Api Drill pipe is made from alloy steel. Acc.to API Spec.5DP. All threads are phosphated, copperized or cold worked. All connections are equipped with pressed steel thread protectors.
The drill collars are made of 4145H modified chromium-molybdenum alloy steel acc.to API Spec.7 and SY/T 5144.All threads can be phosphated, copperized or cold worked.
Integral Heavy Weight Drill Pipe
Integral heavy weight drill pipe is made from AISI 4145H alloy steel.acc.to API Spec.7 and SY/T5144. It is formed by hot forged and fully heat-treated.There is wear resistance hard banding on tool joints connections and central upset.The types of hard banding include Arno 100XT and 300XT.
Non-magnetic stabilizer is made from low carbon stainless steel researched by According to the requirements of contracts or agreements between supplier and customer,we can supply the finished non-magnetic stabilizer or blanks.
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