API S135 Drill Pipe Chemical Composition.
Command Energy Services Ltd. non-magnetic drill collars
are an integral heavy duty
joint that are constructed from a solid bar of austenitic stainless steel. Our non-magnetic drill collars are supplied with an "as rolled" surface finish condition. All non-magnetic collars are hot cold worked in order to provide them with the necessary mechanical and magnetic properties. The bars are then trepanned, hot spot inspected and machined. An internal bore treatment is performed on the full length in order to achieve the proper compressive status of the internal diameter. This provides the collar with optimal resistance to stress corrosion cracking. All of our drill collars are manufactured in accordance with API spec 7, Q1 and recommended practice 7G, as applicable.
Here at Command Laiwu Hengye Heavy Steel Forging CO., Ltd. we know not every project is the same, therefore requiring a variety of collars. All of our drill collars can be customized to suit your specific requirements by adding some of the features listed below.
Contact Name: Mr. Jacky Kon
Company Name: LinSteel Group Co., Ltd.
Street Address: Linsteel New District,
Linfen City, Shansxi Province, 286000, China
Member name: paotian
Member Since: 11 October 2009
Total Leads: 1784 paotian Import Export Business Leads
Business focus: Galvanized Steel Coil, Pre-painted Steel Coil, Cold Rolled Steel Coil, Gi Coil, Hot Dipped Galvanized Steel Coil, Color Coated Steel Coil
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Product Category: Drill pipe