high reputation steel pipe stress relieved after cold finished
USD $600 - $1,250 /Metric Ton
Min.Order:5 Metric Tons
Yantai Xinpeng Steel Pipe Co., Ltd.
Main Product
1. Hydraulic Cylinder Tube------Main products of Xinpeng
Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and 1020. We can work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.
2.SRB tube ----- used inElevatorbuffer and Hydraulic Cylinder .This kind tube have a better roughness inner the tube, ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Range: ID 50-250mm and Length can work at most 6M.
3. Cold finished tube---- Widely Used. Processing range 30-300mm, biggest length is 11M.
The benifits of our products:
Xinpeng Have passed ISo9001 verified from 2008; each tube of ours is strictly in quality control that can assure the product quality of Xinpeng.
Technique and tolerance
Working Method | Range | Size of ID | Tolerance | |||||
ID tolerance | WT(mm) | Ovality | Curvature | |||||
H8 | H9 | H10 | ||||||
Cold Drawn | 25-250 | >30-50 | +0.0390 | +0.0620 | +0.1000 | ±5% to 7.5% ID>210mm ±10% | ≤0.10-0.20 | 0.3 |
Cold rolling | 25-150 | >50-80 | +0.0460 | +0.0740 | +0.1200 | |||
Cold drawn-hone | 40-250 | >80-120 | +0.0540 | +0.0870 | +0.1400 | |||
Cold drawn-SRB | 50-250 | >120-180 | +0.0630 | +0.1000 | +0.160 | |||
Cold drawn-polish | 40-250 | >180-250 | +0.0720 | +0.1150 | +0.1850 | |||
Cold drawn-polish-SRB | 50-250 | Other size and technique parameter upon request |
Packaging&Shipping
1. bundle packing
2. marking as per customer's requests
3. paint on the pipe as per customer request
4. pipe caps as customer request
Delivery condition
1. NBK(+N)
after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium
2. GBK(+A)
after cold forming, annealing in non oxidizing medium protective gas
3. BK(+C)
the final heat treatment after cold forming, therefore small steel pipe plastically, the plastically degree does not guarantee
4. BKW(+LC)
after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring)
5. BKS(+SR)
have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing
Process
Equipped with JLB250T hydraulic cold drawn set, LD120 cold rolling set, annealing furnace, strong honed machine, polishing machine, lathe, saws CNC skived and roller burnished machine, kinds of testing machine.
FAQ
Q: what about your standard delivery date?
A: 30 days after receiving deposit
Q: How about your capacity?
A: For steel pipes, 500 tons per month, 6000 tons per year.
Q: Do you have the target price?
A: Generally speaking, we have the target price when we buy something ,which is benefit for both buyer and supplier. At the same time, our target price will be reflected by the market.
If you are interested in our products, pls don’t hesitate to contact us, and we’ll do our best for you !