We are committed to creating better Uniform Thickness 4140 Tube, Adjustable Rotators, cold drawn drilling tube and higher-quality services for our customers, adhering to the simple R&D spirit, insisting on market demand-oriented, and innovative ideas as the driving force. Our company constantly update all kinds of production equipment, constantly expand the production scale, and we have been working hard in order to win more orders. We uphold the core values of 'love, dedication, gratitude, and integrity'.
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.
Administration selling advantage, Credit rating attracting buyers for Cold Drawn Seamless Stainless Steel Pipe (TP304). You can always find the products you need in our company! In order to focus more on sales and production and implement independent system management of production and sales, our company employs domestic and foreign professionals with high salary and establishes a strong research and development team.
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