ISO9001 round cold rolled seamless carbon hollow rods

This series products are made with high quality raw material. Advanced manufacture equipments and the exquisite craft, technology, characteristic of high precise size, good quality surface, stable performace, especially for the reliable durable performance under high temperature. It is widely applied in eat Exchanger and Condenser Tubes, Gas Spring and Lifter tubes, Shock Absorber Tubes and Pipes,  Automobile Motocycle tubes and pipes, Hydraulic Pipe.High pressure and super critical pressure steam boiler, the pipe line so on.
Heat Treatments:Stress Relieved, Annealed, Full Annealed, Normalized

Technique(Industrial craft): Cold Drawn and Cold Rolled
Application: Heat Exchanger and Condenser Tubes, Gas Spring and Lifter tubes, Shock Absorber Tubes and Pipes, Automobile Motocycle tubes and pipes, Hydraulic Pipe.
Typical Applications:Chains, Automotive, Aircraft, Military, Boilers & Heat Exchangers, Oil Processing and Delivery, Furniture, Construction, Machinery Manufacturing, Air Pollution Control Equipment, Railway Coaches, Electrical and more

Main Features: high accuracy, excellent brightness, high cleanness inside wall.
Section Shap：Round.
Outer Diameter: 6-100mm
Wall Thickness:0.6-8mm
Standard: DIN2391, DIN17175, ASTMA106, ASTM A213, ASTM A53, ASTM A312, ASTM A179, SAE 4130. GB/T 8163,GB/T 3087,GB/T 5310 A519
Grade:10#,20#,35#,45#,St35=St37=E235=20#,CK45=45#,St52=St52.3=E355=16Mn. 30CrMo, 25Mn,
 

Technique(Industrial craft):Cold Drawn and Cold Rolled
Application:Heat Exchanger and Condenser Tubes, Gas Spring and Lifter tubes, Shock Absorber Tubes and Pipes, Automobile Motocycle tubes and pipes, Hydraulic Pipe.
 
Packing Details:
1.Internal wrapped with plastic film. External wrapped with woven bags.
 2. wooden boxes to pack.
 3. Iron stand.
  in high precision cold-drawn/cold rolled  seamless steel tube(polished)

Synopsis of process routing:quality carbon steel-coled drawn-heat treatment without oxidization (NBK status)-nondestructive testing.In the wall honing and inside flushing under the high pressure-.Antirust oiling outside surface-plastic capping on both ends.

Main features:high precision,excellent brightness,no oxidization on the outer and inner walls after heat treatment,high cleanness of inside wall.The steel tube is able to withstand high pressure.No deformation after cold bending,no crack after flaring and flattening.The complicated geometrical forming and machining can be realized.Color of tube:gray with white.

Main application:to be used in hydraulic system,automobile and in the occasion where the high precision,brightness,cleaness and mechanical properties of the tube are required.
 

Changzhou Raymond steel tube Co.,Ltd is located in Wujin District,Changzhou City,Jiangsu Province,China.Where is Yangtze River Delta Ecnomic Development Zone and nearby Shanghai City(one hour by fast train).The convenient transportation,developed commercial law enable it to be the first choice place for foreign friends all over the world to find business opportunities in China.
 
    Our company was founded in 2002,with covering an area of more than 20000 Square meters,and more than 100 employees.Cold drawn and cold rolled precision seamless steel pipes and tubes are our main products,for which we have more than 10 years experience.Meanwhile we have sophisticated (specialized) machining equipment,strong technical strength and advanced technology and so on.Our quality is ensured and we were certified to ISO 9001-2008 Certificate and got "Jiangsu quality credit AAA grade brand enterprise" title.