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ASTM A252 Grade 3 LSAW Steel Pipe | 508-1422mm Foundation Piling
Product Overview
LSAW steel pipes offer excellent strength, durability, and welding reliability thanks to the advanced longitudinal submerged arc welding process. Compared with traditional welded pipes, LSAW pipes provide higher weld quality, better toughness, and stable performance under high-pressure and heavy-load conditions. Designed for large diameter pipeline applications, these pipes are widely used for transporting oil, gas, water, and other fluids over long distances. The longitudinal welded structure helps reduce pipeline connection points, lowering the risk of leakage and improving overall safety and service life. With superior mechanical properties and reliable performance, large diameter LSAW steel pipes are an ideal solution for energy pipelines, infrastructure projects, construction engineering, and other demanding industrial applications.
Product Specifications
| Material Standard | ASTM A252 Grade 1, Grade 2, Grade 3 |
| Yield Strength | ≥207 MPa |
| Dimensions / Size | Outer Diameter: 219 mm – 3000 mm (customizable) |
| Wall Thickness | 6 mm – 40 mm (customizable) |
| Length | Stock for 6 m & 12 m; Customized Length Available |
| Pipe Type / Welding | LSAW (Longitudinal SAW / EFW) |
| Dimensional Tolerance | Conforms to ASTM A252 |
| Quality Certification | ISO 9001; SGS / BV Third-Party Inspection Report Available |
| Surface Finish | Black, Hot-Dip Galvanized, Painted, or Custom Coating |
| Applications | Building foundations, bridges, ports, marine & offshore wind farms, heavy civil engineering projects |
Technical Data
ASTM A252 Steel Pipe Chemical Composition
| Element | Content (%) |
| Carbon (C) | 0.26 max |
| Manganese (Mn) | 0.85 – 1.60 |
| Phosphorus (P) | 0.04 max |
| Sulfur (S) | 0.05 max |
| Silicon (Si) | 0.10 – 0.35 |
| Copper (Cu) | 0.20 – 0.30 (optional for corrosion resistance) |
ASTM A252 Steel Pipe Mechanical Property
| Property | Requirement / Value |
| Yield Strength (Min) | 207 MPa (30 ksi) |
| Tensile Strength | 345 – 455 MPa (50-66 ksi) |
| Elongation (in 200 mm) | ≥20 % |
| Impact Test (Charpy V-Notch) | Not mandatory for all sizes; optional for low-temperature or offshore projects |
| Hardness | Typical Brinell: 110–180 HB |
| Property | Grade 1 | Grade 2 | Grade 3 |
| Minimum Yield Strength | 30,000 psi (207 MPa) | 35,000 psi (241 MPa) | 45,000 psi (310 MPa) |
| Minimum Tensile Strength | 50,000 psi (345 MPa) | 60,000 psi (415 MPa) | 66,000 psi (455 MPa) |
| Minimum Elongation (2-inch gauge) | 0.18 | 0.14 | 0.2 |
ASTM A252 Pipe Sizes
| Common Export Specifications (Grade 3 Most Popular) | |||||
| NPS | OD (mm) | Wall Thickness | Weight (kg/m) | Typical Schedule | Primary Application |
| 16" | 406.4 | 0.375" (9.52mm) | 92.5 | STD | Port terminals, general construction |
| 16" | 406.4 | 0.500" (12.70mm) | 121.8 | 40 | Offshore wind foundations, bridge piers |
| 18" | 457 | 0.500" (12.70mm) | 137.4 | 40 | Heavy industrial structures, deep foundations |
| 24" | 609.6 | 0.500" (12.70mm) | 183.2 | 40 | Large diameter piles, marine structures |
| 24" | 609.6 | 0.750" (19.05mm) | 271.8 | XS | Ultra-heavy load applications, rock driving |
| 30" | 762 | 0.625" (15.88mm) | 287.5 | 40 | Offshore platforms, LNG terminal foundations |
| 36" | 914.4 | 0.750" (19.05mm) | 392.3 | 40 | Mega-projects, cross-sea bridges |
| Manufacturing Process vs. Size Capabilities | |||||
| Process | Max OD (mm) | Max WT (mm) | Length Range (m) | Cost Efficiency | Best For |
| SSAW (Spiral) | 3200 | 30 | 46191 | Highest | Large diameter, medium wall thickness (16"-48") |
| LSAW (JCOE) | 1422 | 50 | 46188 | High | Ultra-thick wall (≥1.0"), high strength requirements |
| ERW | 660 | 25 | 46185 | Medium | Small to medium diameter, standard wall thickness |
Application Scenarios
ASTM A252 LSAW / EFW steel pipe piles are widely used in deep foundation systems and large-scale infrastructure projects where high load capacity, structural stability, and long service life are required. With excellent strength and durability, these steel pipe piles provide reliable foundation support for buildings, bridges, marine structures, and offshore engineering projects.
1.Building and Deep Foundation Systems
Steel pipe piles are commonly used as deep foundation piles for high-rise buildings, industrial factories, logistics warehouses, commercial complexes, and residential construction projects. They deliver strong vertical load-bearing performance and help improve foundation stability in soft soil, weak ground conditions, and complex geological environments.
2.Bridge and Transportation Infrastructure
ASTM A252 steel pipe piles are widely applied in highway bridges, railway bridges, elevated roads, and overpass construction. Their excellent resistance to dynamic loads, vibration, and soil movement makes them an ideal choice for river-crossing, lake-crossing, and marine bridge foundation projects.
3.Port, Marine, and Offshore Construction
Designed for demanding marine environments, LSAW steel pipe piles are used in port terminals, container yards, shipyards, dock platforms, and offshore loading facilities. Their high structural strength and corrosion resistance enable them to support heavy cranes, cargo handling equipment, and large-scale marine infrastructure.
4.Offshore Wind Power and Coastal Engineering
Steel pipe piles play an important role in offshore wind turbine foundations, offshore platforms, marine pipelines, seawalls, and coastal protection structures. They provide reliable performance against wave impact, tidal forces, and seawater corrosion, ensuring long-term stability in harsh offshore conditions.
5.Large Infrastructure and Civil Engineering Projects
These foundation piles are also suitable for dams, underground metro stations, tunnels, retaining walls, and other large-scale civil engineering projects. ASTM A252 LSAW / EFW steel pipe piles offer strong load-bearing capacity and structural reliability for projects involving heavy equipment loads and complex stress conditions.
Why Choose Us
At Fuyuansheng, we understand that steel pipe supply is not only about products, but also about ensuring the success of your projects. From standard orders to customized requirements, we focus on providing reliable solutions that help customers reduce risks, save time, and improve project efficiency.
With a 20,000㎡ production base and a professional team of 120 experienced specialists, including 35 technical engineers, we are able to provide stable manufacturing capabilities, strict quality control, and technical support for large-scale infrastructure projects.
Located only 45 km from the seaport, our factory provides convenient transportation advantages, helping shorten delivery time and reduce logistics costs for global customers.
We don’t compete through low prices alone. We believe that consistent quality, reliable delivery, and professional service are the key factors that create long-term value for every customer.
FAQs
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Q1: What are ASTM A252 Grade 3 steel pipe piles used for?
A1:ASTM A252 Grade 3 steel pipe piles are mainly used for deep foundation systems in construction projects, including high-rise buildings, bridges, ports, offshore platforms, and industrial infrastructure. With excellent load-bearing capacity and structural strength, they provide reliable support in soft soil and heavy-load foundation applications. -
Q2: Why is ASTM A252 Grade 3 steel pipe pile suitable for heavy foundation and marine projects?
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Q3: What sizes and coatings are available for ASTM A252 LSAW steel pipe piles?
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