Overview Quick Details Place of Origin: Tianjin, China Application: Structure Pipe Alloy Or Not: Non-Alloy Section Shape: Square Special Pipe: Thick Wall Pipe Thickness: 1 - 15 mm Standard: ASTM, bs, GB, ASTM A53-2007, ASTM A671-2006, ASTM A252-1998, ASTM A450-1996, ASME B36.10M-2004, ASTM A523-1996, BS 1387, BS EN10296, BS 6323, BS 6363, BS EN10219, GB/T 3091-2001, GB/T 13793-1992, GB/T3901, GB/T9711 Grade: A53(A,B), Q235, Q345, Q195, A53-A369, Q195-Q345 Surface Treatment: Negotiable Tolerance: ±15% Processing Service: Bending, Welding, Punching, Cutting Secondary Or Not: Non-secondary square tube: ERW SQUARE HS CODE CARBON STEEL PIPE Product size: 15x15mm - 500x500mm Technique: electric resistance welding ( ERW ), Hot Rolled CO: MADE IN CHINA Manufacturer: Tianjin Reliance Steel Pipe Certificate & testing: ISO, BV, CE, SGS etc Shipping: by sea or train, as you require Payment terms: T/T or L/C at sight Tags: Welding square steel pipe/tubes for construction building Certification: ISO9001-2008/BE/CE/SGS etc. Type: Square Tubes Outer Diameter: 15x15-500x500mm No surface treatment carbon rectangle steel tube Product Description Product nameNo surface treatment carbon rectangle steel tube Size Thickness: Length 1.2-30m StandardASTM A500, BS1387,GB3091,ASTMA53, B36.10, BS EN1029, GB/T9711 etcMaterialSS400; S235jrh; ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,etc.FabricationPlain ends, cutting, etc Surface Treatment1. PVC,black and color painting2. Transparent oil,anti-rust oil3. According to clients requirementPackageBundle;Bulk;Plastic bags ,etc OthersWe 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 (%) Q1950.06-0.120.25-0.50<0.050<0.045<0.30>195315-43032-33Q2150.09-0.150.25-0.55<0.05<0.045<0.30>215335-45026-31Q2350.12-0.200.30-0.70<0.045<0.045<0.30>235375-50024-26Q345<0.201.0-1.6<0.040<0.040<0.55>345470-63021-22 Related products Production processCompany InformationTianjin 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. 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. FAQ galvanized steel pipeQ: Are you factory or trading company?A:Yes, we are factory in Tianjin of china for many years. We can give you the factory price directly. Q:Could you provide the samples?A:Sure, but it is just for normal sizes, and the freight will be paid by you. Q:What is your MQO?A:1tons, it is better for bundles. Q:Do you have stockist goods?galvanized steel pipeA:Yes, but you must send me the sizes you need , let me check it for you. Contact us