| Categories | Hollow Steel Tube |
|---|---|
| Brand Name: | Hongbao |
| Model Number: | HBHST-1 |
| Certification: | TS16949,DNV,PED,ISO,TUV,LR |
| Place of Origin: | Jiangsu, China |
| MOQ: | 1 ton |
| Price: | Negotiable |
| Supply Ability: | 30000MT per year |
| Delivery Time: | within 50 days |
| Packaging Details: | Original packaging according to the customers Export standard package in bundled or as required. |
| Brand:: | Hongbao |
| Material:: | ST37.4,ST52.4,E235,E355,26MnB5,34MnB5 |
| OD:: | 6-120mm |
| Thickness:: | 0.5-15mm |
| Shape:: | Round |
| Type:: | Welded or Seamless |
| Company Info. |
| Jiangsu Hongbao Group Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
Large Diameter Hollow Steel Tube ERW Steel Pipe Welded Precision E355 E235 Steel Pipe
The galvanized steel pipe is immersed in the zinc protective layer to protect the pipe from corrosion in the humid environment, so as to prolong the service life. It is most commonly used in plumbing and other water supply applications. Galvanized pipe is also a low-cost substitute for steel, which can achieve rust protection for up to 30 years, and maintain comparable strength and durable surface coating.
1. Technology of Hot Rolled, Cold Rolled or Cold drawn.
2. Hollow cross-section with lighter weight and higher pressure.
3. High hardness, strength, wear resistance and anti-corrosion.
4. The SMLS can becut, threaded or grooved. And the coating method
includes black / red lacquer, varnish painting, hot dip
galvanization, etc.
Specification:
| End Shape | Beveled end, plain end, vanished, or adding plastic caps to protect the two ends as per customer's requirements | |
Surface Treatment | Oiled, Galvanized, Phosphate etc | |
| Technique | Cold drawn & cold rolled | |
| Application | 1. Automotive and mechanical pipes | |
| 2. Petroleum cracking pipes | ||
| 3. High Pressure Boiler Pipe | ||
| 4. Low and middle pressure fluid transportation pipeline | ||
| 5. Chemical fertilizer equipment pipes | ||
| 6. Heat exchanger pipes | ||
Delivery Conditions | 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 transformation point in a controlled atmosphere. | |
| Package | 1. Bundle Packing. | |
| 2. Plain end or vanished as per customer's request. | ||
| 3. Wrapped in waterproof paper. | ||
| 4. Sackcloth with several steel strips. | ||
| 5. Pack in heavy tri-wall boxes. | ||
Delivery condition of seamless cold drawn mechanical tubing
BK (+C) Cold finished/hard (cold finished as drawn).
BKW (+LC) Cold finished/soft
BKS (+SR) Cold finished/stress relieve annealed.
GBK (+A) Annealed.
NBK (+N) Normalized.
Application
Fuel injection lines/nozzles for diesel or gasoline engine;
Compressed natured gas CNG tube
Drive transmission: steering column elements
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