Overview of Astm A36 St52 Q235 Q345 Q355 Q500 Hot Rolled Round Welded Seamless Carbon Steel Tube Pipe

Astm A36 St52 Q235 Q345 Q355 Q500 Hot Rolled Round Welded Seamless Carbon Steel Tube Pipe is designed for efficient and secure gas transportation in residential, commercial, and industrial applications. Made from durable materials such as carbon steel, stainless steel, or PE polyethylene, our gas pipes ensure leak-proof performance and long-term reliability. Whether for natural gas, propane, or other fuel gases, our products meet strict industry standards for safety and efficiency.

Features of Astm A36 St52 Q235 Q345 Q355 Q500 Hot Rolled Round Welded Seamless Carbon Steel Tube Pipe

Corrosion-Resistant – Engineered to withstand harsh environments and prevent leaks.

High Pressure and Temperature Tolerance – Suitable for demanding gas distribution systems.

Lightweight and Flexible PE Pipes – Easy to install with excellent durability.

Leak-Proof Joints – Precision welding and threading for secure connections.

Compliant with Safety Standards – Certified for reliable performance in gas applications.

(Astm A36 St52 Q235 Q345 Q355 Q500 Hot Rolled Round Welded Seamless Carbon Steel Tube Pipe)

Specifications of Astm A36 St52 Q235 Q345 Q355 Q500 Hot Rolled Round Welded Seamless Carbon Steel Tube Pipe

These steel tubes can be found in round shapes. They are hot rolled. You can get bonded kinds or smooth kinds. ASTM A36 is a common carbon steel grade. It provides great stamina and is very easy to bond. St52 is a European architectural steel quality. It supplies higher strength than A36. Q235, Q345, Q355, and Q500 are Chinese steel qualities. Q235 is a basic structural steel. Q345 and Q355 are high-strength low-alloy steels. Q355 usually changes Q345 now. Q500 deals also greater strength levels. These tubes match many architectural and mechanical usages.

Dimensions vary widely. External sizes usually range from little sizes like 10mm up to plus sizes over 1000mm. Wall thickness additionally varies dramatically. You can find thin wall surfaces and very thick wall surfaces. The particular dimension depends upon the production technique and the application needs. Seamless tubes start from solid steel billets. They are pierced and rolled to size. Bonded tubes begin with steel strip or plate. The strip is developed into a round form. The seam is then bonded.

The product grade figures out vital residential properties. Yield toughness and tensile toughness are vital. A36 has a lower yield toughness. St52, Q345, Q355, and Q500 deal gradually greater yield toughness. This makes them ideal for larger loads. Q235 drops in between A36 and the higher qualities. Chemical structure additionally varies. Carbon material, manganese, silicon, and other components differ. This affects weldability, formability, and toughness. The ideal quality depends upon the task demands.

These tubes are made use of almost everywhere. Building frameworks, bridges, and support frameworks utilize them. Machinery, conveyor systems, and agricultural devices need them. They benefit liquid transportation in some low-pressure cases. Construction shops utilize them for frameworks and railings. Building and construction websites depend on them for scaffolding and temporary frameworks. Pick bonded tubes for economical solutions in lots of applications. Choose seamless tubes where greater stress or stress and anxiety is expected. The quality option relies on the needed toughness and regional criteria. Consider the atmosphere and required long life.

(Astm A36 St52 Q235 Q345 Q355 Q500 Hot Rolled Round Welded Seamless Carbon Steel Tube Pipe)

Applications of Astm A36 St52 Q235 Q345 Q355 Q500 Hot Rolled Round Welded Seamless Carbon Steel Tube Pipe

ASTm A36 steel tubes and pipelines are very common. Builders use them for structures. They are strong and cost effective. You see them in structures, sustains, and columns. Factories utilize them for basic structures too. St52 quality is stronger. It’s good for heavy machinery components. It deals with anxiety well. Building tools frequently makes use of St52 tubes. Q235 steel is another basic kind. It’s preferred in China. People use it for basic frameworks. Fencings and entrances commonly utilize Q235 pipe. It’s a cost-effective choice for low-stress work.

Q345 and Q355 qualities provide better strength. They are commonly used in construction. You find them in constructing frames and bridges. They function well for heavy equipment structures. Trucks and trailers make use of these pipes. Crane booms require this strength. Q355 is extremely comparable to Q345. It typically changes Q345 currently. Both take care of pressure better. So they benefit liquid systems. Assume pipes or low-pressure gas lines. Machinery needing tougher parts utilizes Q355.

Q500 steel is a lot stronger. It’s for requiring structural tasks. High buildings make use of Q500 tubes. Long bridges need its high toughness. Huge towers benefit from it. It allows lighter layouts while being strong. This saves product and weight. Both welded and seamless types exist. Bonded tubes are fine for the majority of structures. Seamless pipelines are better for high pressure. Oil and gas lines usually need seamless pipe. Hydraulic systems make use of seamless pipeline as well. Select based upon the job’s stress requirements. Warm rolled steel provides great strength. It’s trustworthy for numerous uses.

Packing and Shipment

Depends on the products and qty,we could make the packing of coiling,rolls,bundle packing,crates or boxes,etc.

Shipment:By sea,railway,by air or as customer’s request.

Company Profile

Luoyang Datang Energy Tech Co., Ltd. is a leading Chinese manufacturer specializing in high-quality plastic pipes and fittings. Equipped with state-of-the-art automated production lines and supported by a team of 200 professionals, we offer an extensive product line comprising over 150 types of plastic pipes and fittings designed for water supply and drainage systems, gas transmission, and floor heating systems. Our main products include PVC Pipes and Fittings, PE (HDPE) Pipes and Fittings, PPR Pipes and Fittings, and PEX Floor Heating Pipes. 

Should you have any inquiries regarding HDPE Pipe Fitting, please do not hesitate to contact us!

Tel.:0086-183 3790 0677

Wechat: 0086-183 3790 0677

Whatsapp: 0086-183 3790 0677

Email: sales@pipesandfittings.net

Payment Terms

T/T,L/C at sight,Western Union & Paypal,etc.

5 FAQs of Astm A36 St52 Q235 Q345 Q355 Q500 Hot Rolled Round Welded Seamless Carbon Steel Tube Pipe

Here are 5 common questions about hot rolled carbon steel tubes (ASTM A36, St52, Q235, Q345, Q355, Q500):

What are these tubes made from? These tubes come from carbon steel. Different grades like ASTM A36, St52, Q235, Q345, Q355, Q500 indicate the steel’s specific properties. Each grade has slightly different strength levels and chemical makeup.

Where are these tubes used? They are used in many industries. Common uses include building frames, support structures, machinery parts, and general fabrication. The specific grade chosen depends on the job’s strength needs. Q355 or Q500 are picked for higher stress situations.

What sizes are available? These tubes come in many diameters and wall thicknesses. Sizes range from small diameters for light jobs to large diameters for heavy construction. Both welded and seamless types exist. Check supplier catalogs for exact size options.

How do these grades compare in strength? Strength increases generally from grades like Q235 or A36 up to Q355 and Q500. Q500 offers the highest strength in this group. St52 and Q345 are similar, often medium strength. Q355 is stronger than Q345.

Can I get these tubes easily? Yes, these are standard products. Steel suppliers and metal service centers usually stock them. Availability for specific sizes or grades might vary. It’s best to ask your supplier directly about current stock.

(Astm A36 St52 Q235 Q345 Q355 Q500 Hot Rolled Round Welded Seamless Carbon Steel Tube Pipe)