X

Spiral drill collar


The spiral drill collar are made from 4145H modified chromium-molybdenum alloy steel acc.to API Spec.7 and SY/T5144.All threads can be phosphated,copperised or cold worked.All threads are machined CNC Lathes-Double-shouldered and special threads,and the max dimeter of drill collar is 14inch.
◆   Size

 
 
 
OD A
Depth of cut
mm
±25.4
Pitch
mm
B
Depth of cut
mm
 
mm in
98.4 3 7/8 4.0±0.79 914  
101.6-111.1 4-4 3/8 4.8±0.79 914
114.3-130.2 4 1/2-51/8 5.6±0.79 965
133.4-146.1 5 1/4-5 3/4 6.4±0.79 1067
149.2-161.9 5 7/8-6 3/8 7.1±1.59 1067
165.1-177.8 6 1/2-7 7.9±1.59 1168
181.0-200.0 7 1/8-7 7/8 8.7±1.59 1626 5.6±0.79
203.2-225.4 8-8 7/8 9.5±1.59 1727 6.4±0.79
228.6-250.8 9-9 7/8 10.3±1.59 1829 7.1±1.59
254.0-276.2 10-10 7/8 11.1±1.59 1930 7.9±1.59
279.4 11 11.9±1.59 2037 8.7±1.59

Products List

Contact us

Tel: 0086-371-65807516 / 65807517 / 65807518
Fax: 0086-371-65807519
Skype : weinindustry2004
MSN: weinindustry@hotmail.com
E-mail:huangwei@hawein.com
             weinindustry@371.net
Room1403, A Building(10#),Jincheng Oriental International, CBD Neihuan Road, Zhengdong New District, Zhengzhou, P.R.China
 

Products show

Spiral drill collar
Published in:2012-10-12 15:47
        (1).Standard:API Spec.7 and SY/T5144
        (2).Material:4145H modified chromium-molybdenum alloy steel
        (3).Size:3 7/8”-11”
     
  • *title
  • *Email
  • *message