ASTM A252 Piling pipe
Steel pipe piles of cylindrical shape, in which the steel cylinder acts as a permanent load-carrying member, or as a shell to form cast-in-place concrete piles.

Grade
1, 2, 3

Spefication
*Out Diameter: 219.1-1016mm(8″-40″)
*Wall Thickness: 8.18-25mm
*Length: 3-18 meters

Welded pipe pile
Welded pipe pile including ERW (electric resistance welded), flash welded, fusion-welded, or sub-merged welded SSAW or LSAW. Longitudinal or helical spiral welded.

Pipe piling Prospective and Applications
Nowadays pipe piling is developed to a direction with deep distance and big diameters usage, because the constructions, buildings, bridges now is getting higher even super higher. In the United States or Japan, steel pipe pile length has reached 100 meters, diameters reach 2,500 mm. And in China even more.