Tianjin HongTangDa Steel Tube Company has been engaged in the production of cold-formed and hot-rolled square and rectangular steel pipes for 5 years, with an annual production of 150,000 tons. It covered the size between 20*20mm-600*600mm, with the thickness between 1.0mm-25mm. The product type includes cold bending pipe, hot rolled steel, square tube, shaped tube, open C payments etc. We can undertake the production of straight pipe including six, eight prismatic, prismatic triangle, oval and so on; With its products of high accuracy and diversity, won the customer's praise  widespread  at home and abroad. Hong Tang Da company has passed ISO9001:2000 quality management system certification, the ABS certification authorized by United States classification society,   American petroleum institute API certification ,and also named the title of Tianjin Science and Technology Small and Medium-sized Enterprises .Except the square and rectangular steel pipes, we also can produce cold-formed special section pipes, open-type steels, and non-standard circular pipes. We are mainly according to these standards: EN10219,EN10210,ASTM A500,GB/T 3094-2000,GB/T6728-2002,GB/T 178-2005,JIS G 3466 and so on. br/ With good quality and competitive price, we warm a good reputation in domestic and international markets. We hope to build a good and long relationship with customers from home and abroad.

PRODUCT NAME Square pipe

SIDE LENGTH 10mm*10mm-600mm*600mm

THICKNESS 1.2mm-7.75mm

LENGTH 1-12meter/pc

STANDARD

ASTM A500,JG 178-2005,JIS G3466,EN10210,GB/T6728-2002,

GB/T6725-2002, GBT3094-2000

TECHNOLOGY ERW Welded

MATERIAL

ASTM A53,ASTM A106 ASTM A210,ASTM A283,ST33, ST37-2,ST52, DIN1626,

DIN1629,STPY41,G3452,G3457, S235,S355, Q195-Q235,Q345,20#, alloy steel etc

SURFACE TREATMENT

Paint oil; Varnish; Hot galvanized; Cold galvanized;Galvanize the raw strip steel;

Or according to customer's requirements.

PACKAGE

Tied with steel trips, then wrapped by plastic material.

Or according to customer's requirements.

USAGE

Widely used in mechanical manufacture, construction field, metallurgy industry,

farm vehicles, agriculture greenhouse, automotive industry, railway, highway guardrail,

container frame, furniture, decoration, steel structure etc

CERTIFICATES ISO9001-2000, ISO14000, ISO18000

THIRD PARTY INSPECTION

Welcome you to send a third party inspecting company

(BV, SGS etc) to check the quality of our final products.

Hollow section ms steel square pipe/hot dip galvanized squre pipe

1. Length: 8m-12m as standard.
2. Reputation first, best competitive price, high quality,  Quotes price promptly  and confirm the delivery on time!

3. Application : used for housing construction.

4. PRICE: Keep lower operating costs so as to offer competitive price for our clients.

5. Minimum Order Quantity: 500 MTS as per size.
6. Invoicing: Actual or Theoretical Weight Basis as buyer’s request.
7. Payment terms: TT payment in advance or irrevocable L/C at sight. 

8. Delivery time: Within 25-30 days after we receive your TT deposit or irrevocable L/C at  sight.

We have various kinds of building materials: Angle Steel, Channel Steel, deformed steel bar, Wire Rod, H-Beam Steel, I-beam Steel, IPE, Steel pipes....etc.

If you are interested in, please feel free to contact with us!