Origin |
China |
Brand Name |
Eternal |
�e could supply all kinds of drilling pipes forging, we choose excellent alloy steel�ISI 4130,AISI 4140, AISI 4330,AISI 4340, AISI 8620 etc.Our customers' drilling pipes have been used on 10000 meter�oil well on land or 5000 meter oil well on the sea, some drilling pipes have endured -50 C degree low temperature working condition, our customer get the longest working time.
���We have a series of inspection equipment and test appliance, including chemical analysis ,metallographic analysis,mechanical property test ,charpy impact test ,utrasonic test, magnetic article test etc .
�� All of the ingot is melted by LF + VOD furnace. We could choose ESR raw material according to the customers' requirements. On this condition we could ensure that P,S content is lower than 0.010% , H content is lower than 1.8 PPM.
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