drill collars -
drill collars For Sale, Most Competitive Price, Fast Delivery, Custom Service, Wholesale drill collars, Made in China, High Quality Products!, China drill collars, spiral drill collars Supplier, Manufacturer.
drill collars are manufactured from AISI 4145h or 36crnimo4 modified steel, and are supplied in the" as rolled" surface finish condition. alternative surface finishes can be provided.
trepanning and heat treatment :
drill collars are trepanned and drifted to API spec 7. full-length heat-treatment processes ensure that mechanical properties meet or exceed API spec 7 requirements. a hardness range of 285-341, Brinell hardness and Charpy #129;gv#129;h notch minimum impact strength of 40 ft-lb at 70of are guaranteed one inch below the surface.
JiaoZuo Mengxin Special Steel Co., LTD
Address: Zhaohe Town, MengZhou City HeNan Province, China, JiaoZuo, Henan, China, 454750
Tel: 86-0391-6936009
MENGXIN SPECIAL STEEL CO., LTD is a special steel manufacturer which has the right to operate import and export business. We are specialized in steel melting, forging, machining, heat-treating. The main products are forged round bar, square bars, forged rolls, pipe mould, etc. Our products can meet the standards of DIN, ASTM, AISI, JIS, API. We can also produce the steel according to your requirements. Passed the ISO9001-2000 international quality system certification.
We have great technology, advanced equipment and complete inspection means. The trustworthy service and the outstanding prestige of our company provide a solid foundation for all our customers from both home and abroad.
Our Company adheres to the tenet of 'Quality first credit first and the customers first', so as to enhance the quality mind and keep satisfying the needs of the customers. We always enhance our competition consciousness, try to raise the sales of our products, and keep improving our quality system, so as to win good comments from customers home and abroad.
Our company also strives to open up a new chapter that "Mengxin Special Steel" is honest and trustworthy and we will have a win-win situation. And we hold on the philosophy of science and technology as the pilot and customers as God.
And also we make special forgings according to customer's requirements. Our products have a good market in America, Japan, England, German, France, Singapore, Malaysia, all our products are well received by our customers.
Welcome to establish cooperative relationship with our company!
