Square And Rectangular Tube - Chinaprice: contact company for price
3.Material: Q235, Q345.20#.L245
4.The standards: GB/T6725-2002, GB/T6728-2002
8.Bend test: qualified
11.Wall thickness: 8.0 ~20.0mm
12.Application: construction, road and bridge, transportation, decoration
- Phone: 8615022560286
- Address: No.8 binbao road,Ninghe economic development zone, Tianjin , China
- Website: http://www.liyesteelpipe.com
Published date: October 19, 2013 -
- Business Description: The Company invested 120 million yuan and 50 million yuan respectively
to introduce domestic advanced high frequency welding square and
rectangle pipes production line and straight seam submerged arc welding
pipes production line.
The forming method of square and rectangle pipes is ERW,using high quality rolled plate and the reinspection do not qualified after slitting or coil automatic forming and welding, computer control best amalgamation in temperature at the same time, the tube inside and outside burr, nondestructive testing qualified. The products are widely used in construction steel structure, large stadium, lifting equipment, shipbuilding and other fields.its annual production is300000tons.
Specification:250*250~500*500mm,rectangular tube specifications is up to 600 mm,
Wall thickness: 8.0 ~20.0mm,
Material quality: Q235,Q345.20#.L245.
The standards: GB/T6725 2002, GB/T6728 2002 .
The forming way of straight seam submerged arc welding pipes is JCOE, Products can be used in urban building structures, Bridges, DAMS, onshore and offshore oil and gas, coal slurry, slurry medium such as transport and offshore platform, power station, chemical industry, etc. its annual production is 100000 tons.
Specification: 351 mm 1220 mm.
Wall thickness:7 40mm,
The length:6 12.8m.
Material quality: Q235,Q345.20#.Q420.X42 70
The standards" GB/T3091 2008, GB/T9711.1 1997, API5L.
We have our own patent and utility patents, namely, feed roller device of a welder,a multiply caliber roundness correction unit,a submerged arc welding pipe butt joint device , a high frequency welder squeeze roller adjusting drive set ,a milling machine automatic pin ,a production line of cold formed steel shearing butt centering device .
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