Tiếng Việt
ភាសាខ្មែរBlack square steel is a type of steel that many people are interested in today because it is quite commonly used in the construction industry. So what is black square steel? What should I keep in mind when buying black square steel? Where can I buy quality, cheap black square steel in Hanoi? Find the answer with Bao Tin Steel in the article below.
What is black square steel?
Black square steel is a type of steel square produced from hot-rolled steel sheets after rolling and shaping into cross-sections (square or rectangular). The surface of this material has a characteristic dark blue color, which is the original color of steel. From there, it is easy to distinguish galvanized square steel with the eyes.
Because black square steel has not undergone an external galvanizing process, it is commonly used in structures that are not frequently exposed to seawater, acids, or toxic chemicals, or where weather conditions are severe. harsh weather.
Types of black square steel
Currently on the market, there are two commonly used types of black square steel: square black steel and black rectangular steel.
Black square steel
Black square steel is a type of steel whose cross-sections have equal length and width (square cross-section). This type of steel is often used to make roof frames, construct houses, factories, warehouses, process household appliances, etc.
- The size of black square steel ranges from 12mm to 90mm
- Thickness from 0.7mm – 4.0mm
Common sizes of black square steel: 10×10, 12×12, 14×14, 20×20, 25×25, 30×30, 50×50, 100×100, 120×120,…. (The unit is mm)
Black rectangular steel
Black rectangular steel is a type of steel whose cross-section has a length longer than its width (rectangular cross-section). This type of steel is often used for beam structures, frames, shipbuilding technology, steel furniture, the automobile manufacturing industry, household appliances, etc.
- Sizes of black rectangular steel range from 10x30mm to 60x120mm
- Thickness from 0.7mm to 4.0mm
Common sizes of black rectangular steel: 13×26, 20×40, 25×50, 30×60, 40×60, 10×100, 50×100, 60×120,… (The unit is mm)
Application of black square steel
Black square steel is a product that is commonly used in many different industries today. Detail:
- In construction, engineering technology, and public works. Black square steel is used for roof frames, scaffolding, building foundations, etc.
- Used as antenna towers, radio towers, etc.
- Used a lot in interior and exterior decoration, such as making truck frames, and conduit sleeves,…
- Manufacturing car frames, the mechanical manufacturing industry,…
Advantages and disadvantages of black square steel.
Black square steel is one of the product lines that is being used by construction contractors as well as customers. Right now, Bao Tin Steel will reveal the advantages and disadvantages of black box steel so that customers can choose the best product for themselves.
Advantages of black square steel
- Long lifespan. Depending on weather conditions and the working environment, black box steel has a lifespan ranging from 40 to 50 years.
- Low cost. The production cost of black square steel is low, so the selling price is not too high; the price is lower than other types of steel on the market (galvanized box steel, etc.).
- Low maintenance and upkeep costs. If black square steel is used in normal environments (life expectancy up to 50 years), If used in harsh environments (life expectancy can be 30 years), Therefore, maintenance costs are economical for businesses.
- Easy check-in. During the acceptance process of the project, you can easily observe and evaluate the product with your eyes in the weld position.
Besides the outstanding advantages mentioned above, black square steel still has some disadvantages, as follows:
Disadvantages of black square steel
- Black square steel does not have a galvanized layer inside or outside, leading to a situation where the product can be highly rusted.
- The material is not suitable for use in working environments near seawater, acids, harsh climates, etc.
- The product aesthetics are not high because the surface layer is black. Therefore, they are not often applied to projects that require creativity.
What should you pay attention to when buying black square steel?
To ensure the quality of the project, choosing a quality black square steel source at the right price requires relying on practical experience to know how to choose. So, what is the experience of choosing quality black square steel at the right price?
Choose to buy black square steel of clear origin.
No one wants to buy a product of unclear origin or accompanying documents. You need to pay attention to products like this; they may be pirated goods or poor-quality goods. These products are often not tested, so using this type of steel will affect the quality of the project.
Correct product specifications
A genuine black square steel product with a clear origin will have standard specifications, according to inspection documents. Because genuine products always have a standard, clear mold.
Product characteristics
Canned steel products cannot have other colors than the typical dark blue. In addition, black square steel usually does not peel off the black plating layer. If you find the product peels easily, you should pay attention to this product. Avoid the situation of “losing money and suffering.”.
Product price
A genuine black square steel product will have a common price in the factory and on the market. If there is a difference, it is not much. You need to pay attention to unusually cheap products and don’t have the mentality of “being cheap.”.
Choose a reputable and famous brand
You should choose black square steel from famous brands that are highly appreciated by users. Here are some reputable brands: Hoa Phat, Nam Kim, VivaOne,…
Location selling genuine black square steel in Hanoi
Before deciding which material to use in general, or black square steel in particular, you need to consider whether it meets the project’s requirements. And it’s important to learn about the quality and reputation of the product supplier.
Don’t rush to buy black square steel at prices cheaper than the floor price at online addresses. Because you can easily encounter the situation of “losing money” when buying steel at a fraudulent unit. Advice:
If you are looking for a reputable black box steel seller in Hanoi, you can learn about Bao Tin Steel Company Limited.
Bao Tin Steel is still a reliable name in the distribution and sale of black box steel in Hanoi and Ho Chi Minh City. Products provided by Bao Tin Steel come with all types of documents, such as commercial invoices, commercial contracts, certificates, product quality inspection certificates,…
With more than 10 years on the market, Bao Tin Steel has affirmed its position in the industrial equipment and supply industry. The company always ensures correct, sufficient, and quality delivery. That’s why the company receives many positive reviews from customers and partners from all over the world.
Conclude
Hopefully, the above article has answered your questions about black square steel as well as provided a reputable address for selling black square steel in Hanoi. If you have any questions, please contact Bao Tin Steel for a free consultation and purchasing support.