SCH40 black cs steel pipe and tubes ERW steel pipe size 1/2 inch
(1)Square steel tube: the outside diameter from 10mm*10mm to 300mm*300mm, wall thickness from 0.4mm to 12mm.
(2)Rectangular steel tube: the outside diameter from 10mm*20mm to 200mm*400mm, wall thickness from 0.4mm to 12mm.
Standards: GB/T3091-2001,BS1387-1985, ASTM-A53,JIS-G3444,SCH10-40, DIN2440 and EN10219.
Application: Crude oil pipelines,Natural gas pipelines ,Water supply lines.Foundation pipes ,industrial pipelines networks ,Steel constructrutures,etc.
(1)Welded round steel pipe: the outside diameter from 10mm to 273mm, wall thickness from 0.4mm to 12.0mm.
(2)Spiral steel pipe: the outside diameter from 219mm to 2200mm, wall thickness from 4.5mm to 15mm.
Standards: GB/T3091-2001,BS1387-1985, ASTM-A53,JIS-G3444,SCH10-40, DIN2440 and EN10219.
Application: Crude oil pipelines,Natural gas pipelines ,Water supply lines.Foundation pipes ,industrial pipelines networks ,Steel constructrutures,etc.
♦ Difference
The black annealed pipe is a relatively common type of steel pipe, and it is also a type of steel pipe with a thin annealed density. Its physical properties are soft, and it can achieve the effect of not cracking and flaring. Galvanized steel pipe is the reprocessing of welded steel pipe, which is made into galvanized steel pipe by hot-dip galvanizing of welded steel pipe. For water supply, it is mainly galvanized pipes used. It is actually a steel pipe with a zinc coating. Adding zinc makes pipes more durable and also increases resistance to corrosion. Galvanized pipes have a property where the zinc starts to flake off after a while. That’s why it’s not suitable for carrying gas, as this zinc causes pipe chokes. It is very durable and lasts for over 40 years, which is why it is widely used as railings, scaffolding and all other construction projects.
♦ Application
Black steel pipe is widely used in furniture making, machinery manufacturing, construction industry, metallurgical industry, agricultural vehicles, agricultural greenhouses, automobile industry, railway, container skeleton, furniture, decoration and steel structure fields.
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About Us
Tianjin Goldensun Steel Group provides continuous supply of steel products for 15 years to many large enterprises in Africa, Europe, Southeast Asia and the Middle East. So many trader, distributors, wholesalers and retailers who lead the local market have a very close relationship with us.
Our factory is located in the largest steel base of China-Hebei province, speci-alized in producing black square tubes and round pipes, galvanized strip and galvanized steel pipes.
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