We have won the recognition of our customers by virtue of the advantages of high quality and low price, timely delivery, and thoughtful after-sales service, and our Ck20 Steel Honed Tube, Adjustable Welding Rotator, Ck20 Honed Tube are exported to various countries and regions in the world. Now many OEM factories cooperated with us too. With the support of our highly experienced professionals, we manufacture and supply best quality products. For further inquiries, you should do not hesitate to contact us. We regard talents as the greatest wealth of the company and regard team building as the top priority of all work.
Seamless Cold Drawn Tube 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 Tubes 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.
Mechanical Properties:
Final Supply | Cold finished | Cold drawn and stress-relieved (BK+S or + SR) | Hardness HB | |||
Parameters | T.S | Elongation | T.S | Y.S | Elongation | |
20# (A106B, ST45, E255) | ≧550 | ≧8 | ≧520 | ≧375 | ≧12 | 175 |
45#(CK45) | ≧650 | ≧5 | / | / | / | 207 |
Q345B(ST52, E355) | ≧640 | ≧5 | ≧600 | ≧520 | ≧15 | 190 |
25Mn | ≧640 | ≧5 | ≧600 | ≧510 | ≧15 | 195 |
27SiMn | ≧840 | ≧5 | ≧800 | ≧720 | ≧10 | 230 |
Experience and markets
Our factory has more than 20years working experiences on researching and selling. Products are well sailed all over the world, got many compliments from customers.

Our Advantages
a. Extensive production experience: we are specialized in honed tubes, skived tubes, cold drawn pipe, and chrome bar with an experience of 20 years.
b. Complete production facilities: owning cold drawn machine, skived and roller burnished machine, honing machine, precision centerless grinding machine, straightening machine, fine polishing machine, precision lathe, milling and drilling machine, roller press and other advanced equipments. Our technicians will do regular scheduled maintenance on these machines to guarantee them work well.
c. High quality raw material: we mainly choose raw material from big steel factory, such as AN STEEL, TPCO, BAO STEEL, SHA STEEL, which are best and largest raw material manufacturer in China.
d. Strict Physical/Chemical testing procedures: meeting the requirements of the product design and process, providing reliable testing data.
e. Short Delivery time: Usually one container 20 days. We also stock some standard-sized tubes and bars.
f. Safe packing: anti-rust oil be spread on tubes and bars before shipping, plastic caps on tube ends to protect inside surface, each bar be protected with cardboard tube.
FAQ
1. Q:Where is your factory located?
A:Our factory address is : Hengtong road, Yangshan Town, Huishan District, Wuxi City, Jiangsu Province, China.
2. Q:If i will need to stay in your place for few days, is that possible to book the hotel for me?
A:It’s always my pleasure, hotel booking service is available.
3. Q: May i know which payment will be accepted by your company?
A:So far 30% deposit paid by T/T, balance before delivery. L/C at sight also ok.
4. Q:What kinds of physical and chemical testing you can provide?
A:The physical and chemical testing we provide include:
Øchemical composition testing, physical property testing:hardness test,Tensile performance testing
5. Q: Do you have the products in stock?
A: We have standard sizes in stock.
6. Q: Can I mix different models in one container?
A: Yes, of course, but one container we accept 10 sizes at most.
We always adhere to the service concept of 'innovate technology, serve customers, and reduce costs for customers', starting from customer needs. Looking forward to the future, we will more actively meet the challenges of the market and provide our customers with competitive ASTM A335 Cold Drawn Seamless Boiler Steel Tube solutions. We have found an excellent before-sale, sale, after-sale service to ensure the customers that could rest assured to make orders. Finest efforts will likely be produced to offer you the ideal service and goods.
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