 | 50.80 | 100.41 | 177.8 | 228.6 | 80.96 | |||
G105 | 104.8 | 50.80 | 100.41 | 177.8 | 228.6 | 80.96 | |||
S135 | 111.1 | 41.28 | 100.41 | 177.8 | 228.6 | 80.96 | |||
NC38 | 3 1/2 EU | 14.15 | E75 | 120.7 | 76.2 | 116.28 | 203.2 | 266.7 | 98.43 |
NC38 or 3 1/2 IF | 3 1/2 EU | 19.81 | E75 | 120.7 | 68.26 | 116.28 | 203.2 | 266.7 | 98.43 |
X95 | 127.0 | 65.09 | 116.28 | 203.2 | 266.7 | 98.43 | |||
G105 | 127.0 | 61.91 | 116.28 | 203.2 | 266.7 | 98.43 | |||
S135 | 127.0 | 53.98 | 116.28 | 203.2 | 266.7 | 98.43 | |||
23.09 | E75 | 127.0 | 65.09 | 116.28 | 203.2 | 266.7 | 98.43 | ||
X95 | 127.0 | 61.91 | 116.28 | 203.2 | 266.7 | 98.43 | |||
G105 | 127.0 | 53.98 | 116.28 | 203.2 | 266.7 | 98.43 | |||
NC40 or 4 FH | 3 1/2 EU | 23.0920.85 | S135 | 139.7 | 57.15 | 127.40 | 177.8 | 254.0 | 98.43 |
E75 | 133.4 | 71.44 | 127.40 | 177.8 | 254.0 | 106.36 | |||
X95 | 133.4 | 68.26 | 127.40 | 177.8 | 254.0 | 106.36 | |||
G105 | 139.7 | 61.91 | 127.40 | 177.8 | 254.0 | 106.36 | |||
S135 | 139.7 | 50.8 | 127.40 | 177.8 | 254.0 | 106.36 |
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API Drill Pipe Tool Joints
