Products Description
Full Name: ASTM A252 Grade 3 Spiral Submerged Arc Welded (SSAW) Carbon Steel Pipe Pile
Core Standard: ASTM A252-(2018) Standard Specification for Welded & Seamless Steel Pipe Piles
Core Feature: Grade 3 is the highest strength grade of A252 series, designed for heavy-load foundation piling, large-diameter fluid transmission and marine infrastructure projects. Manufactured via helical submerged arc welding, with stable weld seam, excellent bearing capacity and outstanding cost performance for large-size pipelines
| Item | Available Range | Custom Options |
|---|---|---|
| Outer Diameter (OD) | 219.1mm – 3040mm (8" – 120") | Custom ultra-large diameter up to 4064mm |
| Wall Thickness (WT) | 4mm – 30mm | SCH10 / SCH40 / STD / XS / SCH80 custom wall |
| Standard Length | 6m / 12m | 5.8–35m random length, fixed cut length as client drawing |
| Pipe End Treatment | Plain End / Beveled End | Threaded, socket, flanged, plastic end cap protection |
Surface Anti-Corrosion Coating Options
- Black Varnish / Black Oil (standard bare pipe protection)
- 3LPE / 2PE Polyethylene Coating (buried pipeline anti-corrosion)
- FBE Fusion Bonded Epoxy Coating
- Coal Tar Epoxy Coating (marine & sewage anti-corrosion)
- Zinc-rich Primer, Hot-dip Galvanized
Packaging Method: Small diameter pipes bundled by steel strips with plastic end caps; large-diameter loose loading; waterproof plastic film wrapping for coated pipes to avoid scratch during transport
Shipping Term: FOB Tianjin Port / CFR / CIF global main ports
Loading : 20GP / 40GP / 40HQ container, bulk cargo ship for super large-diameter pipes
| Element | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) |
|---|---|---|---|---|---|
| A252 GR3 | 0.18 | 0.50 | 1.50 | 0.050 | 0.045 |
| Mechanical Index | Unit | ASTM A252 Grade 3 | Grade 2 Reference | Grade 1 Reference |
|---|---|---|---|---|
| Yield Strength | psi / MPa | 45,000 / 310 | 35,000 / 240 | 30,000 / 205 |
| Tensile Strength | psi / MPa | 66,000 / 455 | 60,000 / 415 | 50,000 / 345 |
| Elongation | % | ≥20 | ≥20 | ≥20 |
Charpy V-notch impact test available for cold-region projects, impact energy ≥34J at -20℃
Main Application Fields
1. Foundation & Construction Piling (Primary Application)
Deep foundation pipe piles for high-rise buildings, commercial complex
Bridge pier load-bearing pipe piles, highway viaduct foundation
Offshore wind turbine foundation, port & dock marine piling, cofferdam retaining wall
2 .Municipal Low-Pressure Fluid Transportation
Urban large-diameter raw water, tap water transmission trunk line
Municipal sewage, rainwater drainage pipeline network
City central heating circulating pipeline
3. Energy & Petrochemical Industry
Low-pressure crude oil, natural gas gathering & transmission pipeline
Oilfield well casing, medium-pressure industrial fluid delivery
4. Other Structural & Engineering Uses
Large steel structure support columns, underground tunnel lining casing
Agricultural irrigation main pipeline, landscape large-caliber water supply
FAQ
Q1: What is the difference between A252 Grade 1 / Grade 2 / Grade 3?
A: The core difference lies in mechanical strength:
Grade1: Lowest yield strength, only for light-load temporary piling
Grade2: Medium strength, general municipal water pipeline & common building foundation
Grade3: Highest strength, priority choice for marine, bridge, high-rise heavy-load piling and long-distance pressure fluid transmissionAlibaba.co...
Q2: Can A252 GR3 spiral pipe be used for buried underground pipelines?
A: Yes. We provide 3LPE, FBE anti-corrosion coating treatment for buried usage, which effectively isolate soil corrosion, extend pipeline service life over 50 years. Bare black varnish pipes are only suitable for temporary above-ground projects.
Q3: What test reports can you provide for customs & project tender?
A: We supply full set documents: EN 10204 3.1B material test certificate (chemical & mechanical test data), factory inspection report, hydrostatic & UT non-destructive test record, commercial invoice, packing list, certificate of origin.
Q4: What is the minimum order quantity (MOQ)?
A: MOQ is 2 metric tons; full container load (20GP / 40HQ) is recommended for better unit FOB price, we support mixed-size loading in one container.
Q5: Can we customize pipe length, wall thickness and end processing according to construction drawings?
A: 100% support OEM & ODM customization. We can produce non-standard OD/WT, fixed cutting length, customized bevel angle, flanged ends as clients' engineering drawings.
Q6: Is A252 GR3 equivalent to other international steel grades?
A: Equivalent alternative grades for reference:
EN standard: S355J2H (EN 10219)
Chinese standard: Q345B (GB/T 1591)
API standard: API 5L X52 / X56
ASTM alternative: ASTM A572 Gr60, ASTM A500 GrCkn.botopst...
Q7: What is your delivery time?
A: Stock standard size (6m/12m OD219-1220mm): 7–10 working days; customized non-standard size & anti-corrosion coating processing: 15–25 working days after receiving deposit.
Our address
Rm1406,14th/F No 208, Hongqi Road, Nankai Dist, Tianjin City ,China
Phone Number ( whatsApp/Wechat))
+8616622033809
alisa@tjshenzhoutong.com
Hot Tags: astm a252 grade 3 ssaw spiral welded steel pipe steel piling tube, China astm a252 grade 3 ssaw spiral welded steel pipe steel piling tube manufacturers, suppliers, factory, buy spiral pipe, fireproof spiral pipe, insulated spiral pipe, Spiral Welded Line Pipe, standard spiral pipe, straight spiral pipe
