Specifications of Carbon Steel Tube

The specifications of Carbon Steel Tubes, including standard, type and surface finish, are listed in the table below.

Parameter General Specification
Standards ASTM A179 / A179M, ASTM A192 / A192M, ASTM A210 / A210M
Type Seamless
Grades Single and multiple grades available
Manufacturing Process Cold drawn, hot finished, or cold finished
Outside Diameter (OD) 6.35 mm (1/4") to 219.1 mm (8")
Wall Thickness As per the standard and customer requirements
Length Single random, double random, or cut length
Heat Treatment Annealed or heat-treated
Surface Finish Mill finish, pickled, oiled, or shot blasted (as required)

Carbon Steel Tube Sizes

The available sizes of carbon steel tubes are mentioned in the table given below.

Parameter Details
Outside Diameter (OD) 6.35 mm (1/4") to 219.1 mm (8")
Wall Thickness 0.89 mm (0.035") to 20 mm
Length 6 m, 6.1 m (20 ft), or custom cut-to-length
Schedule SCH 10, SCH 40, SCH 80, SCH 160, XXS

End finishes options available are mentioned below.

  • Plain End Finish
  • Bevelled Finish
  • Threaded Finish
  • Grooved Finish

Surface options for Carbon Steel Tubes are mentioned below.

  • Black (mill finish)
  • Galvanised
  • Coated (FBE, 3LPE)

Carbon Steel Tube Applicable Standards

Multiple ASTM/ASME specifications cover carbon steel tubes, each tied to a specific application.

Standard Title Tube Type
ASTM A179 / ASME SA-179 Seamless Cold-Drawn Low-Carbon Heat-Exchanger and Condenser Tubes Seamless
ASTM A192 / ASME SA-192 Seamless Carbon Steel Boiler Tubes for High-Pressure Service Seamless
ASTM A210 / ASME SA-210 Seamless Medium-Carbon Boiler and Superheater Tubes Seamless

Carbon Steel Tube Price

Carbon steel tube pricing in India is around ₹60–120 per kg, while global prices are typically about $0.50–$3.00 per kg. It varies based on grade, outside diameter (OD), wall thickness, manufacturing process, and order volume. Seamless tubes cost 20-40% more than ERW tubes of the same size. Contact us for a current quote.

Types of Carbon Steel Tubes

Carbon steel tubes come in 4 main types based on manufacturing process.

SS 304 Welded Pipe

Seamless Carbon Steel Tubes

SS 304 Welded Pipe

ERW Carbon Steel Tubes

SS 304 Welded Pipe

DOM Carbon Steel Tubes

SS 304 EFW Pipe

Cold Drawn Seamless Carbon Steel Tubes


Carbon Steel Tube Forms

Carbon steel tubes are supplied in round, square, and rectangular forms.

Round Carbon Steel Tube

Round Carbon Steel Tubes

Square Carbon Steel Tube

Square Carbon Steel Tubes

Rectangular Carbon Steel Tube

Rectangular Carbon Steel Tubes

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Carbon Steel Tube Industrial Applications

Carbon steel tubes serve 3 major application in the industrial sector.

Boiler & Heat Exchanger Tubes

ASTM A179 and A192 carbon steel tubes transfer heat in boilers, condensers, economisers, and feedwater heaters in thermal power plants.

Oil & Gas Industry Tubes

These tubes handle process fluid lines, instrument tubing, and downhole applications where corrosion stays within limits for low-carbon grades.

Structural & Mechanical Tubes

Carbon steel tubes provide load-bearing capacity in building frames, conveyor systems, and chassis components.

Carbon Steel Tubes vs Stainless Steel Tubes

The key differences between CS tubes and SS tubes are listed in the table below.

Property Carbon Steel Tubes Stainless Steel Tubes
Cost Lower (₹60-120/kg) Higher (3-5x CS price)
Tensile Strength 325 MPa (47 ksi) for A179 515 MPa (75 ksi) for 304
Corrosion Resistance Limited; needs coating Excellent in acids and chlorides
Weldability Excellent Good; controlled heat input needed

Grades of Carbon Steel Tubes

ASTM A179 Boiler Tubes: Low-carbon seamless cold-drawn tubes designed for heat exchangers and condensers. These tubes provide excellent heat transfer, uniform structure, and good machinability.

ASTM A192 Boiler Tubes: Seamless carbon steel tubes for high-pressure service. These tubes are commonly used in boilers and provide strength, durability, and resistance to high temperatures.

ASTM A210 Boiler Tubes: Medium-carbon seamless tubes for high-temperature and high-pressure boiler applications. They offer improved mechanical strength, toughness, and reliable performance in demanding conditions.

Shipping & Packaging

Main export packaging setup Heavy-duty wooden boxes Packing
Export Packaging Standard

We strictly follow seaworthy export handling standards to protect carbon steel tubes from transit damage, moisture ingress, and surface contamination during long-distance dispatch.

  • Heavy-duty wooden boxes with moisture barrier lining
  • HDPE stretch film wrapping on all bundles
  • Plastic end caps on threaded and plain-end pipes
  • Silica gel desiccants to minimize moisture exposure
  • ISPM-15 fumigated wooden packaging for export
shipping preparation Pipe Bundle Yard Staging
Shipping packaging Container End-Cap Protection
Shipping stock Wrapped Export-Ready Bundles

We Export Worldwide

Sachiya Steel International supplies Carbon steel products to major industrial markets across North America, Europe, the Middle East, Asia and Africa with export-ready documentation and logistics support.

  • USA flagUSA
  • Canada flagCanada

Frequently Asked Questions:

What is a Carbon Steel Tube made of? +
Carbon steel tubes per ASTM A179 / ASME SA-179 contain 0.06-0.18% carbon and 0.27-0.63% manganese, with phosphorus and sulfur capped at 0.035% max.
What are the grades of Carbon Steel Tubing? +
Main carbon steel tube grades are ASTM A179 for heat exchangers, A192 for boiler tubes, and A210 for superheater tubes.
Why is Carbon Steel used in boiler tubes? +
Carbon steel is selected for boiler tubes because it offers good heat transfer capabilities, maintains strength at elevated temperatures, and is easy to weld. ASTM A192 is the primary standard for high-pressure boiler tube service.
What is the price of Carbon Steel Tubes per kg? +
Prices range from ₹60-120 per kg in India and $0.50-$3.00 per kg internationally. Contact us for current rates.
What sizes are Carbon Steel Tubes available in? +
We supply OD from 6.35 mm (1/4") to 219.1 mm (8"), wall thickness from 0.89 mm to 20 mm, and lengths of 6m, 6.1m, or custom cut-to-length.
What is the difference between Carbon Steel Tubes and Carbon Steel Pipes? +
Tubes are specified by outside diameter and wall thickness with tighter tolerances, while pipes use nominal pipe size (NPS) and schedule. Carbon steel tubes serve heat exchangers and mechanical applications; carbon steel piping handles fluid transport.
Who manufactures Carbon Steel Tubes in India? +
Sachiya Steel International is a leading carbon steel tubes manufacturer in India, supplying seamless and welded tubes with mill test certificates and IBR approval.

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