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Contact us:

Company name: TianJin Shiruida Machinery Import & Export Co., Ltd

Main products: Petroleum machinery and Petroleum mechanical fittings

Business nature: Joint stock company

Tel: 0086.22.24716021  24716013   24716017 

Fax: 0086.22.24716023

Address: East15#,Chengfa Industrial zone,Xuelian South Road,Hedong District,Tianjin,China

Zip code:300185

Website: http://www.shiruida.cn       http://www.shiruida.com         

E-mailinfo@shiruida.com     sales@shiruida.com      

admin@shiruida.com

 

 

   

 

Link:
http://www.adcbuae.com
               Drill pipe sub

Tool joints


Tool joints of our company are turned, bored and faced prior to heat treatment by the quench and temper process to make a uniform microstructure, high ductility, and other mechanical properties in accordance with API specifications. The heat treatment is done under controlled atmosphere for consistent quality. The tensile and impact properties are verified by destructive testing, to make sure that the drill pipe sub meet the API requirements. The drill pipe sub shall undergo the fluorescent magnetic-particle detection and ultrasonic flaw detection, both transverse and longitudinal, to ensure the absence of defects.


All the threads are precisely machined by CNC lathes. All connections are 100% inspected for thread parameters and phosphatized or copper plating for anti-galling & corrosion resisting.

Standard size for Tool joints

Standard

Yield strength

Tensible strength

Elongation

Brinell hardness

Impact test

Mpa

Mpa

Mpa

HB

Akv(J)

API SPEC 7

  ≥827.4

   ≥965.3

≥13

≥285

//

SY/T 5290-2000

≥827

≥965

≥13

285-341

≥54

HJ-JT

828-1050

1365-1150

≥14

303-341

longitudinal

transversal

≥87

≥90

 

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