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Black Anneal Tubes

Home / Products / Black Annealed Pipe / Black Anneal Tubes
Your Professional Black Anneal Tubes Manufacturer

 

TIANJIN BO YI DA IMPORT AND EXPORT CO.,LTD is a modern production and exporting enterprise with professional experiences in international business.Our Product: galvanized steel, galvalume steel, PPGI, PPGL, hot rolled steel, cold rolled steel, stainless, wire rod, H-beam, steel pipe etc. The company is committed to providing customers with high-quality and reasonable price steel products and strives to create value for customers as its own responsibility.

 

 
 
Why Choose Us
 

High Quality
We take pride in the craftsmanship of our products and ensure that each one meets our strict standards for quality.

 

Production Market
Our products are exported to all over the world, including Africa (West Africa, East Africa, South Africa), Southeast Asian countries (Philippines, Vietnam, Singapore, Indonesia), and South American countries, etc. Our products are widely used in construction projects.

 

Global Shipping
Our company has a strong and professional logistics and distribution system, ready to meet our customers' various needs at any time.

 

End-to-end Services
☆Pre-Sales service
* Inquiry and consulting support.
* Sample testing support
* View our Factory.
☆After-Sales Service
*Videos or photos will send to customers
*100% Granutee quanlity and quantity.
*Vessel tracking.

 

Products Specifications

 

Thickness

0.2-19mm or Customize

Length

6m, 6.4m, 12m or Customize

Grade

Q195-Q345, Q235, Q195, A53-A369, A53

Standard

ASTM, BS, JIS, ASTM A53-2007, BS 1387, JIS G3444.

Alloy or Not

Alloy

Applications

Construction, decoration, industry, etc.

Surface

Annealing

Type

Black Annealed Tube

 

Advantages of Black Anneal Tubes

 
Enhanced Flexibility and Ductility

Annealing softens the steel, making it more pliable and easier to bend or shape without cracking or breaking. This is particularly useful in applications where the tube needs to be formed or maneuvered during installation or use.

Improved Handling

The increased flexibility and softness of black annealed tubes make them easier to cut, shape, and handle during fabrication and installation.

Corrosion Resistance

While not completely rust-proof, the oxide layer formed during annealing provides a degree of protection against corrosion, especially when compared to untreated steel. This layer can be further enhanced by applying a protective coating, like oil or wax.

Smooth Surface Finish

The annealing process results in a smoother surface finish on the tubes, which can be beneficial for various applications, especially those where aesthetics or smooth flow are important.

Versatility

The combination of flexibility, strength, and corrosion resistance makes black annealed tubes suitable for a wide range of applications, from construction and manufacturing to baling and tying.

 

Application of Black Anneal Tubes

Architectural field

Used for supports, frames, coblack pipe lumns and beams in building structures, etc., to provide the necessary strength and stability. It can also be used for architectural decoration, such as home decorations and display stands.

 

Machinery manufacturing industry

Used to make parts, racks, machine bases and conveying systems, etc., because of its good machinability, it is easy to cut, weld and other processing operations.

 

Furniture manufacturing

Used to make furniture such as tables, chairs, racks and shelves, providing stability and structural support.

Pipeline and pipeline systems

As a component of pipelines and pipelines, used to transport liquids, gases and solid materials, such as industrial pipelines, drainage systems and natural gas pipelines.

Transportation facilities

Used in railway and highway guardrail systems, as guardrail columns and beams, providing support and protection functions.

Other fields

Used in shipbuilding, power transmission and petrochemical fields to meet the specific needs of different industries.

 

Maintaining Black Anneal Tubes

 
 
01
 

Protecting against corrosion

Black anneal tubes can still rust, especially in humid and outdoor environments. Applying a protective coating is an effective way to prevent corrosion. Choose a coating appropriate for the environment and intended use, such as an oil-based paint or clear sealant.

 
02
 

Cleaning and surface preparation

Regular cleaning is essential to remove dirt, grime, and other contaminants that can accelerate corrosion.
For light dirt and grime, use a mild soap and water solution.
For rust removal, a commercial rust remover or a solution of equal parts vinegar and water can be used.
After cleaning, rinse the pipes thoroughly and ensure they are completely dry before applying any coatings or storing them.

 
03
 

Storage and handling

Store black annealed tubes in a dry, well-ventilated area to minimize moisture exposure.
Keep them off the ground and away from direct contact with moisture.

2 Inch Black Iron Pipe

 

Packaging and Shipping

 

productcate-1-1

 

FAQ

 

Q: Could You Provide The Compliment Samples?

A: Yes, we could provide the free samples on condition that it is available in stocks, however, the transportation fee is borne by buyer.

Q: Could You Produce According To The Samples?

A: Yes, we can customer-made by your samples or technique drawings, we can build the mold and fixtures.

Q: What's Your Delivery Time?

A: For stocks, we could transport the goods to loading port within 7 work days after we received the deposit. For production period, it usually takes about 15 days to 30 days after we received the deposit.

Q: What's The Terms Of Packing?

A: Generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers' requirement.

Q: What's Your Terms Of Payment?

A: 30%T/T as the upfront deposit, 70% before delivery, we will show you the photos and package before you pay the balance.

Q: How could you guarantee your products quality?

A: Each piece of products is manufactured by certified workshops, inspected by us piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.

Q: What is black annealed pipe?

A: Black annealed pipe is steel pipe that has undergone an annealing heat treatment. This process involves heating the steel pipe to a specific temperature and then slowly cooling it to eliminate internal stresses and increase its ductility, making it stronger and easier to forge. The black coating on the steel pipe's surface is due to the iron oxide layer formed during the manufacturing process.

Q: Does black annealed pipe rust?

A: Yes, black annealed pipe can rust, especially when exposed to moisture or corrosive chemicals. Although the annealing process creates a black oxide coating that offers some corrosion resistance, this coating can be damaged, leaving the underlying steel susceptible to rust.

Q: Is black annealed pipe better than galvanized pipe?

A: The choice between black annealed and galvanized pipe depends on the specific requirements of the project. Galvanized pipes are superior in resisting rust and corrosion due to their zinc coating, making them better suited for outdoor use and water transport. Black annealed pipes, while strong and more cost-effective, are best for applications where moisture exposure is minimal, like gas lines and indoor heating systems. Combining the two types of pipes in a single system is not recommended, as it can lead to increased corrosion due to galvanic action.

As one of the leading black anneal tubes manufacturers and suppliers in China, we warmly welcome you to buy high quality black anneal tubes in stock here and get quotation from our factory. Contact us for more details.

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