Every member from our high efficiency sales team values customers' needs and business communication for 30crmo Cold Drawn Seamless Tube, St52 Honed Steel Pipe, seamless stator tube. We will work hand in hand with new and old customers based on the principle of honest service to create brilliance in the face of opportunities and challenges and make new contributions to the construction and development of the industry under the environment of active global economy. With our Professional R&D team, we are able to provide customization services with the most professional quality and never stop meeting the highest standard of safety. We always keep in mind the corporate mission of making products more efficient, and determined to become the industry leader!
Honed Steel Pipe Introduction
Honed Steel Pipes 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.
Honed Steel 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 |
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.
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
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: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:What is your minimum order quantity, can you send me samples?
A: the Exact MOQ depends on your exact requirement. And sample is available.
4. Q:What is the delivery time?
A: Usually from 20 to 40 days.
5. Q: How is your price level?
A: Factory direct sale, we have whole production line ourselves.
We have strong manufacturing and scientific research capabilities, and occupy a leading position in the Inner Surface Polishing Honed Steel Tube/Pipe industry. Our company sticks to 'pursuit of perfection, giving back to the community' from first to last. We are looking forward to cooperating with regular and new customers. In-depth development of new products is our long-term goal.
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