Seamless Pipe

Seamless Pipe Supplier

Steel Seamless Pipe is a steel pipe manufactured without a welded seam. It is produced through hot rolling, cold drawing, or cold rolling processes, offering uniform structure, high strength, good pressure resistance, and reliable performance for demanding industrial applications.

As a profesional steel seamless pipe supplier, SKSteel supplies Steel Seamless Pipe with full sizes available, multiple steel grades, strict inspection, mill test certificates, and fast delivery for oil and gas, boiler, mechanical, chemical, power plant, and fluid transportation projects.

Types of Rectangular Steel Tube SKSteel can supply

ASTM A53 Seamless Pipe

ASTM A106 Seamless Pipe

ASTM A333 Seamless Pipe

ASTM A335 Seamless Pipe

API 5L Seamless Pipe

EN10216 Seamless Pipe

DIN17175 Seamless Pipe

JIS G3454 Seamless Pipe

Q235B Seamless Pipe

Q355B Seamless Pipe

Customized Steel Seamless Pipe

Item	Description
Product	Steel Seamless Pipe / Seamless Steel Tube
Standard	API 5L, ASTM A106, ASTM A53, ASTM A179, ASTM A192, ASTM A210, ASTM A333, EN10210, EN10216, DIN, JIS, GB/T
Steel Grade	A106 Gr.B/Gr.C, A53 Gr.B, API 5L Gr.B, X42-X70, ST37, ST52, S355, 20#, 45#, Q345B or Customized
Production Method	Hot Rolled, Cold Drawn, or Cold Rolled
Outside Diameter	10mm-762mm or Customized
Wall Thickness	1.0mm-100mm or Customized
Length	5.8m, 6m, 11.8m, 12m or Customized
Surface	Black, Oiled, Painted, Galvanized, Anti-rust Coated or Customized
Certificate	MTC EN10204 3.1 Available

For other specifications and customization requirements, please contact our professional sales team.

Chemical composition depends on the selected steel grade and project standard. The following table is a common reference for carbon steel seamless pipe materials.

Element	Content (%)
C	According to steel grade requirement
Si	According to steel grade requirement
Mn	According to steel grade requirement
P	Controlled by applicable standard
S	Controlled by applicable standard

Property	Value
Yield Strength	According to grade and standard
Tensile Strength	According to grade and standard
Elongation	According to grade and standard
Pressure Performance	Suitable for high-pressure service according to project requirements

Applications

With their stability in extreme environments, Seamless Pipe is widely utilized across these high-risk core sectors:

Oil & Gas Exploration

High-Pressure Transmission

Power Generation

Chemical & Petrochemical

Challenges & Needs

For high-pressure and high-risk environments, you must avoid these risks when sourcing Seamless Pipe:

Insufficient Structural Integrity

Internal material impurities leading to fatigue failure under pressure.

Mismatched Pressure Ratings

Inconsistent wall thickness failing to withstand rated operating pressure.

Poor Corrosion Resistance

Premature pitting or stress corrosion in severe conditions, increasing downtime costs.

Our Supply Solutions

To avoid these risks entirely, SK STEEL has established a quality loop from billet heating to final inspection.

As your source supplier, we utilize hot piercing and precision cold-drawing processes, ensuring Seamless Pipe possesses superior pressure resistance and metal grain structure.

We integrate heat treatment, end beveling, and high-performance anti-corrosion services, allowing the pipe to be used immediately in high-risk environments, eliminating secondary processing and ensuring engineering safety.

WHY CHOOSE SKSTEEL FOR STEEL SEAMLESS PIPE?

Value-Added Services

We provide more than high-quality Seamless Pipe; we offer full-chain services to remove engineering hurdles:

Heat Treatment Strengthening

Annealing, quenching, or tempering to optimize grain structure and hardness.

Precision End-Processing

Standardized threading or beveling to ensure tight connections.

Surface Protection

3PE, epoxy, or hot-dip galvanizing for significantly extended lifespan.

Transparent Delivery

Detailed material lists and NDT reports to ensure full control.

Collaboration with SK STEEL

FAQ for Steel Supply Services

What is Steel Seamless Pipe?

Steel Seamless Pipe is a steel pipe produced without a welded seam. It has uniform structure and strong pressure resistance, making it suitable for high-pressure, high-temperature, and critical industrial applications.

What standards can SKSteel supply for Steel Seamless Pipe?

SKSteel can supply Steel Seamless Pipe according to API 5L, ASTM A106, ASTM A53, ASTM A179, ASTM A192, ASTM A210, ASTM A333, EN10210, EN10216, DIN, JIS, GB/T and other project standards.

What is the difference between Seamless Pipe and ERW Pipe?

Seamless Pipe has no welded seam and is commonly used for pressure service and demanding industrial use. ERW Pipe is welded from steel coil and is often used for structural, general fluid, and cost-sensitive applications.

Can Steel Seamless Pipe be used for boiler and pressure systems?

Yes. SKSteel can supply seamless pipe grades suitable for boiler, heat exchanger, hydraulic, and pressure applications according to the required standard and inspection conditions.

Can SKSteel provide customized processing for Steel Seamless Pipe?

Yes. Cutting, beveling, threading, coating, marking, packing, and custom length services are available according to customer requirements.

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