Stabilizer is made from AISI 4145H alloy steel acc.to API Spec.7.All threads are phosphated,copperized or cold worked

 Dimensions and types of connection tread
Mm(in) Both end thread size and type
mm in Drill string stabilizer Near-bit stabilizer
Top Bottom Top Bottom
121 4 3/4 NC35 internal thread NC35 External thread NC35 internal thread 3 1/2 REG internal thread
159 6 1/4 NC44 internal thread NC44 External thread NC44 internal thread
NC46 internal thread
4 1/2 REG internal thread
NC46 internal thread NC46 External thread
178 7 NC50 internal thread NC50 External thread NC50 internal thread 4 1/2 REG internal thread
203 8 NC56 internal thread NC56 External thread NC56 internal thread 6 5/8 REG internal thread
229 9 NC61 internal thread NC61 External thread NC61internal thread 7 5/8 REG internal or external thread

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Published in:2012-10-17 15:00
(1).Standard:API Spec.
(2).Material:AISI 4145H alloy steel
((3).Size:4 3/4”-9”
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