With ambition, courage and hard work, we are committed to realizing the dream of 'building a leading brand in the St52 Steel Honed Tube, Ck20 Rolled Tube, Cold Drawn Steel Tube industry'. With the enterprise concept of pursuing dream and talking to the world, we have become the industry leader. We will continue to learn lessons from the past development process and move forward hand in hand on the road of building company culture, creating a superior environment for our employees The company emphasizes the education and training of employees, and our employees have high technical quality and quality awareness.
Ck20 Honing Pipe Introduction
Honed Tubes are presicion tubes with smooth inside, they also could be skived and burnished pipe. Tubes or pipes inside tolerance could be H10, H9 or H8. Outside tolerance, wall thickness tolerance are 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.
Ck20 Honing Pipes 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, oiled inside, 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 –honing or skiving – 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.
3. We inspect the honed tube inside tolerance and surface again one by one after honing or skiving.
Packaging & Delivery
Packaging Details | in bundle, with plastic caps, anti-rusted oiled, with woven bags |
Delivery Time | Shipped in 20 days after payment |

We will continue to carry forward the entrepreneurial spirit of "responsibility and practice", and continue to provide St52 E355 Bks Skiving or Burnishing/Honing Seamless Steel Tubes/Pipes for Hydraulic ... that are trusted by society, recognized by the market, and assured by customers. We're generally ready to build lengthy and steady co-operation relations with any possible shoppers within the associated fields. Our professionals spend quality time in understanding the exact requirements of the customers and come up with products that fulfill these requirements in the most cost-effective manner possible.
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