Piling pipe OD:219-3620mm Length:8.0-12m Grade:ASTM A252 Grades 1,2 and 3, modified Grade 3 (50 K.S.I. yield strength), ASTM A500 JIS A5525:SKK400,SKK490and other common specifications. Usage:for port construction, oil drilling, bridge construction,high-rise buildings Material General requirements:Q235 or Q345. Can also be customized according to the needs of users; Piling Pipe is widely used in coastal, river, lake area. Offshore deepwater terminal project in the country have also been large-scale construction in coastal areas, and as a major deep-water dock pile bearing capacity, generally use the large diameter spiral weld pipe, in addition, bridges, roads, high-rise building needs piling pipe etc. Specialty piling pipe:Micropiling pipe,Tripod piling pipe and Sheet piling pipe. Appearance quality:The surface of the steel pipe weld shall not have cracks, broken arc, arc pits and holes and other defects, there are defects in the welding seam to allow repair welding, defect repair or repair. The steel pipe is allowed to have the steel strip butt weld, and the steel pipe is welded with two pipe sections, and the butt welding can be carried out by submerged arc welding or manual welding process.