Export Departmentalana hanPhone: +86 - /+86 - 13653911877Fax: +86 - 0391 - 6763502Show more contact information
Jiannanzhuang Industrial Zone, Jiyuan City, Henan Province, ChinaJiyuan City, Henan ProvinceChina, 454650Web Page Link: http://www.toboc.com/jiyuantianhespecialsteelcoltd
Standard: API Spec7-1 API5D or SY/T6509Processing Type: ForgingMaterials: 4145h,4145h mod,as customers’requirementOD: 2 7/8"-6 5/8"Lenght: 9300mm/13500mmMOQ: 25mtDelivery time: 40 daysPort:Tianjin/Qingdao/ShanghaiPayment , : 30 Percent advance by T\T Balance pay before the shipment against shipping documents or irrevocable LC at sightInspection: Third party acceptPackaging & DeliveryPackaging Details : Square drill kelly offer the following package: Seaworthy, Steel shelf, Iron Pallet. all package will be packed in plastic bags for anti-rust in the long time transportation.Specifications1 , . made-in-China API 7-1 square drill kelly 2. forged square drill pipe 3. high quality with good service Introduction For The Square Drill KellyTianhes square drill kelly are made from AISI 4145H alloy bars that are quenched and tempered full length. A hardness range of 285 to 341 BHM and a minimum impact value of 54 Joules as per ASTM A 370 are maintained one inch bellow the surface at room temperature. To improve resistance to galling, all connections are phosphate-coated with an API thread compond. Each bar used to manufacture kellys has been examined with magnetic partice inspections and ultrsonic inspections.
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Jiyuan Tianhe Special Steel Co., Ltd