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Other Structural Pipes

Other Structural Pipes

High-strength Pipes For Construction And Industrial Frameworks

Other structural pipes provide high strength and versatility for construction, infrastructure, and industrial frameworks, ensuring durability and cost-efficiency.

Other Structural Pipes

High-strength Pipes For Construction And Industrial Frameworks

Other structural pipes provide high strength and versatility for construction, infrastructure, and industrial frameworks, ensuring durability and cost-efficiency.

Other Structural Pipes are robust steel pipes designed for use in construction, infrastructure, and industrial applications, providing exceptional strength and durability. These structural steel pipes are engineered to support heavy loads, resist environmental stresses, and ensure long-term reliability in projects like buildings, bridges, towers, and scaffolding. Conforming to standards such as ASTM A500, ASTM A53, and EN 10219, they are ideal for structural frameworks, piling, and other load-bearing applications.

Manufactured through seamless or welded processes, carbon steel structural tubes are typically made from carbon steel (e.g., AISI 1020, A36) or low-alloy steel, offering high tensile strength and versatility. Available in sizes from 1/2” to 48” (DN15–DN1200) with wall thicknesses from SCH 10 to SCH XXS, these pipes can be customized with coatings like zinc galvanizing or epoxy to enhance corrosion resistance. Their robust construction ensures resistance to mechanical stress, making them suitable for dynamic loads in construction and industrial settings.

Welded structural pipes undergo rigorous testing, including tensile, bending, and hydrostatic tests, to ensure compliance with industry standards. With tensile strengths ranging from 400 MPa (A36) to 550 MPa (A500 Grade C), they provide excellent load-bearing capacity. Surface treatments such as galvanizing or black oxide coating protect against rust and environmental degradation, extending service life in harsh conditions. These pipes are available in round, square, or rectangular profiles to meet diverse project requirements.

Compared to other piping types, Other Structural Pipes offer a cost-effective solution for structural applications due to their high strength-to-weight ratio and ease of fabrication. They can be welded, bolted, or cut to fit specific designs, making them versatile for construction projects like stadiums, warehouses, and marine structures. Their ability to withstand seismic loads and wind forces makes them a preferred choice for infrastructure in challenging environments.

By addressing challenges like structural instability, corrosion, and high costs, high-strength structural tubes provide reliable solutions for engineers and builders. Whether used in high-rise buildings, bridges, or industrial frameworks, these pipes deliver unmatched performance, safety, and longevity, making them essential for modern construction and infrastructure projects.

What is structural steel pipe?

Structural Steel

What is Structural Steel Pipe?

Structural steel pipes are robust steel tubes engineered to meet strict standards for strength and durability, ideal for construction applications like building frameworks and supporting heavy machinery.

These pipes, often seamless or welded, adhere to standards like ASTM A500 or A53, ensuring optimal chemical composition and mechanical properties for diverse structural uses.

Manufactured via hot rolling (seamless) or electric resistance welding (ERW), they offer high tensile strength, corrosion resistance with coatings, and undergo rigorous quality control for reliability.

Quality control for structural steel pipes

Quality Control

For Structural Steel Pipes

Quality control ensures structural steel pipes meet rigorous standards for reliability, using advanced testing to detect defects and verify performance under stress.

Rigorous non-destructive testing (NDT) methods, like ultrasonic testing, radiographic testing, and magnetic particle inspection, identify internal and surface flaws without compromising pipe integrity.

Hydrostatic and pressure testing confirm the pipes’ ability to withstand operational stresses, ensuring safety and durability in construction applications.

ASTM standards for Structural tubing
Abbr. Corresponding Application
A500 ASTM A500 / A500M Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
A501 ASTM A501 / A501M Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing
A847 ASTM A847 / A847M Specification for Cold-Formed Welded and Seamless High Strength, Low Alloy Structural Tubing with Improved Atmospheric Corrosion Resistance
A618 ASTM A618 / A618M Specification for Hot-Formed Welded and Seamless High-Strength Low-Alloy Structural Tubing
Specifications of Pipes for Various Applications
Usage OD(mm) WT(mm) Steel Grade Standard/ Specification Application Fields
Structural Pipe 42-760 4-120 20#, 35#, 45#, Q345A/B/C/D, Q390, Q420, 25Mn, 27SiMn etc. GB/T 8162 General structural and mechanical pipe
Vehicle Pipe 45-245 4-35 20Mn2, SAE1527, MZ410R, MZ530R, 30Mn2, 40Cr, 45Mn2 etc. Technical agreement, YB/T5035 Pipe used for automobile axle and automobile semi-shaft
Mold Pipe & Tube DN200-DN1200 - 21CrMo10, 21CrMo10-2 etc. Q/OHAD030, technical agreement Centrifugal graphite casting-iron pipe mold
Military Pipe 42-760 4-120 30Cr, 40Cr, 35CrNi1MoA etc. National military standard, agreement Pipe for military use
Geology Drilling Pipe & Tube 42-133 - DZ40, DZ55, STM-R780, DZ60 etc. Q/OHAD006, GB/T 9808, agreement Drilling pipe
Hydraulic Support Pipe 42-760 4-120 20#, 35#, 45#, 27SiMn, 30MnNbRE, 30CrMnSi, 30CrMnSiA etc. GB/T 17396, technical agreement Making hydraulic equipment for coal mine exploitation and hydraulic cylinder and piston for truck crane
Fluid Transmission Pipe & Tube 42-760 4-120 20#, Q345, Q390 etc. GB/T 8163, technical agreement Pipe & tube used for fluid transmission

Note: Steel pipe can be developed and produced to meet the users’ personalized requirements according to their demands.

6 Structural Applications of Pipes

Steel pipes come in a wide variety of sizes and grades, making them highly versatile. Here are key structural applications that highlight their adaptability and strength.

Concrete Piling Casing

The construction industry prioritizes safety and durability, especially for heavy-load structures. Steel pipe casings enhance soil friction and stability for concrete pile foundations.

Pipe Casing

Steel pipe casings protect utility lines—including water, gas, electrical, and fiber optics—from natural and human-induced damage, ensuring infrastructure integrity.

Scaffolding

Steel pipes joined with fittings create strong, fire-resistant scaffolding that supports workers and equipment safely during construction or maintenance.

Steel Pole & Signage

Used as poles for electrical lines, traffic signs, and street lighting—they offer long-term weather resistance and structural reliability.

Fencing

Steel pipe fencing enhances safety and impact resistance—used in pedestrian walkways, livestock enclosures, and residential security barriers.

Handrails

Commonly used in malls, buildings, and industrial facilities—pipe handrails support stairs, ramps, and fall protection systems with high strength and durability.

What is structural steel pipe?

Structural Steel

What is Structural Steel Pipe?

Structural steel pipes are robust steel tubes engineered to meet strict standards for strength and durability, ideal for construction applications like building frameworks and supporting heavy machinery.

These pipes, often seamless or welded, adhere to standards like ASTM A500 or A53, ensuring optimal chemical composition and mechanical properties for diverse structural uses.

Manufactured via hot rolling (seamless) or electric resistance welding (ERW), they offer high tensile strength, corrosion resistance with coatings, and undergo rigorous quality control for reliability.

Quality control for structural steel pipes

Quality Control

For Structural Steel Pipes

Quality control ensures structural steel pipes meet rigorous standards for reliability, using advanced testing to detect defects and verify performance under stress.

Rigorous non-destructive testing (NDT) methods, like ultrasonic testing, radiographic testing, and magnetic particle inspection, identify internal and surface flaws without compromising pipe integrity.

Hydrostatic and pressure testing confirm the pipes’ ability to withstand operational stresses, ensuring safety and durability in construction applications.

ASTM standards for Structural tubing
Abbr. Corresponding Application
A500 ASTM A500 / A500M Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
A501 ASTM A501 / A501M Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing
A847 ASTM A847 / A847M Specification for Cold-Formed Welded and Seamless High Strength, Low Alloy Structural Tubing with Improved Atmospheric Corrosion Resistance
A618 ASTM A618 / A618M Specification for Hot-Formed Welded and Seamless High-Strength Low-Alloy Structural Tubing
Specifications of Pipes for Various Applications
Usage OD(mm) WT(mm) Steel Grade Standard/ Specification Application Fields
Structural Pipe 42-760 4-120 20#, 35#, 45#, Q345A/B/C/D, Q390, Q420, 25Mn, 27SiMn etc. GB/T 8162 General structural and mechanical pipe
Vehicle Pipe 45-245 4-35 20Mn2, SAE1527, MZ410R, MZ530R, 30Mn2, 40Cr, 45Mn2 etc. Technical agreement, YB/T5035 Pipe used for automobile axle and automobile semi-shaft
Mold Pipe & Tube DN200-DN1200 - 21CrMo10, 21CrMo10-2 etc. Q/OHAD030, technical agreement Centrifugal graphite casting-iron pipe mold
Military Pipe 42-760 4-120 30Cr, 40Cr, 35CrNi1MoA etc. National military standard, agreement Pipe for military use
Geology Drilling Pipe & Tube 42-133 - DZ40, DZ55, STM-R780, DZ60 etc. Q/OHAD006, GB/T 9808, agreement Drilling pipe
Hydraulic Support Pipe 42-760 4-120 20#, 35#, 45#, 27SiMn, 30MnNbRE, 30CrMnSi, 30CrMnSiA etc. GB/T 17396, technical agreement Making hydraulic equipment for coal mine exploitation and hydraulic cylinder and piston for truck crane
Fluid Transmission Pipe & Tube 42-760 4-120 20#, Q345, Q390 etc. GB/T 8163, technical agreement Pipe & tube used for fluid transmission

Note: Steel pipe can be developed and produced to meet the users’ personalized requirements according to their demands.

6 Structural Applications of Pipes

Steel pipes come in a wide variety of sizes and grades, making them highly versatile. Here are key structural applications that highlight their adaptability and strength.

Concrete Piling Casing

The construction industry prioritizes safety and durability, especially for heavy-load structures. Steel pipe casings enhance soil friction and stability for concrete pile foundations.

Pipe Casing

Steel pipe casings protect utility lines—including water, gas, electrical, and fiber optics—from natural and human-induced damage, ensuring infrastructure integrity.

Scaffolding

Steel pipes joined with fittings create strong, fire-resistant scaffolding that supports workers and equipment safely during construction or maintenance.

Steel Pole & Signage

Used as poles for electrical lines, traffic signs, and street lighting—they offer long-term weather resistance and structural reliability.

Fencing

Steel pipe fencing enhances safety and impact resistance—used in pedestrian walkways, livestock enclosures, and residential security barriers.

Handrails

Commonly used in malls, buildings, and industrial facilities—pipe handrails support stairs, ramps, and fall protection systems with high strength and durability.

What are the most popular usages of structural steel pipe?

Nowadays, structural steel pipes are used in almost every sector.

This material became immensely popular due to its durability, resistance power and load-bearing capacity. Experts use steel pipes in various fields such as manufacturing, structural and transportation. The structural steel fabrication process involves combining various shapes to manufacture predefined sizes and shapes to assemble industrial tools, equipment and other products.

Transportation

Structural steel pipes are commonly used to transport substances from one place to another due to their inherent strength and durability.

Construction

Widely used in projects for columns, beams, trusses, and load-bearing components, ensuring stability and integrity of buildings.

Industrial Equipment

Used in fabrication of industrial tools, shaped to provide better support and structural integrity for equipment.

Infrastructure

Play a crucial role in bridges, tunnels, and stadiums, providing strength to withstand heavy loads and ensure longevity.

Agricultural Infrastructure

Used in barns, storage facilities, and irrigation systems, offering durability and versatility for agricultural applications.

What is honed tube?

Construction Materials

6 Types of Pipes Used in Building Construction

Pipes in building construction serve diverse purposes, from plumbing to structural support, with each type offering unique benefits like durability, cost-efficiency, or corrosion resistance tailored to specific applications.

Carbon Steel Pipes

Known for strength and durability, these pipes (seamless or welded) handle extreme temperatures and pressures, ideal for plumbing, scaffolding, and industrial systems like petrochemical plants.

Cast Iron Pipes

Durable and long-lasting (up to 100 years), these are used in sewerage, drainage, and storm drains but are prone to corrosion, making them less common today.

Galvanized Steel Pipes

Coated with zinc for rust resistance, these cost-effective pipes suit fencing, railings, and water supply systems, requiring minimal maintenance.

Galvanized Iron Pipes

Corrosion-resistant and sturdy, they’re used in automotive, agricultural, and architectural applications but may struggle in high-salt environments.

Concrete Pipes

Versatile and durable, often steel-reinforced, these are used for drainage, sewage, and culverts, though installation can be complex.

PVC Pipes

Lightweight and flexible, ideal for electrical conduits and fluid transmission, but they can warp under high temperatures.

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