In order to continue to strengthen our 16Mn Steel Honed Tube, Self Aligned Vessel Welding Rotator, S45C Chrome Plated Honed Tube and deliver more sophisticated features and performance, we are harnessing some of the latest technological improvements. At the same time, we sincerely look forward to providing satisfied service and high quality products for new and old customers at home and abroad. In terms of technology, we have a professional design and development team. As for service, we provide customers with enthusiastic and timely after-sales service. As a result, our product customer satisfaction has reached 100%, and the products produced are sold well in many countries and regions. We practice the strategy of quality and prosperity, not for the largest scale, but for the strongest strength.
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.
Our rewards are reduce selling prices, dynamic revenue team, specialized QC, sturdy factories, superior quality services for Carbon Cold Drawn/Hot Rolled Seamless Steel Pipe. Continuous product upgrading to meet customized customer requirements is the main challenge faced by each manufacturing company in the market to maintain competitiveness and achieve sustainability. After multiple generations of iterative upgrades, the performance of it has reached very stable with superior accuracy.
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