Rectangular tube is a hollow square cross section light thin wall steel tube, also known as refrigeration bending steel profiles. It is based on Q235 hot rolled or cold rolled steel strip or rolled plate parent metal by cold bending forming by high frequency welding again after made of rectangular cross section shape, the size of the steel.
1). black steel tube |
2). galvanized steel tube |
3). galvanized section steel:angle steel,channel steel,I/H Beam,flat and round bar |
4). rotary blade for farm and garden |
5). street light pole |
6). we also can galvanize anti-corrosion processing surface for you.
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Commodity |
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Shape | Round pipe | Square tube | Rectangular tube |
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Outer diameter | 10.3-2032mm
| 20*20-400*400mm
| 20*30-400*500mm
|
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Wall thickness | 1.73-52.37mm | 0.5-25mm | 0.5-25mm |
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Length | 1m--5.8m/6m/12m and random length | |||
Tolerance | OD: +/-5%; Thickness: +/-5%; Length: +/-10%. | |||
Standard | Round pipe: GB/T3091, BS1387-1987, ASTM A53, DIN2440, EN39-2001. Square/Rectangular tube: GB/T6728-2002, ASTM A500 Gr A B C, JIS G3466. | |||
Grade | Q195, Q235, Q345, ST37, ST52, Grade A, Grade B. | |||
End finish | Plain/ beveled ends or threaded with sockets/coupling and plastic caps. | |||
Usage | Scaffolding pipe, Structure pipe, Fence/Door pipe, Furniture, Low pressure fluid pipe for water oil or gas, Boiler pipe. | |||
Inspection | With hydraulic testing, eddy current and infrared test | |||
Standard export packing | In bundles by steel strips, waterproof woven cloth with 7 slats, then pack into 20' or 40' container. | |||
Delivery time | Less than 20days, ASAP to save your time. | |||
Payment Terms | T/T or L/C | |||
Others | 1:Special design available according to the clients' requirement. 2:Pipe can be painting. 3:All production process are under the ISO9001:2008 strictly | |||
Application
Widely used in construction, bridge, highway, windows of model steel door, machinery, chemical industry, supermarket goods shelf and so on.
Our Advantages:
1) Contract Manufacturing: OEM Service Offered, Design Service Offered, Buyer Label Offered
2) Small quantity is welcome
3) Non-standard products can be ordered
4) A strong production capacity and a large inventory guarantee the quick delivery
5) We have our own steel mill, so business without a third-party
Payment & Shipping Terms:
Price: | FOB USD 600~800 / Ton |
Minimum Order Quantity: | 10 Ton/Tons per size |
Port: | Tianjin port |
Packaging Details: | export packing |
Delivery Time: | Within 20 days from receiving L/C or Deposit |
Payment Terms: | L/C,T/T |
Supply Ability: | 500Ton/Tons per month |
The company introduces foreign advanced countries building experience, promoting construction the contractor for the business philosophy, integrating design, man processing to installation, let the construction unit can get good service from beginning to end and high-quality low-cost construction finished products; Company relying on the advantage of colleges and universities, hired authoritative expert panel members, China steel structure steel structure makes the precision of the products, to better serve the customer's requirements. Tianjin Erf metal co., LTD. Of integrity, strength and product quality obtain industry acceptance. Welcome friends from all walks of life come to visit, guidance and business negotiation.
ISO System
· SGS and BV Audited company .
· Industry experience over 8 years.
· Management Systems-Internal Software
· Finished Product Inventory-More Than 500 Tons.
· Raw Material inventory -Over 800 Mertic Tons.
· Shipment of goods -More than 20 countries worldwide.
· We have the most convenient transport and prompt delivery.
· We offer competitive price with best service .
· We have high technical production line with top quality products.
· We have win high reputation based on best quality products.
Main features: under pressure, support time, easy to install is not easy to deformation, etc.
Main application: mainly used for mine, mine roadway secondary supporting of roadway, and mountain tunnel support purposes.
Tianjin Erf metal structure co., LTD. (subordinate KaiLongGang structure co., LTD) is a positive response to the national development and environmental protection, energy-saving and efficient steel structure industry, and was engaged in steel structure of the system design, research and development, production and installation of professional firms.
Our company is mainly engaged in cold bending steel, cold bend profiled steel, CZU type steel; Galvanized steel, steel door frame; Hot dip galvanized steel structure; Sisheng metal manufacturing, rolled plate kaiping; Steel, strip steel, and other products.
Global recruitment of agents, distributors, wholesalers ; Undertake ODM & OEM orders.
Sincerely expect your joining and cooperation for the mutual win-win business !
24 Hours hot Line:+86-13207682690
Why choose us?
1. Many years of manufacturing experience.
2. We production capacity reaches 1 million square meters of annual metals aluminum curtain wall panel,2 million square meters of ceiling slabs, and more than 1 million tons of aluminum profile processing spray coating. Incorporating product design, manufacture, installation and good service.
3. We Pay more attention to product quality, follow the quality first, the user first, innovation and make perfection more perfect quality policy we with Armstrong, hunter cooperation for many years, the use of their trademarks , we provide excellent products and high quality service for our customer.

We specialized in producing cold bending steel, cold bend profiled steel, C/Z/U type profile steel; Galvanized steel, steel door frame; Hot dip galvanized steel structure; metal wire rope manufacturing, rolled plate kaiping; Steel, strip steel, and other products.
.Along with the people of the city construction and construction quality requirement is increasing day by day, the steel structure as a highly industrialized that are widely used in airports, stadiums, station, exhibition halls, clubs and other public buildings, the novel structure form, the model is bold and rich tension, added a lot of bright spots for the city.Steel structure system is due to its light weight, easy installation, short construction period, good seismic performance, investment recovery faster, less environmental pollution and other comprehensive advantages, and widely used in factories, warehouses, office buildings, high-rise residential and other industrial and civil buildings.

Company tenet: the same products compare quality, same quality compare price, the same service compare the prestige, with our strong technical force, advanced production technology and perfect after-sales service for the purpose, hope to cooperate with friends from all walks of life, hand in hand, create brilliance!
Our service: to ensure quality, ensure delivery time time, guarantee the quantity.
Service tenet: the abundant strength, the high quality products, low prices, first-class service.
Solemnly promises: to guarantee the best products, best quality, lowest price, the most perfect service to reciprocate the new and old customers trust.Management principle: customers first, good quality, variety complete, the price is reasonable.

12m steel beam loading into 40 foot container by diagonal. We have rich experienced to do it. Usually 40GP can load 26 tons.
Standard export seaworthy package, it uses steel strip with bundle according to product's size.
Any way,according to customer's requirements

Point:
1)More than 10 years cold-formed "C,Z,U,H" profile steel professional manufacturer.
2)Reliable OEM factory, clients from whole world.
3)High Quality, long service life,fast delivery,competitive Price.
4)ISO9001, CE, Certificates.
5)Can be maked as customer's design.
Our service:
We have more than 10 years experience in profile steel
Excellent quality control is one of our main principles.
Our design, producing and testing are strictly complied with ISO9001 standard.
Now our products are being exported all over the world.
We provide OEM service, accept customer label, could develop the product with your drawings or samples.
Any question, will be replyed within 24 hours.
Other terms
1) About Samples
We can't provide samples , you could notice us the detailed sizes or drawing,and then we'll quote and product it.
2) About Packing
seaworthy carton or according to customer's requirements
3) Terms of payment:
we accept L/C,D/A,D/P,T/T,Western Union,MoneyGram
4)Terms of Shipment:
average7-14days after receiving deposit.,MOQ:10ton/model
5)Ports of shipment:
Tianjin Xingang Port, by sea
)Inspection:
100% inspect before deliver
1. Are you manufacturer?
Yes. We are specialized in producing many kinds of profile structure and have many years experience.
2. Do you have any certifications?
Yes, with ISO 9000 & CE certificate, our products are of high quality and we have professional engineers and staff team.
3. Which field are your products applied to?
Our products are widely used into buildings, railways, bridges, stadiums, port, hull assort ,offshore oil drilling platform, wind tower drum and so on light and heavy steel structure etc
If you have any questions about our products,please feel free to contact us,we will be much appreciate to serve you.Thank you for choosing Erf!
Christy Cao
Tianjin Erf Metal Structure Co., Ltd.
Address: Tianyu technology park,in the eastern side of the plaza,Jinghai District,Tianjin,China
Tel:+8615522380609 Whatsapp:+8618626642484
Skype:cn-christy QQ:985727464
Website: Wechat:985727464
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