Our company will keep the aim of seeking progress with science and technology and develop better and better Hydraulic Cold Drawn Pipe, Honed Tubes, Tilt Welding Positioners to meet the needs of customers. Our company regards 'reasonable prices, efficient production time and good after-sales service' as our tenet. Our company is committed to opening up the domestic and foreign markets by providing high-quality products with design. Under the guidance of professional and responsible thinking, we provide different users with comprehensive solutions that suit their own needs, and provide comprehensive after-sales services. It's our purpose to provide better service.
Ck45 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.
Ck45 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 |

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 are committed to provide DIN 17200 Ck45 Cold Drawn Seamless Steel Pipe that is reliable and simple to use relying on our scientific and process management, as well as continuous innovation and improvement. We are committed to the penetration and integration of traditional industries and new industries. We constantly strive to improve the production process, do our best to solve problems for customers, help them win the market, and provide customers with stable quality, high-performance products and satisfactory services.
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