New Rotary Drill Pipe Flush Joint 3-1/2"O.D 6m Length API 2-3/8" IF
For Oil Well
1, Drill pipe body raw material
Drill pipe body and tools joint raw material are high-performance
alloy steel according with API standard and strictly checked by
chemical content, metallographic structure,geometric dimension,NDT
tests,etc to ensure the stable quality of the product.
2,Process of drill pipe body
Pipe end is upsetted by National Oil Well equipment with 1250 tons
weight. The upsetted area is more thicker, no wrinkle and longer
smooth transition zone from upset to normal thickness area. Pipe
body heat treatment is processed by over-type automatic heat
treatment furnace and straightening machine with whole course
hardness test and Ultrasonic inspection.
3,Process of friction welding
Friction welding is processed by MTI equipment for the pipe body
and joint,automatically finished by computer control,and the after
welding process such as welding area heat treatment, inner and
outside grinding,magnetic particle inspection may guarantee high
quality of finished product.
4,Tensile performance parameters
API Steel Grade: E-75
Yield strength min: 75,000 Psi~ 517Mpa
Yield strength Max: 105,000 Psi~ 724Mpa
Tensile strength min: 100,000Psi -- 689Mpa
| Product Name | Rotary Drill Pipe |
| Thread | API 2-3/8" IF |
| Diameter | 89mm |
| Length | 6m |
| Thickness | 8.8mm |
| Order Information | Thread + Length + Diameter+Thickness |
| MOQ | 1 Pieces |
| Color | Black or based on customer requirements. |
Specifications:
OD/mm(in) | Weight/(kg/m) | Thickness/mm | ID/mm | Cross-section/cm2 | Connection |
60.3(23/8) | 9.892 | 7.11 | 46.1 | 11.89 | NC26 |
73.0(27/8) | 15.475 | 9.19 | 54.64 | 18.44 | NC31 |
88.9(31/2) | 19.788 | 9.35 | 70.212 | 3.36 | NC38 |
88.9(31/2) | 23.061 | 11.41 | 66.09 | 27.77 | NC38 |
101.6(4) | 17.63 | 6.65 | 88.29 | 19.85 | NC40 |
101.6(4) | 20.828 | 8.38 | 84.84 | 24.55 | NC46 |
114.3(41/2) | 26.933 | 9.47 | 95.35 | 31.2 | NC50 |
114.3(41/2) | 29.756 | 10.92 | 92.46 | 35.47 | NC50 |
127(5) | 24.2 | 7.52 | 111.96 | 28.22 | NC50 |
127(5) | 29.011 | 9.19 | 108.6 | 134.03 | NC50 |
139.7(51/2) | 32.583 | 9.17 | 121.36 | 37.6 | 5 1/2 FH |
139.7(51/2) | 36.754 | 10.54 | 118.62 | 42.77 | 5 1/2 FH |
All products processing and quality control are in accordance with
API SPEC Q1 and ISO 901:2000 quality management standard.
For further improve the quality of management we set an independent
API quality management audit team who make supervising and
examining to the quality system operation so as to continuously
improve product quality and employee’s quality awareness.
In whole production,quality control procedure includes tracking
production process for each product,statistical analysis of quality
and trace ability system.
Our company has a large number of experienced production and
quality and technical experts and professional service engineers to
provide technical service at any time and help customer solve
problems.
