High strength of rectangular and square tubes
Square 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 square cross section shape, the size of the steel.
Size |
10mm*10mm-600mm*600mm |
Wall thickness (W.T.) |
0.5mm-20mm |
Length |
1m-12m ,by customer’s requirements |
Standards |
ASTM A500, GB/T6728-2002 |
Materials |
Q195,Q235,Q345 |
Main market |
Middle East, Africa, Asia and some European country and America ,Australia |
Country of origin |
Tianjin,China |
Payment terms |
T/T, L/C, galvanized square steel pipes/seamless steel pipes Trade Assurance Order |
Terms of trade |
FOB ,CIF,CFR |
Minimum order |
10 tons |
Section Shape |
Square |
Certification |
ISO,BV,SGS |
Advantage |
1, reasonable price with excellent quality 2, abundant stock and prompt delivery 3, rich supply and export experience, sincere service |
Company Information
Tianjin Erf Metal Structure Co., Ltd. which build in 2005,is the leader of profile steel industry and specialized in the production of cold bending profiles such as ", C/Z/U/H/T/I/H ", double c &double u channel, solar photovoltaic stents, Bridges, hat channel profile, light steel keel, hot dip galvanized steel structure, steel structure frame, steel plate, galvanized coil, angle steel, rectangular tubes, square tubes, small specifications profiles and different profile, etc.
Our products
Product profile:
Our ServicesOur products has the following advantages:
1.As a manufacture, we can control our cost. So our price is more reasonable than other's
2.Manufacturing scope: thickness from 1mm to 12mm.
3. Size: As per customer's requirement
Packaging & Shipping
Packing details: in bundle by steel strip or as customer's requirement.
Delivery Details:10-30days after received the deposit.
FAQ1. 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
Seamless Steel Pipe mills, volume should go through continuous annealing (CAPL unit) to eliminate cold hardening and rolling stress, or batch annealing reach the galvanized square steel pipes/seamless steel pipes mechanical properties of the corresponding standard specifies. Seamless Steel Pipe surface quality, appearance, dimensional accuracy galvanized square steel pipes/seamless steel pipes better than hot-rolled plate, and right-rolled thin product thickness is about 0.18mm, so the majority of users favor.
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Seamless Steel Pipe deep processing of high value-added products. Such as electro-galvanized, hot dip galvanized, electro-galvanized fingerprint resistant, painted steel roll damping composite steel, galvanized square steel pipes/seamless steel pipes laminating steel plates, etc, so that the excellent quality of these products has a beautiful, high resistance to corrosion, has been widely used.