Looking forward to the future, we have a long way to go. We insist on upgrading and perfecting the corporate value chain, and constantly increase the quality of Welding Turning Roll, Head Tail Positioner, Self Aligned Pipe Welding Roller. With persistent belief and unrepentant pursuit, we have created a solid foundation for the company's career development. We adopt strict internal processes and product traceability for quality control and quality assurance. In many factors of product quality, talent is the decisive factor. Building talent camp is an important part of our company's development strategy.
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 company sticks into the basic principle of 'Quality is definitely the life of the business, and status may be the soul of it' for Cold Drawn Precision Seamless Stainless Steel Pipe. Our aim is 'blazing new ground, Passing Value', in the future, we sincerely invite you to grow up with us and make a bright future together! Since introduced the part overseas vanguard technology and the craft and formed the powerful technical support system, it has poured into the vigor for our development.
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