Crossover, pup joint and lift sub

Date: 04 Dec 2009

SFMC cross-over subs are made from 4145H alloy steel, that are heat-treated according to drill collar specifications to ensure a hardness range of 285-341. Brinell. Charpy “V” notch minimum impact strength of 40 ft-lb at 700F are guaranteed one inch below the surface. it acts as connecting and change-over, deliver torque function in different types of drill tools. All connections are phosphated or coppered coating to minimize galling on initial make-up and drilling operation.

Contact information:
Shanxi Fenglei Drilling Tools Co., Ltd
No. 188 Fenglei street, Houma city, Shanxi Province. P.R.China[043009]
Send message
Membership: Sign In, Or Register now.
[ Close ]   [ Print ]   [ Top ]
Best Viewed With Internet Explorer 6.0
© 2008 DRS iNNOVATIONS GROUP LTD. All Rights Reserved