Carbon Steel Seamless Pipe

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World-Class Manufacturing

Advanced ERW technology ensures precision, strength, and international quality standard compliance.

Comprehensive Product Range

Extensive pipe sizes meet diverse plumbing, construction, and industrial application needs.

Uncompromising Quality Standards

Rigorous testing guarantees every pipe exceeds international quality and safety expectations.

Our Mission

Delivering world-class pipes strengthening infrastructure through innovation and quality manufacturing excellence.

Our Vision

Leading Middle East steel manufacturing with excellence, reliability, and innovative solutions.

Our Goals

Producing international-standard pipes through advanced technology and skilled workforce development programs.

OUR SPECIALTY

The Backbone of Modern Construction

Our round pipes are used in buildings, water systems, and industrial projects all over Saudi Arabia. They're strong, durable, and made to last for decades.

Steel Tube Factory in Saudi Arabia: Complete Guide 2025

STRUCTURAL STRENGTH

Perfect for Frames and Structures

Square tubes are ideal for building frameworks, gates, fences, and structural supports. We make them in all the sizes you need.

VERSATILE SOLUTIONS

Multi-Purpose Pipes for Any Job

From industrial shelving to construction frameworks, our rectangular tubes work for all kinds of projects. Quality guaranteed.

Q355 Carbon Steel Seamless Pipe: A Durable and Super-High-Strength Solution for Your Challenges

When it comes to hard, solid, and good-looking pipes that also provide unmatched performance, these Q355 carbon steel seamless tubes are in demand. This premium material is key to applications across construction, energy, and manufacturing sectors globally.

What Is Q355 Carbon Steel Seamless Pipe?

Q355 Carbon Tube is a kind of seamless steel pipe manufactured without a welded seam. Q355 is a sign of the yield strength of the material, which is 355 Megapascals. This strength level is considered to be ideal for heavy applications.

No joint is fabricated to the pipe wall, ensuring even wall thickness. There are no welded joints, so fewer things can go wrong with the structure. This method of construction creates pipes that are better able to withstand high pressure and stress than welded counterparts.

Key Material Properties

The mechanical properties of Q355 carbon steel are well balanced. The material has both strength and workability. Engineers select this grade when projects require greater performance and certainty of uniformity.

The chemical composition is controlled by amounts of carbon, manganese, and silicon. It is through these elements that the necessary strength properties are imparted to the material. The steel retains good weldability at ratings up to 20 mm.

Advantages of Seamless Construction

There are a few advantages to using seamless pipe over welded pipe. No weld seams means strength and safety in pipe construction. The pressure inside this design has been optimized and more uniformly distributed over the full surface.

Seamless pipe manufacturing consists of heating solid steel billets. The hot steel is pierced and shaped into a tube. This allows for a uniform wall thickness along the length.

The existence of longitudinal weld seams adversely affects the corrosion resistance. There are no overlap stress concentrations at welds. The result is increased longevity in challenging environments.

Common Applications and Industries

Construction projects frequently specify Q355 seamless steel pipe for structural supports. The material becomes columns, beams, and framework throughout skyscrapers. Its strength-to-weight ratio leads to cost-effective construction for large building structures.

These pipes are used for oil and gas businesses’ transmission lines. Leak-proof under extreme pressure, this design ensures ultra-seal performance. Q355 pipe is also used in flow coating production systems at refineries and processing plants.

Hydraulic systems incorporate this pipe grade in manufacturing plants. With heavy equipment, you need parts that can withstand the back and forth of stress. The continuous mandrel makes for perfect fatigue resistance in these applications.

Boiler tubes and pressure vessels for power generation plants use Q355 pipe. The composition has good hot properties. The mechanical stability is very important for energy components.

Size Range and Specifications

Q355 carbon steel seamless pipe comes in diverse dimensions. Outside diameters are typically 20mm to 600mm or larger. Wall thickness is available from 2mm to 80mm according to application requirements.

Typical length ranges between 6 and 12 meters. Custom lengths are available when requiring installation considerations. Suppliers may supply pipes that are random cuts, to specific sizes, or in multiple cut pieces.

The tubes meet the standards of GB, ASTM, and API. This is to ensure compatibility across the globe when it comes to project requirements. Traceable with quality certifications per shipment.

Quality Standards and Testing

Each Q355 seamless pipe is strictly controlled in accordance with the standard. Two heat chemical composition analyses are conducted by manufacturers. Strength, yield and tensile, and elongation are also confirmed through mechanical testing.

Nondestructive evaluation methods are able to infer internal imperfections. Crack testing using ultrasound reveals internal defects that are not visible to the eye. Hydrostatic pressure test shall be performed to show that the pipe is capable of rated pressure.

The results of all tests are recorded on the mill test certificates. Such certificates are traceable from raw material to finished part. All our orders are provided with full quality documentation.

Surface Finish Options

Black pipes have a natural mill scale finish. Good for structural applications, this cost-efficient option does the job. The dark oxide is not removed from the work surface by pickling or other cleaning processes; hence it is termed a permanent finish.

Galvanized finish adds durability to thwart corrosion for outdoor use. The zinc coating prevents the steel from being exposed to moisture. This finish prolongs the life of the product in extreme conditions.

Paint or coated surfaces comply with project requirements. Epoxy coatings provide chemical resistance. Multiple finishes suit all installation types: ambiance, direct rainfall, and waterfall effect.

Why Choose Arif Alkhayr for Q355 Seamless Pipe

Arif Alkhayr provides high-quality Q355 carbon steel seamless pipe with test certificates. Our stock is manufactured in accordance with recognized international standards and comes with all certification and test reports. We do have stock for short delivery time.

Detailed technical advice on the selection of pipe from our team. We assist in matching the specifications to your particular application needs. Competitive pricing ensures that you can find the seamless pipe to fit your needs and budget.

We hold a 5.0 rating, with our service to customer satisfaction being the backbone of all we do. We buy only from certified mills that have a proven track record of results. Your project gets quality material supported by responsive support.

Ordering and Delivery Information

Inquire for Q355 carbon steel seamless pipe price list. Please inform us of your required size, quantity, and delivery address. We reply quickly with competitive prices and availability.

We organize effective shipping to project destinations worldwide. Good packaging prevents pipes from damage in transportation. Deliveries coincide with your building and manufacturing schedules.

Get in touch with Arif Alkhayr so we can listen to your Q355 seamless pipe needs. We apply our know-how to provide the product that will best stand up to your most demanding applications. Top-notch material, professional assistance, and dependable delivery all come together to help the project succeed.

Carbon Steel Seamless Pipe