ASTM A252 SSAW steel pipe piles are a category of deep foundation elements manufactured using the Spiral Submerged Arc Welding (SSAW) process and conforming to the ASTM A252 standard. They serve as permanent load-bearing members or as permanent shells for cast-in-place concrete piles in various construction projects
Products Description
| Product | ASTM A252 SSAW Steel Pipe Piles |
| Processing | SSAW (Spirally Submerged Arc Welding) |
| Standard | ASTM A252 |
| Grade | GR1, GR2, GR3 |
| Range | OD 219~3000mm, thickness 8.1~26.97mm |
| Coating | Bare, Black painting,Epoxy, FBE , 3PE , 3PP.. |
| Applications | Piling, Structure |
manufacturing process
The SSAW manufacturing involves forming hot-rolled steel coil into a cylindrical shape with a continuous helical seam, which is then welded internally and externally using the submerged arc welding process
Mechanical properties and chemical composition
Mechanical properties:
| Grade | Tensile Strength (min) | Yield Strength (min) |
|---|---|---|
| Grade 1 | 50,000 psi (345 MPa) | 30,000 psi (205 MPa) |
| Grade 2 | 60,000 psi (415 MPa) | 35,000 psi (240 MPa) |
| Grade 3 | 66,000 psi (455 MPa) | 45,000 psi (310 MPa) |
Chemical Requirement: The steel used shall contain no more than 0.050% phosphorus
OD and WT tolerance
Outside diameter (typically within ±1%),
Wall thickness(Not more than 12.5% under the specified norminal wall thickness)
Quality control
ASTM A252 SSAW steel pipe piles undergo strict quality control per Standard requirements
* Non-Destructive Testing (X-Ray, Ultrasonic)
* Chemical composition test
* Mechanical Property Testing
* Dimension & Visual Inspection
We also accept third party inspection before shipment
Features and Advantages
Structural Efficiency: The helical weld provides uniform stress distribution and enhances pressure resistance, making these pipes suitable for heavy loads.
Large Diameter Range: SSAW pipes are capable of being produced in large diameters, typically from 219 mm up to 3000 mm, accommodating diverse engineering requirements.
Material and Coating: They are made from carbon steel. To enhance durability in corrosive soil or marine environments, pipes can be supplied with protective coatings such as Fusion-Bonded Epoxy (FBE), 3-Layer Polyethylene (3LPE), or galvanized coatings.
Installation Versatility: Pipes can be used as open-ended or closed-ended (capped with a plate or rock shoe) piles. Closed-ended piles are often filled with concrete and reinforcement to form composite foundations with increased strength and stiffness
Applications
ASTM A252 SSAW steel pipe piles are extensively used in foundation engineering for:
High-rise buildings and industrial facilities on weak or compressible soil.
Bridge abutments and piers.
Port and harbor constructions, including seawalls and offshore platforms.
Underground support systems for subway stations and deep excavations
Other infrastructure projects requiring deep foundation support.
contact
Kevin
Tianjin shenzhoutong steel pipe co.,ltd
kevin@tjshenzhoutong.com
Mob/whatsapp/wechat +86 15267768016
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