EN LSAW Steel Pipe
LSAW steel Pipe,Longitudinal-seam Submerge arc welding steel pipe,DSAW steel pipe.
The material of LSAW steel pipe is unit middle or heavy thickness sheet,coiled in the molding or forming machine, welded by double submerged arc welding and expand the diameter.the specification scope is wide,and have good toughness,ductility,uniformity,compactness.Advantage of LSAW steel pipe the difference with SSAW steel pipe: Diameter large,heavy wall thickness,anti-high pressure,anti-low temperature and corrosion. Our Allland could supply EN standard LSAW pipes, such as EN 10219, EN10217, EN10224, EN10219 Cold formed welded structural hollow sections of non-alloy and fine grain steels.Part 2: Tolerances,dimensions and sectional properties, specifies tolerances for cold formed welded circular,square and rectangular structural hollow sections,manufactured in wall thickness up to 40mm. Circular outside diameters up to 2500mm, The formulae for calculating sectional properties of sections manufactured to the dimensional tolerances of this standard,to be used for the purposes of structural design,are given in Annex B. Dimensions and sectional properties for a limited range of sizes are given in Annex C. Technical delivery conditions are specified in EN10219-1.
DIN EN 10217-1-2005 is the standard aboutr welded steel tubes for pressure purposes - Technical delivery conditions - Part 1: Non-alloy steel tubes with specified room temperature properties; German version EN 10217-1:2002 + A1:2005
Longitudinal double submerge arc welding steel pipe(LSAW steel pipe) is made of steel plates of hot rolled by JCOE. JCOE means the forming process,as J shape,C shape,O forming,inner&outside welding and cold expansion after welding.It only has one straight
The dimensions of the pipes and deviations must comply with values set by GOST-8731-1974/GOST 8732-78
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