Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of erw carbon steel pipe dn300 astm a53 gr.b for fluid conveying in China. Welcome to buy discount erw carbon steel pipe dn300 astm a53 gr.b for fluid conveying made in China here from our factory. Quality products and low price are available.
Product introduction
Product Overview
This DN300 ERW Carbon Steel Pipe is manufactured strictly in accordance with ASTM A53 Grade B standard, adopting advanced Electric Resistance Welded (ERW) forming technology. It is specially designed for medium‑low pressure fluid conveying projects, featuring stable mechanical performance, excellent weld integrity, high dimensional accuracy and outstanding pressure resistance. Widely used in water supply, gas, oil, industrial liquid and other fluid transmission fields, it is a cost‑effective and reliable welded steel pipe for global industrial and municipal pipeline systems.
Basic Specification Parameters
|
Item |
Details |
|
Product Name |
ERW Carbon Steel Pipe DN300 ASTM A53 GR.B For Fluid Conveying |
|
Standard |
ASTM A53 / ASME B36.10M |
|
Steel Grade |
ASTM A53 Grade B |
|
Manufacturing Process |
ERW (Electric Resistance Welded) |
|
Nominal Diameter |
DN300 (NPS12, OD 323.9mm) |
|
Wall Thickness |
SCH40/SCH80 (customizable) |
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Length |
6m / 12m, Single Random Length, Double Random Length or customized |
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Pipe End |
Plain End (PE), Beveled End (BE), Threaded End |
|
Surface Treatment |
Black Oiled, Anti‑rust Paint, Hot‑dip Galvanized, 3LPE Coating |
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Tolerance |
OD: ±1%, Wall Thickness: ±12.5% |
|
Testing |
Hydrostatic Test, Flattening Test, Tensile Test, NDT Non‑destructive Inspection |
Chemical & Mechanical Properties
Chemical Composition (ASTM A53 GR.B, wt%)
C ≤0.30%, Mn: 0.29‑1.06%, P ≤0.035%, S ≤0.035%, Si ≥0.10%
Mechanical Performance
Tensile Strength ≥415MPa (60,000 psi)
Yield Strength ≥240MPa (35,000 psi)
Elongation ≥21%
Excellent weldability, formability and low‑temperature toughness
Production Process & Quality Control
Raw material inspection: Strict screening of high‑quality carbon steel coils, chemical composition and mechanical performance tested to meet ASTM A53 standard.
Cold forming: Continuous roll forming, precise shaping into cylindrical tube blank.
ERW high‑frequency welding: Longitudinal electric resistance welding, full‑automatic weld seam monitoring to ensure weld quality without defects.
Heat treatment: Stress relief annealing to eliminate welding residual stress, improve pipe toughness.
Precision sizing & straightening: Ensure outer diameter, wall thickness and straightness meet tolerance requirements.
Non‑destructive testing: Eddy current, ultrasonic inspection for weld seam quality; hydrostatic pressure test for air tightness and pressure resistance.
Surface treatment & marking: Anti‑rust oiling/painting, laser marking of standard, specification, heat number and batch number.
Product Advantages
High Weld Integrity: Advanced HFI‑ERW technology, uniform weld seam, no crack or porosity, stable long‑term operation.
Strong Pressure Resistance: Grade B higher strength than Grade A, suitable for medium‑pressure fluid transmission, safe and reliable.
High Dimensional Accuracy: Precise OD & wall thickness control, convenient for on‑site installation and connection.
Good Corrosion Resistance: Base carbon steel with customizable anti‑corrosion coating, adapt to water, weak acid‑base liquid and conventional industrial environments.
Cost‑Effective: ERW welded pipe has higher production efficiency and lower cost than seamless pipe, suitable for large‑scale fluid pipeline projects.
Wide Compatibility: Complies with international ASTM standard, matches global pipeline fittings, suitable for overseas EPC and engineering projects.
Application Scenarios
Municipal Engineering: Urban water supply, drainage, fire protection pipeline, heating and cooling fluid transmission.
Energy Industry: Oil, natural gas, compressed air medium‑low pressure conveying pipelines.
Chemical Industry: Conveying of conventional industrial liquid, process medium pipelines.
Construction & Infrastructure: Factory fluid circulation system, bridge and building auxiliary pipeline system.
Overseas Projects: Middle East, Southeast Asia, Africa and other international fluid transmission engineering supporting pipelines.
Packaging & Delivery
Packaging: Bundled with steel strips, waterproof plastic film wrapped, port‑shipping standard packaging.
Delivery Time: 7‑15 working days for conventional specifications; customized specifications negotiated separately.
MOQ: 5 tons, support bulk order and small batch trial order.
Transportation: Sea freight, land freight, container bulk cargo delivery.
After‑sales Service
1‑year quality warranty for production defects.
Provide full set of inspection certificates: MTC mill test certificate, third‑party inspection report (SGS/BV), NDT report, hydrostatic test report.
Support customized size, wall thickness, surface treatment and end processing according to project requirements.
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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