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The length specs for ASTM A252 pipes are as follows
As for its mechanical properties, under ASTM A52 Specs, the maximum phosphorus content in piling pipes should not exceed 0.50%. This limit is necessary because this substance can make the steel brittle while adversely affecting the steel's welding capabilities. The other elements used in a pile should be administered according to the general requirements of carbon steel pipes.
According to these standards, all pipes should have a standard plain end unless otherwise specified. Steel pipe piles should either possess machine-cut or flame-cut ends. Manufacturers must also remove the burrs at the ends of these pipes.
In cases where beveled edges are permissible, certain specifications must be maintained. According to ASTM A252 standards, all beveled-ended pipe piles must have an angle of 30 degrees +5, -0 degrees. These edges must be obtained by drawing a perpendicular line from the axis of the pipe pile.
Grade | Yield Point | Min. Elongation at 2° | Tensile Strength | Min. Elongation at 8° |
3 | 45000 psi | 20% | 66000 psi | … |
Nominal Wall Thickness in Inches | Minimum Elongation % in 2 Inches for ASTM A252 Grade 3 |
5/16 or 0.312 inch | 20.00 |
9/32 or 0.281 inch | 19.00 |
¼ or 0.250 inch | 18.00 |
7/32 or 0.219 inch | 17.00 |
3/16 or 0.188 inch | 16.00 |
11/64 or 0.172 inch | 16.00 |
5/32 or 0.156 inch | 15.00 |
9/64 or 0.141 inch | 14.00 |
1/8 or 0.125 inch | 14.00 |
7/64 or 0.109 inch | 13.50 |