Carbon Steel Pipes & Tubes Supplier - Seamless Welded, ASTM A53 Pipes

At USA Piping Solution, we are trusted carbon pipe suppliers known for delivering premium-grade carbon steel pipes and tubes across global markets. Our extensive inventory includes precision-engineered carbon steel pipes designed for strength and reliability, alongside high-performance carbon steel tubes suitable for structural, pressure, and heat-exchange applications. From seamless to welded variants, each product is manufactured to meet stringent international standards, including ASTM A53. With decades of industry experience and a strong focus on quality assurance, we support industries ranging from oil & gas to power and construction with reliable supply and technical expertise

What Are Carbon Steel Pipes and Tubes?

Carbon steel pipes and tubes are essential components in industrial systems that require strength, durability, and reliability. While both are made from carbon steel—an alloy of iron and carbon—their form, function, and classification differ in critical ways.

Carbon steel pipes are primarily used for transporting fluids and gases. They are specified by nominal pipe size (NPS) and schedule (wall thickness), making them ideal for applications where internal pressure is a key factor, such as in oil & gas pipelines, refineries, and power plants.

On the other hand, carbon steel tubes are measured by exact outside diameter (OD) and wall thickness, offering greater precision. Tubes are commonly used in structural frameworks, automotive parts, and boiler and heat exchanger systems where tight tolerances and load-bearing capacity are crucial.

Our carbon steel piping and tubing solutions are available in various grades and standards, including the widely used ASTM A53 pipes, known for their mechanical strength, weldability, and suitability in pressure applications.

With both options tailored to meet different industrial demands, understanding the distinction between pipe and tube ensures optimal performance and compliance in every project.

Our Carbon Steel Pipe & Tube Range

At USA Piping Solution, we offer a wide selection of carbon steel pipes and tubes to meet the precise needs of global industries. Our inventory includes seamless, welded, and boiler-grade products engineered with strict adherence to international standards. Whether you're looking for high-strength piping systems or precision-engineered tubes, we have the right solution backed by certifications, expert manufacturing, and timely global delivery.

Seamless Pipes & Tubes

Seamless Pipes & Tubes

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Welded Pipes & Tubes

Welded Pipes & Tubes

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Boiler & Heat Exchanger Tubes

Boiler & Heat Exchanger Tubes

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ASTM A53 Pipes – Specifications & Grades

ASTM A53 is one of the most recognized and widely used specifications for carbon steel pipes, designed to support a wide range of mechanical, structural, and pressure-bearing applications. At USA Piping Solution, we supply high-quality ASTM A53 pipes that conform to global standards and ensure long-term performance, especially in pipelines, heating systems, and fabrication works.

This specification covers both seamless (Type S) and electric resistance welded (Type E) carbon steel pipes. These pipes are suitable for bending, flanging, welding, and forming, making them ideal for oil & gas transmission, water distribution, and industrial piping systems.

ASTM A53 Pipe Types:

  • Type S – Seamless pipe, made by hot-working and possibly cold-finishing the steel.
  • Type E – Electric Resistance Welded (ERW) pipe, produced by welding the longitudinal seam.

All pipes are available in Grades A and B, with Grade B offering higher strength and more common usage in pressure-related applications.

ASTM A53 Specification Table

Parameter

ASTM A53 Grade A

ASTM A53 Grade B

Type

S (Seamless), E (ERW)

S (Seamless), E (ERW)

Minimum Yield Strength

30,000 psi (205 MPa)

35,000 psi (240 MPa)

Minimum Tensile Strength

48,000 psi (330 MPa)

60,000 psi (415 MPa)

Applications

Low-pressure systems, forming

High-pressure & structural use

Welding Capability

Excellent

Excellent

Carbon Steel Pipes & Tubes – Sizes, Grades & Schedules

At USA Piping Solution, we offer an extensive inventory of carbon steel pipes and tubes in a wide range of sizes, wall thicknesses, and pressure schedules to suit critical industrial applications. Whether you require carbon steel seamless pipes and tubes or carbon steel welded pipes and tubes varieties, we ensure every dimension meets international specifications, including ASTM, ASME, and API standards. Our expertise in supplying the right grade for your project helps maintain safety, performance, and cost-efficiency across industries such as oil & gas, power generation, construction, and petrochemicals.

All carbon steel pipes and tubes are available in standard and customized sizes, suitable for high-pressure, structural, or thermal applications.

Size & Specification Chart – Carbon Steel Pipes & Tubes

Product Type

Outside Diameter Range (inches)

Wall Thickness (mm)

Schedule Available

Standard Grades

Seamless Carbon Steel Pipes

1/2" – 24"

2.0 mm – 20.0 mm

Sch 10 to Sch 160

ASTM A53, A106, API 5L

Seamless Carbon Steel Tubes

6 mm – 114.3 mm

1.0 mm – 15.0 mm

Custom as required

ASTM A179, A210

Welded Carbon Steel Pipes

1/2" – 48"

1.65 mm – 25.4 mm

Sch 10 to Sch XXS

ASTM A53, API 5L, IS 3589

Carbon Steel Boiler Tubes

1/2" – 5"

1.5 mm – 12.0 mm

Medium & High Pressure

ASTM A192, A210

Our technical team ensures that each carbon steel pipe and carbon steel tube is thoroughly tested for dimensional accuracy, strength, and compliance with your project’s operating requirements. We also provide material test certificates, NACE compliance, and IBR-approved materials on request.

Chemical Composition & Mechanical Properties

At USA Piping Solution, we ensure that all our carbon steel pipes and tubes, including ASTM A53 and other industry-standard grades, meet precise chemical and mechanical specifications required for safe, reliable, and long-term industrial use. Our seamless and welded products are manufactured under strict quality protocols, ensuring consistency in performance across different pressure ratings and environments.

Below are the typical chemical compositions and mechanical properties of commonly supplied grades of carbon steel seamless pipes, welded pipes, and carbon steel tubes, including boiler and structural applications.

Chemical Composition (% by Weight)

Grade

C (Max)

Mn

P (Max)

S (Max)

Si (Max)

Cu (Max)

Ni (Max)

ASTM A53 Gr A

0.25

0.95

0.05

0.045

0.10

0.40

0.40

ASTM A53 Gr B

0.30

1.20

0.05

0.045

0.10

0.40

0.40

ASTM A106 Gr B

0.30

1.00–1.60

0.035

0.035

0.10

ASTM A179 (Tube)

0.06–0.18

0.27–0.63

0.035

0.035

ASTM A210 Gr A1

0.27

0.93

0.035

0.035

Mechanical Properties

Product Type

Grade

Tensile Strength (MPa)

Yield Strength (MPa)

Elongation (%)

Seamless Pipe

ASTM A53 Gr B

415–485

≥240

≥22

Welded Pipe

ASTM A53 Gr A

330–415

≥205

≥25

Seamless Pipe

ASTM A106 Gr B

≥485

≥240

≥22

Seamless Tube

ASTM A179

≥325

≥35

Boiler Tube

ASTM A210 Gr A1

≥415

≥255

≥30

These compositions and mechanical properties are critical for selecting the right material for specific use cases like high-pressure pipelines, heat exchangers, or boiler systems. All materials can be supplied with full MTCs, IBR/PED certifications, and third-party inspection upon request.

Applications of Carbon Steel Pipes & Tubes

At USA Piping Solution, our carbon steel pipes and tubes are engineered to serve a wide array of industries where strength, durability, and performance under pressure are critical. Backed by years of experience and strict adherence to global standards, we supply tailored piping solutions that meet both general and application-specific needs.

Below are the key industry applications where our carbon steel products are widely used:

  • Oil & Gas Pipelines: Our carbon steel pipes are ideal for upstream, midstream, and downstream pipeline infrastructure, offering high tensile strength and corrosion resistance for transporting oil, natural gas, and petroleum products.
  • Heat Exchangers: Precision-engineered carbon steel tubes are used in shell-and-tube heat exchangers, condensers, and coolers, providing excellent thermal conductivity and mechanical stability.
  • Boilers and Steam Systems: We supply carbon steel boiler tubes that are capable of withstanding high temperatures and pressures, making them perfect for industrial boilers, superheaters, and economizers.
  • High-Pressure Systems: Our carbon steel seamless pipes deliver superior performance in high-pressure and high-temperature environments, commonly used in chemical plants, power generation units, and refineries.
  • Structural Fabrication and Construction: Durable and cost-effective carbon steel welded pipes are used for load-bearing frameworks, columns, scaffolding, and general construction work due to their formability and strength.

Each product is manufactured to meet project-specific demands and is delivered with complete traceability, material test certifications, and third-party inspection options to ensure compliance with safety and regulatory standards

Why Choose USA Piping Solution as Your Carbon Pipe Supplier?

As one of the most trusted carbon pipe suppliers, USA Piping Solution delivers high-quality carbon steel pipes and tubes, carbon steel seamless pipes and tubes, carbon steel welded pipes and tubes, boiler and heat exchanger tubes to industries across oil & gas, power, petrochemicals, and infrastructure in over 40 countries. We are an ISO 9001:2015 certified company, ensuring that every product meets international quality standards through rigorous inspections, full traceability, and third-party certifications. Our inventory includes a wide range of seamless, welded, and boiler-grade pipes and tubes, all backed by expert support and compliance with global specifications such as ASTM A53.

What sets us apart from typical carbon pipe suppliers is our ability to offer fast turnaround, project-specific customization, and a customer-first approach. With ready stock of standard sizes and efficient global logistics, we ensure timely deliveries for urgent requirements across continents. Our growing international client base—from EPC contractors to OEMs—trusts us for reliable, cost-effective, and technically sound piping solutions. If you’re seeking a dependable partner for your next industrial requirement, USA Piping Solution is ready to support you with excellence at every step.

Get Best Quote for Carbon Steel Pipes and Tubes

Looking for high-quality carbon steel pipes and tubes? At USA Piping Solution, we offer seamless procurement, fast delivery, and global-grade materials including seamless, welded, and ASTM A53 pipes. As a Verified Exporter and ISO 9001:2015 Certified supplier, we ensure full traceability, test certifications, and worldwide service across 40+ countries.

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FAQs on Carbon Steel Pipes & Tubes

What is the ASTM A53 pipe used for?

ASTM A53 pipes are commonly used in low-pressure and medium-pressure systems for applications like water transportation, air lines, steam lines, and structural supports. They are suitable for welding, bending, and flanging, making them ideal for oil & gas pipelines, power plants, and construction projects.

What is the difference between carbon steel pipe and tube?

While both are made from carbon steel, the difference lies in their sizing and applications. Carbon steel pipes are specified by nominal diameter and wall thickness, typically used for transporting fluids and gases. Carbon steel tubes, on the other hand, are measured by exact outside diameter and are often used in structural and precision applications like heat exchangers and boiler systems.

Are seamless pipes better than welded pipes?

Carbon steel seamless pipes offer superior strength, pressure resistance, and uniformity since they’re manufactured without welds, making them ideal for high-pressure and high-temperature environments. Welded pipes are more cost-effective and suitable for low to medium pressure systems. The choice depends on application requirements, budget, and compliance standards.

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Application Industries



Boilers Boilers

Heat Exchangers Heat Exchangers

Power Plants Power Plants

Steam Piping Steam Piping

Refineries Refineries

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