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| 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 |
ASTM GB DIN Standard Seamless Steel Tube Black Oiled Round Carbon Steel Tube
Types | Application |
Structure Purposes | General structure and mechanical |
Liquid Services | Petroleum, gas and other fluids conveying |
Low and Medium Pressure Boiler Tube | Steam and boiler manufacturing |
Hydraulic Pillar Service | Hydraulic support |
Auto Semi-shaft Casing | Auto sem-shaft casing |
Line Pipe | Oil and gas conveying |
Tubing and Casing | Oil and gas conveying |
Drill Pipes | Well drilling |
Geological Drilling Pipe | Geological drilling |
Furnace tubes, heat exchangers tubes | Furnace tubes, heat exchangers |
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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