Overview of Q235 Steel Tube Seamless Steel Carbon Pipe

Q235 Steel Tube Seamless Steel Carbon 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 Q235 Steel Tube Seamless Steel Carbon 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.

(Q235 Steel Tube Seamless Steel Carbon Pipe)

Specifications of Q235 Steel Tube Seamless Steel Carbon Pipe

Q235 steel tube is seamless carbon steel pipe. It serves many structural and mechanical purposes. This steel grade offers good strength. It welds easily. Machining it is straightforward too. The seamless production method matters. It means no welded seam exists along the pipe length. This creates a stronger, more reliable product. It handles higher pressure better. Leak risks are lower.

Look at the specifications closely. Outer diameters vary widely. Common sizes start around 21mm. They go up to 820mm or more. Wall thickness is also flexible. Thin walls might be 1mm. Thick walls can reach 40mm. Pipe length is usually 6 meters or 12 meters. Custom lengths are possible. Weight depends directly on diameter and wall thickness. Thicker walls and bigger diameters mean heavier pipes. Standard weight charts exist for reference.

The mechanical properties define performance. Q235 steel has a minimum yield strength of 235 MPa. This is the stress point where it starts bending permanently. Its tensile strength range is 370-500 MPa. This measures the force needed to break it. Elongation is typically above 25%. This shows good ductility before failure. Hardness levels are moderate. Impact toughness is suitable for many environments.

Surface finish is generally smooth. Mill scale is common from the hot rolling process. Customers often request removal. Options include shot blasting or painting. Black finish, meaning the mill scale remains, is standard. Tolerances for dimensions like outer diameter and wall thickness follow international standards. Common ones are ASTM, EN, or GB standards. Chemical composition is simple carbon steel. Iron is the main element. Carbon content is low, usually under 0.20%. Manganese, silicon, sulfur, and phosphorus are present in small amounts.

People use Q235 seamless pipes everywhere. Construction sites need them for building frames and supports. Machinery manufacturing relies on them for parts and structures. They work well for fluid transport systems. Think water, oil, or gas under moderate pressure. General engineering projects frequently specify this affordable, reliable pipe. Its balance of cost and performance makes it popular.

(Q235 Steel Tube Seamless Steel Carbon Pipe)

Applications of Q235 Steel Tube Seamless Steel Carbon Pipe

Q235 steel tube seamless carbon pipe finds many uses across industries. Its strength and toughness make it reliable. Builders use it extensively. You see it in construction scaffolding. It provides a safe, sturdy frame for workers. Structural frames for buildings and warehouses often rely on it. It handles heavy loads well. Machinery manufacturing needs dependable parts. This pipe fits the bill. It forms rollers, shafts, and cylinders inside heavy equipment. Its seamless nature means no weak spots. This prevents leaks under pressure. Conveyor systems use lengths of this pipe. It lasts long, handling constant movement and material weight. Factories employ it for support columns and machine frames. It offers good stability. Vehicle makers incorporate it too. It builds chassis parts and structural elements for buses or trucks. Its carbon steel composition gives it weldability. This simplifies fabrication. It machines relatively easily also. This pipe works for fluid transport in less critical systems. Think water lines or low-pressure air systems in plants. Its affordability matters. Q235 offers solid performance without high cost. This makes it a common choice for basic structural needs. Fabricators appreciate its availability. It comes in various sizes and wall thicknesses. This flexibility suits different project demands. It handles outdoor conditions reasonably. Proper surface treatment prevents rust effectively. Farmers use it for equipment frames and irrigation structures. Its resilience suits demanding environments. Infrastructure projects select it for guardrails and sign supports. It provides necessary strength on highways. The oil and gas sector uses it for certain non-critical piping. It works well for walkways and platform supports on rigs. Its consistent quality ensures predictable performance. Engineers trust its specifications.

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 Q235 Steel Tube Seamless Steel Carbon Pipe

Q235 Seamless Steel Tube FAQs

What is Q235 steel?
Q235 is a common carbon steel grade. Its number means it guarantees 235 MPa minimum yield strength. This steel has good strength and ductility. It’s widely used for structural parts and general engineering.

Where do people use Q235 seamless tubes?
People use them in many building projects. They are common in construction frames, support columns, and machinery parts. Factories use them for fluid transport systems needing pressure resistance. Oil and gas, water treatment, and some factories rely on them.

Why choose seamless tubes over welded ones?
Seamless tubes have no welded seam. This makes them stronger overall. They handle higher pressure and stress better. They are safer for critical applications like high-pressure gas lines. Welded tubes can fail at the seam.

Does Q235 seamless tube resist corrosion well?
Q235 is carbon steel, not stainless steel. It will rust if exposed to moisture or corrosive environments. Protection is necessary. Common methods include painting, galvanizing, or coating the surface. Use stainless steel grades like 304 for better rust resistance.

What standards apply to these tubes?
Q235 seamless tubes follow Chinese GB/T 8163 standard mainly. International equivalents exist. ASTM A106 Grade B is a common similar standard. These standards define the chemical makeup, strength, and testing methods. This ensures consistent quality and performance.

(Q235 Steel Tube Seamless Steel Carbon Pipe)