CDS Seamless Pipe St52 Ck45 DIN2391 Steel Tube

cold drawn precision carbon and alloy steel  seamless steel tube pipe

High Precision Seamless Steel Tube for Automotive Industry and Hydraulic Application
cds seamless pipe st52 ck45 din2391 steel tube

APPLICATIONS

1. Automotive fields

 A. Fuel injection lines/nozzles

 B. CNG (Compressed Nature Gas) tube-- Burst pressure: 1307Bar, Working Pressure: around 350bar

C. Drive transmission: Steering column elements

 D. Gear shafts, hand brake, front axles, airbag inflators, stabilizers, seat fasteners, front-wheel drive shafts
 
E.  Shock absorber and others 

2. Hydraulic Fields

A. Hydraulic circuits (HPL), pneumatic lines, and hydraulic suspension system

B. Hydraulic cylinders (HPZ)

3. Other Fields

Hydraulic machines, Hydraulic cylinder, heat exchanger, high precision machines, oil lines, and others in need


ADDITIONAL SURFACE TREATMENT AFTER TUBE MAKING
 

1. Galvanizing 

 A. Silver galvanized

 B. Yellow galvanized

 C. Olive green coated

 Layer thickness: 8-20um, Salty Spray Test: 48-150 hours

 2.Black phosphate

 

 Many other steel grades and customized - modified steel grades are available on request 

Delivery conditions:  Precision tubes are delivered in following conditions (first symbol lists previous designation, the new one according to EN is in brackets):
BK (+C) Cold finished/hard (cold finished as drawn).
No heat treatment after last cold forming process.
BKW (+LC) Cold finished/soft (lightly cold worked).
After last heat treatment there is a light finishing pass (cold drawing).
BKS (+SR) Cold finished/stress relieve annealed.
After the final cold forming process the tubes are stress relieve annealed.
GBK (+A) Annealed.
After the final cold forming process the tubes are annealed in a controlled atmosphere.
NBK (+N) Normalized.
After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere.

 

Tests: all tubes are checked according to the relevant production standard;supplementary/optional tests are available on request; chemical mechanical and   technological tests are made according to relevant standard

 

Certificates: according to EN 10204 3.1 

 

Packed in bundles or boxes

Chewit international Located in zhangjiagang city which is along The Yangtze Golden Channel the junction of River and Coast Economic Belt. It owns an excellent geographic position, as it is close to Nanjing city in the north, adjacent to Suzhou and Wuxi cities in the south, next to Shanghai international city in the east. Zhangjiagang international port and State highway endow us a convenient water and land transportation which links us to the outside world both home and aboard. Chewit International is one group company with two manufactures one is producing steel forgings for Marine, Power, Boiler, Ocean, Oil, Petrochemical, Mechanical and Hydraulic fields and the other is producing precision steel tubes for automotive industry and hydraulic system and also one semi-independent company specially for import and export business. We have a total area of 150000 square meters with the employees over 200 people. All the products well produced by our mills need to be double inspected by chewit professional quality controller and then we will offer our customer the vivid report for the tested items. Only those products which are inspected well can be allowed to delivery to our customers. By the means of strict inspection, we wined a lot of customer for long term business both home and abroad. We have customers like Danieli, Cedervall,Wartsila,Sannat mansur, SeaLink, Tata Group,  Continental, Iran Khodro and also other well reputated ones. We adhere to our company tenet Customer First, Quality formost and always try our best to serve our customer with our full heart.