With advanced technologies and facilities, strict high quality regulate, reasonable price tag, excellent support and close co-operation with shoppers, we have been devoted to furnishing the best benefit for our buyers for Factory Price Trade Assurance Product!square Construction Pipe Made In Square Steel Tube For Galvanized Erw /pipes, And there are quite a few international friends who came for sight seeing, or entrust us to buy other stuff for them. You might be most welcome to arrive to China, to our city also to our factory! With advanced technologies and facilities, strict high quality regulate, reasonable price tag, excellent support and close co-operation with shoppers, we have been devoted to furnishing the best benefit for our buyers for Square Galvanized Erw Steel Tube /pipes, Square Steel Tube For Construction, Trade Assurance Product!square Construction Pipe Made In, We provide good quality but unbeatable low price and the best service. Welcome to post your samples and color ring to us .We will produce the goods according to your request. If you are interested in any products we offer, please feel free to contact us directly by mail, fax, telephone or internet. We are here to answer your questions from Monday to Saturday and looking forward to cooperating with you. Product Description Size O.D.: 20x20-400x600mm W.T.: 1.2-11.75mm Length: 3.0-12m Standard ASTM A500, BS1387,GB3091,ASTMA53, B36.10, BS EN1029, GB/T9711 etc Material SS400; S235jrh; ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,etc. Fabrication Plain ends, cutting, etc Surface Treatment 1. PVC,black and color painting 2. Transparent oil,anti-rust oil 3. According to clients requirement Package Bundle;Bulk;Plastic bags ,etc Others We can do special orders as customer's requirement. We also can provide all kinds of steel hollow pipes. All the production process are made under the ISO9001:2008 strictly     Elements     Material    Chemical Composition% Mechanical Property C% Mn% S% P% Si% Yield Point (Mpa) Tensile Strength(Mpa) Elongation   (%)  Q195 0.06-0.12 0.25-0.50 <0.050 <0.045 <0.30 >195 315-430 32-33 Q215 0.09-0.15 0.25-0.55 <0.05 <0.045 <0.30 >215 335-450 26-31 Q235 0.12-0.20 0.30-0.70 <0.045 <0.045 <0.30 >235 375-500 24-26 Q345 <0.20 1.0-1.6 <0.040 <0.040 <0.55 >345 470-630 21-22 Related products Production process Company Information Tianjin Reliance Company , is specialized in manufacturing steel pipes. and many special service can be done for you. such as ends treatment, surface finished, with fittings, loading all kinds of sizes' goods in container together, and so on for Our office is located in Nankai distric, Tianjin city, near Beijing, the capital of China, and with excellent location.It just takes 2 hours from beijing international airport to our company by high speed rail.and the goods can be delivered from our factory to Tianjin port for 2 hours. you can take 40 minutes from our office to Tianjin beihai international airport by subway. Export record: India,Pakistan,Tajikistan,Thailand,Myanmar,Australia,Canada,United States,United Kingdom,Kuwait,Mauritius,Morocco,Paraguay,Ghana,Fiji,Oman,Czech Republic,Kuwait,Korea and so on. Packaging & Shipping Our Services: 1. We will provide you with detailed technical data and drawing. 2. Strict quality control and careful supervision to ensure the best crane for you. 3. Strict process control to make sure the crane will be delivered on time. 4. We will help handling shipment documents. 5. Our senior engineers can provide installation guidance, commissioning and training services. 6. Delivery with English user manual, parts manual, product certification and revelant certificates. 7. 12 months warranty after installation and commissioning in additional to human damage factor. 8. Technical advisory for any time and engineers available to service machinery overseas.