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20 years Black Hollow Sections manufacturer

with 80,000sqm Factory

the annual production is 600,000 tons

black steel pipe

Are you looking to buy “Black Hollow Sections“? If so, you’ve come to the right place!

TYT Steel has more than 20 years of industry knowledge, experience, and partnerships, allowing us to provide tonnes of steel at competitive prices most importantly, this means your projects are completed on time and on budget.

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ERW Black Steel Square Hollow Sections for Construction

Materials: Q345, Q235,60*2, 56*2mm, 48*2.0mm, 40*2.0mm.

Surface treatment: Electroplated, hot dip galvanized, painting.

Procedure: Cutting, Drilling, Plating cutting, Forming, Welding, Remove welding slag,Galvanized, surface finishing, packing, shipping.

Components: Standard, Ledger, Brace, plank, base plate.

Certificated: ISO9001 and SGS.

Square tube is a kind of light thin-walled steel tube with hollow square section, also known as steel cold-formed profiles. It is a type of section steel with square cross section, which is made of Q235 hot-rolled or cold-rolled strip steel or coiled plate as the base material, after cold bending and forming, and then high-frequency welding. In addition to wall thickening, the corner size and edge straightness of the hot-rolled extra thick wall square tube reach or even exceed the level of the resistance welded cold formed square tube. It has good comprehensive mechanical properties, weldability, cold and hot working performance and corrosion resistance, and good low-temperature toughness.

2 inch black square steel pipe
ms square tube
Outer Diameter 10*10-400*600mm
Wall thickness 0.6-12mm
Length 1-12m ,according to customers'requirements, stock is 6m
Material Q195, Q215 ,Q235 ,Q345
Standard ASTM A500,GBT 6728,GB T 3094
Packing 1)Big OD :in bulk
2)Small OD:packed by steel strips into bundles
3)According to the requirement of the customers.
Technique Welded / ERW / Cold drawn
Main Market Middle East, Africa, Asia and some European country and America ,Australia
annual output 200,000 tons
Remarks 1.Payment terms :T/T deposite+B/L copy or L/C at sight

Why Work With TYTSTEEL?

Tianjin Tianyingtai Steel Group Is Located In Jinghai County, Tianjin,
and is professionally engaged in steel production sales, steel processing, greenhouse engineering with accessories, and export business. It has been experienced for 20 years so far. That’s right, you can rely on us!

Still doubtful? Here are other reasons why we’re your best bet:

We’re expanding fast. We currently have 500+ employees and 80,000 square feet of factory space ready to serve you.

800+ global, happy customers. We’ve made products for firms in Peru, the Philippines, Thailand, Ghana, and more.

We have our own factory and experimental test center to achieve cost and quality control. Connect with us on our site and we’ll get back to you ASAP.

Enterprise Certificate

Our company has passed international certifications such as ISO, CE, LR, and the Philippines, and supports third-party testing such as SGS and BV. we’re 100% legit.

Galvanized pipe certificate
Galvanized pipe certificate
Galvanized pipe certificate

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Comments from Our Customers

Have a look at how some of our clients perceive our goods and services:

B2B And B2C Solution

The customers who have cooperated with us for a long time have a profit growth rate of 18% in the first year and 29% in the second year.


If you’re an importer, or a distributor, or a wholesaler, you need large quantities

1. Our annual export volume can reach 600,000 tons. We know your market very well and we will do our best to help you expand your business there.
2. We have a regular shipping company that can save you a lot of money on freight.
3. We have our own factory and processing line, which can be mass-produced.
4. New customers can get a 1%-5% discount on their first order.


If you’re an end user, you’re buying a small amount, don’t worry

1. We have stock products for common products on the market

2. We support 10%-30% advance payment.

3. It doesn’t matter if the product you want is short of the minimum order quantity. Don’t worry, we can produce together with the mass products.

4. Experienced consultant for one on one service to help you increase profits.

Contact TYT to Start Your Business

No matter what Standard of Black Hollow Sections you want, based on our extensive experience, we can manufacture it.

Start earning substantial profits in your country today!

Ask For A Quick Quote

We will contact you within 1 working day, please pay attention to the email with the suffix “@tytgg.com.cn”