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:
Company:
Address:
Shanxi Fenglei Drilling Tools Co., Ltd
No. 188 Fenglei street, Houma city, Shanxi Province. P.R.China[043009]
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