OEM Supply Anaerobic Annealed Steel Tube Carbon Pipe
Our well-equipped facilities and superb good quality control throughout all stages of manufacturing enables us to guarantee total buyer gratification for OEM Supply Anaerobic Annealed Steel Tube Carbon Pipe, We welcome shoppers everywhere in the word to call us for long run small business associations. Our solutions are the top. Once Selected, Excellent Forever!
Our well-equipped facilities and superb good quality control throughout all stages of manufacturing enables us to guarantee total buyer gratification for China Precision and Seamless Steel Pipe, We insist on “Quality First, Reputation First and Customer First”. We’ve been committed to providing high-quality items and good after-sales services. Up to now, our goods have been exported to more than 60 countries and areas around the world, such as America, Australia and Europe. We enjoy a high reputation at home and abroad. Always persisting in the principle of “Credit, Customer and Quality”, we expect cooperation with people in all walks of life for mutual benefits.
Brief Introduction
Anaerobic annealed tube for bending and flaring is a delivery condition type under DIN 2391/EN10305 and SAE J524. Anaerobic annealed steel pipes: cold rolled or cold drawn precision steel pipes are put into nitrogen or atmosphere shielding gas, and normalized or annealed at different temperatures according to different materials of precision steel pipes.
Parameters:
| Grade | ST35/E235 ST37.4 ST45/E255 ST52/E355 |
| Standard | DIN2391 DIN1630 EN10305 DIN2445 JIS G3445 SAE J524 |
| Delivery Conditon | NBK(+N) BK(+C) GBK(+A) BKW(+LC) BKS(+SR) |
| Length | 6m or as Customers’request |
| Tolerance | Outer Diameter: According to Standard |
| Thickness: According to Standard | |
| Finish | Galvanized surface (Sliver/Yellow/Colorful) |
| Zinc coating of 8-12um | |
| Application | Hydraulic System;Car/bus;construction vehicle |
| Delivery time | A.7 days if this goods is stock goods. |
| B.20 days if this goods will be produced after order |
Delivery Condition
| Designation | Symbol | Description |
| Cold finished (hard) | BK(+C) | Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation |
| Cold finished (Soft) | BKW (+LC) |
The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding) |
| Cold finished and stress-relieved | BKS(+SR) | Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
| Annealed | GBK(+A) | The last Cold forming process is followed by annealing in a controlled atmosphere. |
| Normalized | NBK(+N) | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
Certificates: According to EN 10204 3.1
Inspection Items:
Tensile stength, Yield stength, Elongation, Flattenging, Flaring;
Chemical analysis
Eddy Current Test 100%, Size and surface checking 100%
Other test item can be arranged by A Third Party as per request.
