High Precision Steel Pipe for Gas spring Cylinder
Type:Seamless and Welded Steel Tube
Roughness 0.1-0.8ra
Material E195-E235,Q195-Q235,#10,#20,#45,SAE1010,SAE1020
Surface:Black/bright
Standard:DIN, GB, JIS, DIN 17175, DIN 2391, GB 5310-1995, GB/T 13793-1992, GB/T 3094-2000, GB/T 8163-1999, JIS G3101
Size :OD 3mm-140mm Thickness 0.5-20mm
Processing :Cold rolled /cold drawn
1. BK (+C) No heat treatment after last cold forming process.
2. BKW (+LC) After last heat treatment there is a light finishing pass (cold drawing)
3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed.
4. GBK (+A) After the final cold forming process the tubes are annealed in a controlled atmosphere.
5. NBK (+N) After the final cold forming process the tubes are annealed above the upper
Woven bag / wooden or crate carton/ Bundle Packing/ Plain end or vanished as per customer's request.
Usage: Gas Spring Cylinder
Seamless Tubes are important materials in making foundations in both offshore as well as onshore projects.
Seamless Tubes are easy to weld to form a desired structure. These Seamless Tubes are mainly composed of austenite and ferrite. The materials are very easy to get and have an excellent durable nature. The main applications of these kinds of Seamless Tubes are in the heat exchanger tubes that require a resistance to high temperature. These Seamless Tubes are also used in paper making machines and in the seawater handling systems.
The super duplex tubes are different in their material composition. This particular type is rich in both molybdenum and chromium. This gives a higher resistance against the corrosion. The alloying costs are less like the other duplex tubes. The fabrication and the management cost of these tubes are remarkably lesser than other tubes. These tubes protect the construction from the environmental erosion to give the structure an enhanced solidity.
Cold Drawn Seamless Steel Pipe as implied is made by cold drawing a larger mother seamless pipe, which is generally manufactured through an HFS process. In the Cold Drawn Seamless process, the mother pipe is pulled through a die & plugin cold without any heating. Because of the tool on the outside and inside the surface and tolerances are better in Cold Drawn Seamless. While this is an additional process over HFS, it is necessary to get smaller size pipes that otherwise cannot be manufactured in HFS. Some applications which require close tolerances and smooth surfaces also specify the requirements to be necessarily Cold Drawn Seamless. Cold Drawn Seamless pipes & tubes are extensively used in Heat-Exchanger, Bearing & Automotive sectors. Cold drawn seamless steel pipe is used for the mechanical structure, hydraulic equipment, which has precision size, good surface finish. It can greatly reduce mechanical processing hours and improve material utilization, and improve the quality of products. High-quality cold-drawn seamless steel pipes are mainly using the 10# 20#. In addition, to ensure chemical composition and mechanical properties, it will check by the Hydrostatic test, crimping, flared, and Squashed test. Cold Drawn Seamless (CDS) as implied is made by cold drawing a larger mother seamless pipe, which is generally manufactured through an HFS process. In the CDS process, the mother pipe is pulled through a die & plugin cold without any heating. Because of the tool on the outside and inside the surface and tolerances are better in CDS. While this is an additional process over HFS, it is necessary to get smaller size pipes that otherwise cannot be manufactured in HFS. Some applications which require close tolerances and smooth surfaces also specify the requirements to be necessarily CDS. CDS pipes & tubes are extensively used in Heat-Exchanger, Bearing & Automotive sectors.
