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Product introduction
Thick Wall Carbon Steel Tube Product Detail Page
Product Description
Thick Wall Carbon Steel Tube is a high-strength, heavy-duty structural and fluid transmission pipe, manufactured in strict compliance with international standards (ASTM A53, API 5L, EN 10219). Adopting advanced welding technologies (ERW, LSAW) or seamless production process, it features thick wall design, excellent pressure-bearing capacity, high structural stability, and good corrosion resistance. Specifically designed for high-pressure, heavy-load, and harsh working conditions, this tube balances durability, reliability, and cost-effectiveness, widely used in industrial fluid transmission, mechanical structural support, and high-pressure engineering projects worldwide.
Basic Product Specifications
Product Name: Thick Wall Carbon Steel Tube
Executive Standard: ASTM A53, API 5L, EN 10219, GB/T 3091 (Customizable per project requirements)
Quality Level: PSL1, PSL2 (API 5L); Grade A, Grade B (ASTM A53)
Manufacturing Process: ERW (High-Frequency Electric Resistance Welding), LSAW (Longitudinal Submerged Arc Welding), Seamless (Hot Rolled / Cold Drawn)
Steel Grades Available: Q235, Q345, X42, X52, X56, A106 Gr.B (Customizable per project requirements)
Common Sizes: Outer Diameter (OD): 48.3mm - 1626mm; Wall Thickness (WT): 8mm - 60mm (Thick wall customizable up to 100mm)
Delivery Condition: As-rolled, Normalized, Annealed (Customizable per process requirements)
Standard Length: 6m / 12m (Single Random Length, Custom fixed length available)
Surface Finish: Black bare steel with temporary anti-rust oil (internal & external); Hot-dip galvanizing, FBE coating available on request
Pipe Ends: Plain Ends (PE) / 30°/45° Beveled Ends (BE) for on-site welding; Threaded ends optional
Application: High-pressure fluid transmission, mechanical structural support, industrial pipelines, construction piling
Key Grade & Process Explanation
Thick Wall Design: Wall thickness ≥8mm, with higher pressure-bearing capacity and structural rigidity than standard thin-walled tubes. Suitable for high-pressure (≥10MPa) and heavy-load scenarios, ensuring long-term stable service without deformation or leakage.
Manufacturing Processes: - ERW: Suitable for medium-diameter thick-walled tubes, high-efficiency welding, uniform weld seam, mechanical properties close to base metal. - LSAW: Suitable for large-diameter, extra-thick wall tubes, deep weld penetration, low defect rate, ideal for heavy-duty engineering. - Seamless: No weld seam, excellent pressure resistance, suitable for ultra-high pressure and harsh working conditions.
Carbon Steel Advantage: Low cost, good weldability, high toughness, and easy processing. Optimized chemical composition (low sulfur, low phosphorus) reduces corrosion and cracking risk, adapting to complex industrial environments.
Dimensional Tolerance (Standard Requirements)
|
Item |
Standard Tolerance |
|
Outer Diameter (OD) |
±1.0% of nominal OD (minimum absolute tolerance ±0.5mm) |
|
Wall Thickness (WT) |
-10% ~ +15% of nominal thickness (thick wall special control) |
|
Out-of-Roundness |
≤1.5% of nominal outer diameter |
|
Straightness |
≤3.2 mm per meter length |
|
Standard Length |
+500 mm, -0 mm (Single Random Length) |
Mechanical Properties (Typical Values for X52 Grade, Thick Wall)
|
Mechanical Property |
Standard Requirement |
|
Minimum Yield Strength ($$R_{eH}$$) |
≥360 MPa (52 ksi) |
|
Tensile Strength ($$R_m$$) |
460 – 670 MPa (66.7 – 97.2 ksi) |
|
Elongation at Break (A) |
≥21% |
|
Flattening Test |
Qualified, no cracks or defects after testing (thick wall special test standard) |
|
Hydrostatic Test |
100% pressure test (pressure & holding time per standard), no leakage or deformation |
|
Weldability |
Excellent, suitable for SMAW, GMAW, SAW and other on-site welding processes |
Note: Mechanical properties can be adjusted according to different steel grades (Q235/Q345/X42/X56) and wall thickness to meet project requirements.
Chemical Composition (Heat Analysis, Max. %, Carbon Steel)
|
Element |
C (Carbon) |
Mn (Manganese) |
P (Phosphorus) |
S (Sulfur) |
Si (Silicon) |
|
Limit |
≤0.24 (X52) / ≤0.30 (A106 Gr.B) |
≤1.40 (X52) / ≤1.60 (Q345) |
≤0.035 |
≤0.040 |
≤0.45 |
Residual elements: Cu ≤0.50%, Ni ≤0.30%, Cr ≤0.30%, Mo ≤0.15% (max. %); Customizable for special requirements.
Manufacturing Process (ERW / LSAW / Seamless)
Raw Material Selection: High-quality carbon steel coils/plates/billets complying with international standards, strictly inspected for chemical composition and mechanical properties to ensure suitability for thick wall tube production.
Forming Process: - ERW/LSAW: Steel coils/plates are cold/hot formed into cylindrical shape with precise dimensional control, ensuring uniform wall thickness and roundness. - Seamless: Steel billets are heated and pierced, then rolled to form seamless thick wall tubes.
Welding (ERW/LSAW): High-frequency electric resistance welding (ERW) or submerged arc welding (LSAW) is used to achieve full-penetration longitudinal welding. The weld seam is heated and normalized to eliminate internal stress and ensure weld quality.
Sizing & Straightening: Precision sizing to meet standard dimensional tolerances; straightening to ensure straightness ≤3.2 mm/m, facilitating on-site installation and secondary processing.
Non-Destructive Testing (NDT): 100% Ultrasonic Testing (UT) of weld seams (ERW/LSAW) or tube body (seamless); RT/MT/PT testing available on request to detect internal cracks, inclusions and other defects.
Heat Treatment (Optional): Normalization or annealing to improve mechanical properties, reduce internal stress, and enhance toughness of thick wall tubes.
Finishing: Internal and external anti-rust oil coating, end finishing (plain or beveled), and marking to complete the production process; custom coating available.
Product Advantages
High Pressure-Bearing Capacity: Thick wall design (≥8mm) provides excellent pressure resistance, suitable for high-pressure fluid transmission and heavy-load structural applications.
Stable Structural Performance: High rigidity, good toughness, no deformation under heavy load, ensuring long-term stable service in harsh environments.
Multiple Manufacturing Processes: ERW, LSAW, seamless options to meet different diameter, wall thickness and project requirements.
Good Weldability & Machinability: Easy for on-site welding, cutting, drilling and secondary fabrication, adapting to various engineering scenarios.
Cost-Effective: Carbon steel material balances performance and cost, ideal for large-scale industrial and construction projects.
Standard Compliance: Fully compliant with ASTM A53, API 5L, EN 10219 standards, recognized by global engineering projects.
Full Traceability: Complete heat number and batch records, with Mill Test Report (MTR) provided for each order, ensuring quality traceability.
Main Applications
Specialized for high-pressure, heavy-load and harsh working conditions, widely used in:
High-pressure oil, gas, water and industrial fluid transmission pipelines.
Mechanical structural support: machinery bases, crane booms, steel frames.
Construction engineering: piling pipes, bridge supports, high-rise building columns.
Petrochemical, power plant and refinery process pipelines.
Marine and offshore auxiliary pipelines (anti-corrosion treated).
General industrial heavy-duty fluid conveying and structural projects.
Quality Inspection & Certification
Dimensional Inspection: Full inspection of outer diameter, wall thickness, length, straightness and out-of-roundness to meet standard tolerance requirements, especially strict control for thick wall.
Mechanical Property Testing: Tensile test, flattening test, bend test to verify yield strength, tensile strength and ductility; impact test available on request.
Hydrostatic Test: 100% pressure test at specified pressure and holding time, ensuring no leakage or permanent deformation.
Non-Destructive Testing (NDT): 100% Ultrasonic Testing (UT) for weld seams (ERW/LSAW) or tube body (seamless); RT/MT/PT testing available on request.
Chemical Analysis: Heat analysis to confirm chemical composition meets standard and project requirements.
Certification: Mill Test Report (MTR) provided for each order, with full heat number traceability; third-party inspection (SGS, BV) available on request.
Packaging & Delivery
Packaging: Bundled with heavy-duty steel strips, wrapped with waterproof woven cloth to prevent rust and damage during transportation; end caps installed to protect pipe ends; custom packaging available for bulk and extra-thick wall orders.
Marking: Each tube is clearly marked with standard, grade, size (OD×WT), heat number, batch number, length, manufacturing date and "Thick Wall Carbon Steel Tube" identification.
Trade Terms: FOB, CIF, CFR, DAP, DDU all available, supporting various international trade cooperation methods.
Shipping Ports: Major Chinese coastal ports (Qingdao, Tianjin, Shanghai, Ningbo), ensuring efficient and convenient global transportation.
Customization: Accept customized steel grades, sizes, wall thickness, lengths, pipe ends (beveled/threaded), and anti-corrosion coating to meet specific project requirements.
Contact Us
For quotation, stock availability, delivery lead time, and customized services of Thick Wall Carbon Steel Tube, please contact our sales team. We provide professional thick wall pipeline solutions with standard-certified quality, supporting your global high-pressure, heavy-duty engineering projects.
About us
Hebei Huayang Steel Pipe Co., Ltd. was founded in 2005, with a registered capital of 500 million yuan. The company covers an area of more than 1,000 mu, with annual sales of 10 billion yuan, more than 600 employees and an annual productivity of 2.75 million tons. The company has 17 new automatic steel pipe production lines and 14 high-frequency production lines, with a diameter of 73-660 mm; Three double-sided submerged arc welded steel pipe production lines with diameters of 406.4-1422.4mm;; 24 hot tube expanding production lines, with a diameter of 230-820mm; Two anticorrosion steel pipe production lines with a diameter of 73-1626 mm; 2 automatic painting production lines. With 3 branches and 5 offices, the products are sold to various cities and exported to more than 80 countries such as Southeast Asia, Middle East, Europe and America.
Packaging, transportation and delivery
Packaging, transportation and delivery
At Hebei Huayang Steel Pipe Co., Ltd., we apply standardized and reliable packaging solutions for all our steel pipe products. Our pipes can be securely packed by hexagonal bundling or circular bundling according to product diameter, wall thickness and customer requirements. Each pipe end is protected with high‑strength plastic pipe caps to avoid collision damage, dust and moisture during transportation and storage. The whole bundle is firmly wrapped with durable woven bags to enhance stability and prevent scratches or deformation.
We support a complete range of transportation methods to satisfy global customers, including road transportation, railway transportation, sea freight and container shipping. Based on our strategic location in Cangzhou, Hebei Province, we enjoy convenient access to major ports such as Tianjin Port, which greatly improves logistics efficiency and reduces transportation costs.
For standard specifications and normal order quantities, the general delivery time is about 30 days after order confirmation and deposit receipt. For large‑scale orders, special sizes or customized processing requirements, our production and sales team will formulate a detailed production plan and provide an accurate delivery schedule accordingly to ensure on‑time supply and stable performance for projects and clients worldwide.
Strict quality control
1. During and after the production, experienced quality inspectors randomly check the products to ensure that each steel pipe is qualified for production and application.
2. A nationally recognized laboratory with CNAS certification and certification by French Classification Society.
3. Have CNOOC access certificate, KOC oil company access network, ADNOC Abu Dhabi oil company access network, Petrobras access network, etc.
4. Accept the inspection by the third party designated/paid by the buyer, such as SGS and BV.
Certifications
API 2B
API 5L
GOST
ISO 9001
EN 10219
EN 10210
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