Shanxi Weigao Petroleum Drilling Tools Co.,Ltd. -

Shanxi Weigao Petroleum Drilling Tools Co.,Ltd.

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hexagonal kelly
Specification: 3¡± 3-1/2¡± 4-1/4¡± 5-1/4¡±
Detail: The Kelly is made from AISI4145H alloy steel, whole Kelly are hardened, with hardness up to 285-341BHN and charpy i***ct value¨R54J. We can guarantee the physical properties 1 inch under the pipe body surface. The inside dimen...

square kelly
Specification: 2-1/2¡± 2-7/8¡± 3¡± 3-1/2¡± 4-1/4¡± 5-1/4¡±
Detail: The Kelly is made from AISI4145H alloy steel, whole Kelly are hardened, with hardness up to 285-341BHN and charpy i***ct value¨R54J. We can guarantee the physical properties 1 inch under the pipe body surface. The inside dimen...

api petroleum drill collar
Specification: 3 1/8------11 inch
Detail: §¶89 §¶105 §¶121 §¶146 §¶159 §¶165 §¶178 §¶203 It's made from rolled or forged AISI4145H chrome-molybdenum steel. The content of chemical composition and microelement is controlled effectively throughout the whole process.Ac...

api petroleum drill pipe
Specification: 2 3/8------6 5/8 inch
Detail: Made from AISI 4145H alloy steel and fully heat treated, all its physical properties conform to the latest API Spec 7. Heavy drill pipe is the transition section between ordinary Kelly and drill collar. It can relieve the stre...


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