Welded steel pipes with hot dip coating or electric-galvanized coating on the surface of galvanized steel pipes. Galvanizing can increase the corrosion resistance of steel pipes and prolong their service life. Galvanized pipes are widely used, not only as pipelines for water, gas, oil and other general low-pressure fluids, but also as oil well pipes and oil pipelines in the petroleum? industry, especially in offshore oil fields, oil heaters, condensation coolers, tubes for coal distillation and washing oil exchangers in chemical coking equipment, and tubes for trestle pipe piles and support frames in mine tunnels.

Standard：
API 5L, 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/T9711
Wall thickness
1mm–12mm,or as your requests
Outer diameter
20mm–508mm,or as your requests
Length
Length:Single random length/Double random length
5m-14m,5.8m,6m,10m-12m,12m or as customer’s actual requests
Surface treatment
1. Galvanized
2. PVC,Black and color painting
3. Transparent oil,anti-rust oil
4. According to clients requirementApplication Civil engineering, architecture, steel towers, shipyard, scaffoldings, struts, piles for suppression of landslide and other structures

Packaging & Delivery
Packaging Details:
1. Small OD: In hexagonal bundle with steel strips
2. Large OD: In bulk
3. Wrapped in waterproof plastic woven bag
4. Filled in wooden cases
5. As required
Delivery Detail:Shipped in 7-15 days after received deposit

Company Profile

Tianjin Rainbow Steel Group was founded in 2000, Located in Tianjin City. With development of past 20 years, Rainbow Steel has became into an integrated iron and steel enterprise of galvanized steel pipe, galvanized steel angle bar, galvanized profiles, galvanized steel structures for Infrastructure Construction, Building Industry, Agriculture and New Energy area. We are also the biggest electrical transmission steel tower manufacturer in North of China. Rainbow Steel Group has several subsidiaries which including steel processing lines, steel cutting, welding and stamping workshop, galvanizing mill and huge storage house.Our team has manufacturing technologies, processing experiences, engineering capabilities and advanced equipment. Our people are intelligent and hardworking. Our main exporting products are galvanized steel pipes, jobs of steel structures or frame works, galvanized iron angle bar, flat bar, iron channels and beams, steel profiles and all other steel jobs which will need further processing.With the global trending situation development, Rainbow steel is committed to develop innovative technologies and excellent service to meet the growing solar energy needs. Our team has over 10 years’ experience and successful cases at solar mounting (solar bracket) business. Our products have obtained the certificate of TUV, CE,ISO 9001-2008 and so on. Laser cutting,welding and stamping workshops are available for normal and customized goods.