Our company combines international advanced technology, constantly exploring in practice, and has always been in a leading position in Seamless Cold Drawn Tube, Internal Chrome Plated Honed Tube, Tilt Welding Positioners industry. Our company has formed a complete quality supervision system, fully achieving the quality management commitment of 'zero defect of products'. Our company would be guided by the idea of 'Standing in Domestic Markets, Walking into International Markets'. The products to assure years of trouble-free service has attracted a great deal customers.
Seamless Cold Drawn Pipe Introduction
Cold drawn steel pipe is produced according to seamless cold drawn tubes for precision application standard GB/T3639-2009 , EN10305 or DIN2391 standard. Material SAE1020, 20#, ST45, CK45, ST52, E355 tubes and so on for you to choose. ID and OD tolerance could be decided by customer. IF you are looking for seamless cold drawn pipe for hydraulic cylinder pipes or pneumatic cylinder tubes, please contact us without any hesitation.
Seamless Cold Drawn Pipe Technical Parameters and Details
Application: hydraulic cylinder, pneumatic cylinder, oil cylinder, telescopic cylinder.
Original: Jiangsu, China
Certification: ISO9001.
Material: SAE1020, 20#, ST45, CK45, ST52, E355
Payment term: TT, LC
Delivery date: usually 20 to 40 days.
Packing: packed in bundle, with caps on both ends.
Market: Middle East/ Africa/Asia/South America/Europe/North America
MOQ: Depends on exact size and material.
Size and Tolerance:
|
Working method |
Cylinder ID （mm） |
Length （m） |
Straightness （mm/m） |
Tolerance on ID |
Tolerance on WT |
Roughness （μm） |
|
Cold drawn |
40-320 |
≤12M |
0.2-0.5 |
/ |
±5% |
0.8-1.6 |
|
Cold rolling |
30-100 |
≥12M |
0.2-0.5 |
/ |
±5% |
0.8-1.2 |
|
cold drawn- honed |
40-500 |
8M |
0.2-0.3 |
H8-H9 |
±5% |
0.2-0.8 |
|
Cold drawn-skived |
40-400 |
7M |
0.2-0.3 |
H8-H9 |
±5% |
≤0.4 |
|
Deep hole boring- honed |
320-400 |
8M |
0.2-0.3 |
H7-H9 |
±8% |
≤0.8 |
|
Deep hole boring- skived |
320-400 |
7M |
0.2-0.3 |
H8-H9 |
±8% |
≤0.4 |
Size list: (if you need other sizes, please let us know)
Production process
Raw material – annealing for material of 45#, 27SiMn, 25Mn – Acid cleaning – parkerizing & Saponifying – cold drawn – leveling – saw off bad section – stress relieving – leveling –inspection – oiled plated - packing
Quality control
1. We only buy raw material from famous tube factory, and Checking raw material quality before production.
2. We check the tube ID tolerance, OD tolerance and surface after cold drawn one by one.
We hope that we will develop together with you in order to jointly improve the manufacturing JIS G3445 Cold Drawn Seamless Steel Pipe for Automobile Sleeve and innovative technology level! Based on our guiding principle of quality is the key to development, we continually strive to exceed our customers' expectations. Our aim is to satisfy our customers with excellent products and considerate service, and create a better tomorrow for the industry.
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