A252 GR3 is a high-strength steel pipe pile that can be used for foundation engineering of special projects or important structures such as large buildings and bridges with extremely high strength requirements.
A252 GR3 steel pipe piles can be manufactured using either welding or seamless methods. Welded steel pipe piles have relatively lower costs and higher production efficiency, meeting the economic requirements of most foundation projects. Their manufacturing process involves multiple stages, including steel plate rolling, welding, and heat treatment, each requiring strict quality control. Seamless steel pipe piles, on the other hand, offer higher strength and better durability, making them advantageous in projects with high requirements for pipeline quality and performance. Their manufacturing process is more complex, involving multiple steps such as piercing, rolling, and drawing.
astm a252 grade 3 pipe dimensions
| Wall | Sizes ( O.D.) |
|---|---|
| .010 | 1/16" , 1/8" , 3/16" |
| .020 | 1/16" , 1/8" , 3/16" , 1/4" , 5/16" , 3/8" |
| .012 | 1/8" |
| .016 | 1/8" , 3/16" |
| .028 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 3/4" , 1" , 1 1/2" , 2" |
| .035 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 7/16" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
| .049 | 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/8" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
| .065 | 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 3/4" , 2" , 2 1/2" , 3" |
| .083 | 1/4" , 3/8" , 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 7/8" , 2" , 2 1/2" ,3" |
| .095 | 1/2" , 5/8" , 1" , 1 1/4" , 1 1/2" , 2" |
| .109 | 1/2" , 3/4" , 1" , 1 1/4" , 1 1/2" , 2" |
| .120 | 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 2" , 2 1/4" , 2 1/2" , 3" |
| .125 | 3/4" , 1" , 1 1/4" , 1 1/2" , 2" , 3" , 3 1/4" |
| .134 | 1" |
| .250 | 3" |
| .375 | 3 1/2" |
Dimensional tolerances:
- Each pipe pile must be weighed individually. The deviation between the weight and the theoretical weight must not exceed 15% (overweight) or 5% (underweight) to ensure the pipe pile can withstand the design load.
- The deviation of the pipe pile's outer diameter from the specified outer diameter must not exceed 1% to ensure the accuracy of installation and use.
- There are also corresponding allowable deviation requirements for the pipe pile's wall thickness to ensure the overall strength and stability of the pipe pile.
astm a252 grade 3 chemical composition
| Phosphorus | |
| Seamless and ERW Welded | Max% 0.050 |
Mechanical Characteristics of A252 Grade 3 steel pipe
| Grade 1 | Grade 2 | Grade 3 | |
|---|---|---|---|
| Tensile Strength, min, psi | 50,000 | 60,000 | 66,000 |
| Yield Strength | 30,000 | 35,000 | 45,000 |
A252 GR3 test requirements
The acceptance standards and testing methods for A252 GR3 steel pipe piles include chemical composition analysis, tensile testing, and impact testing to ensure that the quality of the steel pipe piles meets the standard requirements. These testing methods can comprehensively evaluate various performance indicators of the steel pipe piles, ensuring their reliability and safety in practical applications.
