Midland Alloys Inc. is a reliable Indian manufacturer and international carbon steel tube supplier in Mumbai, India, that provides precision-engineered solutions to various industries. We provide a complete line of carbon steel tubes, such as carbon steel seamless tubes, carbon steel ASTM A106 seamless tubes, and ASTM A53 carbon steel tubes, ranging from A106 Gr. A/B/C, A53 Gr. A/B and SA671. These tubes can be supplied in different sizes such as 20 mm Carbon Steel Tube, 25 mm Carbon Steel Tube, and Thin Wall Carbon Steel Tube, with custom schedules, wall thicknesses, and finishes. Carbon steel tubes are cylindrical steel products made predominantly from iron and carbon, with minimal alloying elements. These tubes are valued for their strength, machinability, and capability to withstand high-pressure conditions. Also known as CS Tubes, they have uniform chemical composition (generally 0.05–0.30% carbon), better mechanical properties, outstanding tensile strength (up to 485 MPa), excellent elongation (20%–35%) and optimized reduction of area, making them extremely suitable for challenging applications in structural, mechanical, and pressure-based systems.
carbon-steel-tubes
carbon-steel-tube

Benefits of Carbon Steel Tubes

Carbon steel tubes are widely used in industries such as construction, oil and gas, and manufacturing due to their strength, reliability, and cost-effectiveness. It is ideal for both structural and fluid transport applications and meets rigorous industrial standards.

 

  • High loads, mechanical stress, and rigorous operating circumstances can all be handled by carbon steel tubes due to their exceptional strength and longevity.
  • It is cost-effective, providing a reliable solution for large projects without adding excessive costs.
  • The materials are appropriate for equipment, heat exchangers, piping systems, and structural frameworks due to their adaptability.
  • Carbon steel tubes are reliable in high-pressure and thermally stressed conditions as it continues to function well at high temperatures and pressures.
  • In situations where corrosion risks are low, it provides protection because of its resistance to corrosion.
  • Carbon steel tubes have no effect on the environment and are completely recyclable.
  • Standard welding, machining, and forming procedures for specialised applications are supported by their simplicity of construction.

Carbon Steel Tubes Specifications

Finish
Sizes in Stock

Seamless Tube OD : 1/8 -12" NPS
Welded Tube OD : 6.00 mm OD up to 914.4 mm OD
EFW Tube Size : 3.35 mm OD To 101.6 mm OD

ASTM Standard
Standard

ASTM B622, B626 / ASME SB622, SB626

Process
Manufacturing Process

Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded

Form
Form

Round, Square, Rectangular, Hydraulic Etc

Length
Length

Single Random, Double Random, Standard & Cut length Tube

End Icon
End

Plain End, Beveled End, Treaded Tube

Schedule
Schedule

SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS

Finish
Surface Finish

2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Tubes, Finish as per customer Requirements

Contact Midland Alloys Inc. for Your Carbon Steel Tubes Needs

Contact us today to discuss how Carbon Steel Tubes can benefit your application. Whether you need guidance in selecting the right Tubes or have specific requirements, our team of experts is here to help you find the optimal solution.

Carbon Steel Tubes Grades We Offer

Difference Between Carbon Steel Tubes vs Hastelloy Tubes

Carbon steel tubes are widely used for their cost-efficiency, high tensile strength, and adaptability across multiple systems such as structural pipelines and steam boilers. They are ideal for moderate corrosion environments and general-purpose use. In contrast, Hastelloy Tubes nickel-based alloys offer superior resistance to aggressive chemicals and high temperatures, making them more suitable for critical chemical processing, marine, or high-corrosion applications. While carbon steel is easier to fabricate and more economical, Hastelloy offers advanced protection in extreme operating conditions where material integrity is non-negotiable.

Round Bar

Round Bar

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Analytic

Analytic

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Cut to Length

Cut to Length

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Centering

Centering

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Heating

Heating

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Perforation

Perforation

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Inspection of Size

Inspection of Size

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Pickling

Pickling

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Inspection of Surface

Inspection of Surface

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Lubricating

Lubricating

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Cold Drawing (Cold Rolling)

Cold Drawing (Cold Rolling)

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Degreasing

Degreasing

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Annealing

Annealing

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Straightening

Straightening

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Cut

Cut

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Pickling / Passivating

Pickling / Passivating

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Inspection

Inspection

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Analytic

Analytic

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Marking

Marking

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Packing & Shipping

Packing & Shipping

Applications of Carbon Steel Tubes

Carbon steel tubes find broad usage across diverse sectors due to their toughness, adaptability, and mechanical integrity. In the oil and gas industry, these tubes serve as flow lines, risers, and casing for drilling operations. Power plants rely on carbon steel steam boiler tubes for heat transfer and pressure systems. The construction industry uses carbon steel round tubes and carbon steel rectangular tubes in load-bearing structures, architectural frameworks, and scaffolding. In automotive and transport, they are preferred for fuel lines, hydraulic tubing, and suspension systems. Additionally, chemical and refinery plants use Schedule 40 carbon steel pipes for transporting non-corrosive media under pressure. Their widespread use across fertilizer plants, paper mills, food processing, and water treatment units underscores their reliability and cost-performance balance.

Why Choose Midland Alloys Inc. for Carbon Steel Tubes

Midland Alloys Inc. is a prominent Indian exporter and producer of quality ASME SA671 Carbon Steel EFW Tube, with superior material solutions made to your specifications. As an ISO-certified company, we make sure that each tube meets the exact ASTM/EN requirements and has consistent performance. We offer flexible customization, including cut-to-length sizes, special end finishes, surface treatments, and custom schedules across products like Carbon Steel A53 Pipes. With a robust global presence in Gulf countries, Europe, Africa, and Southeast Asia, we serve a wide range of industrial clients. Each batch undergoes a rigorous internal testing process, that is backed by project-based QA documentation, third-party inspections, and Mill Test Certificates. Our export and logistics departments ensure prompt delivery, technical assistance and expert management of large, or specialized orders. Certification & Marking is done on each carbon steel tube, which has an MTC attesting to its mechanical compliance and chemical composition, and it is marked in accordance, with ASTM/ASME standards.

FAQs

In industries such as manufacturing, power generation and oil and gas, carbon steel tubes are used in order to transfer fluids, gases and high-temperature and pressure steam.

Yes, carbon steel tubes are ideal for high-pressure, and structural uses owing to their remarkable strength and resistance to mechanics.

No, carbon steel is an inexpensive choice for most industrial uses as it tends to be less costly than alloy, or stainless steel.

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