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3x3 Galvanized Thick Wall Square Tube Cold Rolled EN10025 Q355B

Place of Origin China
Brand Name TONGMAO
Certification ISO9001 MTC
Model Number steel pipe
Minimum Order Quantity 3tons
Price US $800-1200/ Ton
Packaging Details Standard Packing
Delivery Time 7-15days
Payment Terms L/C, T/T
Supply Ability 1000tons/year

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Product Details
Standard ASTM,AISI,JIS,GB,DIN Length 5.8m/6m Or Based On Your Request
Grade ASTM A554, A249,A269,A270 , A312 Size 20x20--500x500mm
Wall Thickness 0.5-20mm Name Square Pipe
Surface Black, Or Galvanized And Oiled To Prevent The Rust
High Light

Q355B thick wall square tube


EN10025 gi square tube


cold rolled 3x3 galvanized square tubing

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Product Description

Thick Wall Square Tube Q355B Square Tube Rectangular Steel Pipe National Standard Galvanized Square Tube

Square tube, as the name implies, it is a kind of form of tube type, a lot of kinds of material of material can make the tube body, it is medium in, what, in what place, most of the square tube steel tube, for most, after unpacking, smooth, curly, form circular tube welding, again by circular tube rolling into square tube and then cut into required length. It is generally 50 square tubes per package in spot with large specifications in the majority of 10*10*0.8-1.5~~500*500*10-25, square tubes are divided into structural square tubes, decorative square tubes, construction square tubes, mechanical square tubes and so on.

Square tube is a kind of hollow square cross section light thin wall steel tube, also known as steel refrigeration bend section. It is made of Q235 hot rolled or cold rolled strip steel or coil plate as base material by cold bending forming and then by high frequency welding made of square section shape and size of steel. In addition to the thickening of the wall, the corner size and edge flatness of hot rolled extra-thick wall square tube reach or even exceed the level of resistance welding cold forming square tube.


Black / Galvanized Steel Square / Rectangular tube




Wall thickness



5.8m/6m  or based on your request


EN10025.EN10219,ASTM A500 and so on (the Chinese material can be Q195,Q235Q345)


Black, or Galvanized and Oiled to prevent the rust  

End finish

Plain end


Steel construction, mechanical, manufacturing, construction, automobile manufacturing,

shipbuilding, electricity and more


1.Big OD:in bulk
2.Small OD:packed by steel strips
3.woven cloth with 7 slats
4.according to the requirements of customers


by bulk or load into 20ft / 40ft containers

Delivery time

Within 20days or as your request

Payment Terms

T/T or L/C at sight
Terms of trade :FOB ,CFR,CIF ,EXW


​Product display:

3x3 Galvanized Thick Wall Square Tube Cold Rolled EN10025 Q355B 0

3x3 Galvanized Thick Wall Square Tube Cold Rolled EN10025 Q355B 1



SHANDONG TONGMAO SPECIAL STEEL CO.,LTD is reputed at supplying stainless steel pipe,carbon steel seamless pipe,alloy steel pipe,hot-rolled steel pipe,cold rolled steel pipe,galvanized steel pipe,welded steel pipe,precision steel pipe,also supply steel plate,steel coil and lead sheet etc.
Our Company combined production,trade,the development of new products and services together,is one of the provincial large-scale iron and steel enterprises.Factory products standards are qualified to meet ISO/GB/ASTM/EN/BS/JIS etc.
The company in the long-term development process,we are in cooperation with Baosteel Group,Tianjin Steel Group,Baotou Steel Group,Panzhihua Iron and Steel Group,Taiyuan Iron and Steel Group,Anshan Iron and steel Ling,Daye Steel Group and other well-known domestic mills,and established long-term friendly cooperative relations with not only the domestic groups,but also abroad relations,Assab special steel,Japan's Hitachi,Japan Datong special ,and Germany steel,special steel,Austria special steel and other well-known foreign groups.
Our company insists the principle of honesty and trustworthiness,has received trust and support from both the domestic and foreign manufacturers.
We will always adhere to the belief of credibility is the life to develop international market,and try our best to be skilled,highly responsible team ,through win-win cooperation,to meet the brilliant tomorrow!


Can you send products to my country?
Sure, we can. If you do not have your own ship forwarder, we can help you.

Will you delivery the goods on time?
Yes,we promise to provide best quality products and delivery on time no matter if the price change lot or not.Honesty is our company's tenet.

How can I get a quotation from you ?
You can leave us message, and we will reply every message in time. Or we may talk on line by Trademanager.
And you can also find our contact information on contact page.

How do you make our business long-term and good relationship?
1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them

Please contact me for more info today!