Through continuous innovation, we have formed an advanced technology system in the development of seamless stator tube, Seamless Hydraulic Srb Pipe, 4140 seamless tube. In addition to supplying domestic merchants, the products are also sold to international markets. We have won the trust of many customers, established a solid cooperative relationship, and gained a good reputation in the industry.
Precision Seamless Honed Tube 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.
Seamless Honed Tube 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 |

Honed Tubes characteristics
1. The inside tolerance could up to H8.
2. Honing Inside roughness could reach to Ra 0.4um. Skiving inside could reach to Ra 0.2 um.
3. ID size from 50 to 280mm, OD size from 60 to 370mm, totally has more than 200 sizes.
4. Length could be fixed length of random length.
5. Inside chrome plated is for optional.
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.

FAQ
1. Q:Are you a manufacturer, trading company or a third party?
A:We are a manufacturer, and we have builded up our company since 2001.
2. Q:Where is your factory located?
A:Our factory address is : Hengtong road, Yangshan Town, Huishan District, Wuxi City, Jiangsu Province, China.
3. Q:How can i get to your factory?
A:Our factory is near shanghai Airport, and then you could take fast train from Shanghai to Wuxi Station.
4. 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.
5. 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.
6. Q: Do you have the products in stock?
A:We have standard sizes in stock.
In order to meet the needs of the international market, we have the courage to innovate and develop, and successfully launched a new series of the DIN2391 St52 Precision Cold Drawn Honed Seamless Steel Tube with unique advantages, which are very popular in the international market. We are willing to work together with old and new friends from all walks of life to create a better tomorrow with a sincere attitude of cooperation. Let’s start our new business enterprise with new wave.
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