Video
Seamless precision steels tubes
| Product material | St35/St45/St52 |
| Product specification | |
| Product applied standard | DIN 2391 |
| Delivery status | |
| Finished products package | Steel belt hexagonal package/plastic film/woven bag/sling package |
Product Manufacturing Process
Tube blank
Inspection (spectral detection, surface inspection, and dimensional inspection)
Sawing
Perforation
Thermal inspection
Pickling
Grinding inspection
Lubrication
Cold drawing
Lubrication
Cold-drawing (the addition of cycled processes such as heat treatment, pickling and cold drawing should be subject to the specific specifications)
Cold drawing/hard BK or cold drawing/soft BKW or cold drawing and stress relieved BKS or annealing GBK or normalization NBK (selected according to customer’s needs)
Performance test (mechanical property, impact property, flattening, and flaring)
Straightening
Tube cutting
Non-destructive testing
Hydrostatic test
Product inspection
Immersion of anti-corrosive oil
Packaging
Warehousing
Product Manufacturing Equipment
Shearing machine/sawing machine, walking beam furnace, perforator, high-precision cold-drawing machine, heat-treated furnace, and straightening machine
Product Testing Equipment
Outside micrometer, tube micrometer, dial bore gage, vernier caliper, chemical composition detector, spectral detector, tensile testing machine, Rockwell hardness tester, impact testing machine, eddy current flaw detector, ultrasonic flaw detector, and hydrostatic testing machine
Product Applications
Chemical equipment, ships, pipelines, automotive parts, and mechanical design applications
Advantage
Precision seamless tube is a kind of high precision steel tube material after cold-drawn or hot-rolled treatment. Since precision steel tube has no oxidation layer on the inner and outer walls, bears high pressure without leakage, high precision, high finish, no deformation in cold bending, flaring, flattening without cracks and other points, it is mainly used to produce products of pneumatic or hydraulic components, such as cylinders or oil cylinders, which can be seamless tubes or welded tubes. Compared with solid steel such as round steel, it is lighter in weight when the bending and torsional strength is the same, and is an economic cross-sectional steel, widely used in the manufacture of structural parts and mechanical parts.
Features
1. High precision, saving the loss of material when machining users.
2. Many specifications, wide range of applications.
3. High precision, good surface quality and straightness of cold rolled finished products.
4. The inner diameter of steel pipe can be made into hexagonal shape.
5. Steel pipe performance is more superior, the metal is more dense.
Package of carbon steel seamless pipe
Plastic caps plugged at the two sides of pipe ends
Should be avoided by the steel strapping and transport damage
Bundled sians should be uniform and consistent
The same bundle(batch) of steel pipe should be came from the same furnace
The steel pipe has the same furnace number,the same steel gradethe same specification
