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Hunan Panjin Pipe Industry Co., Ltd. is a professional manufacturer of seamless steel pipes, committed to supplying reliable tubular solutions for energy, engineering, and industrial applications worldwide.
Structural Pipe
Structural Pipe
Structural Pipe

Structural Pipe


Brand NamePanjin Steel / OEM Accepted
Model NumberStructural Pipe / ASTM A500 / ASTM A513 / EN 10210 / EN 10219
CertificationISO 9001, ISO 14001, CE, SGS (Others optional based on customer needs)

Different Names: Structural Tube, Structural Hollow Section, SHS, RHS, HSS, Mechanical Tube

Main Uses: Construction structures, mechanical frames, support columns, machinery fabrication

Core Parameters: Round/Square/Rectangular, Grades Q235–Q345 / S235–S355, OD 20–610 mm, WT 1.5–40 mm

Description

Structural Pipe refers to high-strength seamless steel pipes designed for load-bearing and mechanical applications. Manufactured through hot rolling or hot-finishing processes, these pipes provide stable mechanical properties and uniform wall thickness.

Seamless structural pipes are widely used in frames, columns, supports, towers, bridges, steel structures, and infrastructure projects where strength and reliability are essential. Produced in accordance with ASTM, EN, and other international standards, they offer excellent resistance to bending, compression, and structural loads, ensuring long-term performance in demanding engineering environments.

Line Pipe refers to seamless steel pipes designed for the long-distance transportation of fluids across various terrains and operating conditions. Throughout the service life of a pipeline system, line pipes provide reliable strength, safety, and structural integrity.

They are commonly used for conveying oil, natural gas, water, and other fluids in energy and infrastructure projects. Manufactured to meet major international standards, seamless line pipes are capable of operating under high pressure, elevated temperatures, and corrosive environments, ensuring stable and durable pipeline performance.

Casing & Tubing refers to seamless steel pipes designed for oil and gas well drilling, completion, and production operations. These products play a critical role in maintaining wellbore integrity and ensuring safe and efficient hydrocarbon extraction.

Seamless casing and tubing are widely used to support well structures, isolate geological formations, and transport oil and gas from the reservoir to the surface. Manufactured in accordance with API and other international standards, they offer high strength, pressure resistance, and dimensional consistency, enabling reliable performance under high stress, corrosive conditions, and complex downhole environments.

Boiler Pipe refers to seamless steel pipes specifically designed for high-temperature and high-pressure service conditions. They are commonly used in boilers, heat exchangers, superheaters, and other thermal equipment where thermal stability and pressure resistance are critical.

Manufactured in accordance with international boiler and pressure vessel standards, boiler pipes offer excellent heat resistance, mechanical strength, and long-term reliability. Their seamless structure ensures stable performance in continuous operation, making them suitable for power generation, petrochemical, and industrial heating applications.

Specifications
ItemSpecification
StandardsASTM A500 / A513, EN 10210 / EN 10219, GB/T 8162
GradesASTM A500 Gr. A/B/C; S235/S275/S355; Q195/Q235/Q345
TypeSeamless / ERW / Hot finished / Cold formed
ShapesRound, Square, Rectangular
Round OD21.3 mm – 610 mm
Square Size20×20 – 500×500 mm
Rectangular Size20×30 – 400×600 mm
Wall Thickness1.5 – 40 mm
Length6 m / 12 m / Custom
SurfaceBlack, varnish, galvanized (HDG), anti-rust oil
ToleranceAs per ASTM/EN/GB standards
ApplicationsConstruction, machinery, frames, structures
Packaging & Other
Minimum Order QuantityOne container quantity
Packaging DetailsStandard export packing: bundles with steel strips, plastic caps, anti-rust oil, seaworthy wrapping(Customized packaging available)
Delivery Time10–30 days depending on order quantity & production schedule
Payment TermsT/T, L/C, Western Union, LC at sight, or Negotiable
Supply Ability30,000–60,000 tons per month
Competitive Advantage

● Full range of shapes: round, square, rectangular (SHS/RHS/HSS)

● Seamless or ERW production depending on load and design needs

● High mechanical strength with excellent welding performance

● Strict quality inspection: tensile, chemical, flattening, impact tests

● HDG/painted/coated options for enhanced corrosion resistance

● Strong monthly supply capability and fast export delivery

● Custom sizes, grades, and lengths available for engineering projects

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