Seamless Pipe

MS & Carbon Steel Seamless Pipe

Featured Specification

200NB Seamless Pipe — SCH 40

₹3,966/- per meter

Indicative price for the above specification. Final price may vary based on grade, quantity, length, origin and current market conditions. Contact us for a quotation.

Seamless Steel Industries supplies and stocks seamless pipes in Mild Steel (MS), Carbon Steel (CS) and related non-alloy steel grades for industrial, engineering, process, oil & gas, petrochemical, power, infrastructure and general piping applications.

A seamless pipe is manufactured without a longitudinal welded joint. Depending on the applicable specification, grade, size and application, seamless pipes may be supplied in hot-finished, cold-finished or cold-drawn conditions.

We supply MS seamless pipe, mild steel seamless pipe, carbon steel seamless pipe and CS seamless pipe in a wide range of outside diameters, wall thicknesses, schedules and lengths according to applicable ASTM, ASME, API, IS and EN specifications.

Carbon Steel Seamless Pipe

Carbon steel seamless pipe is widely used for industrial piping systems where the specified material requires seamless construction, controlled mechanical properties and suitability for the intended service conditions.

Common carbon steel seamless pipe requirements include:

• ASTM A106 seamless pipe
• ASTM A53 seamless pipe
• API 5L seamless pipe
• IS 1239 pipe
• IS 1161 steel tube
• IS 1978 / IS 1979 line pipe
• EN / DIN carbon steel pipe and tube
• ST35 and ST52 steel pipe and tube requirements

The actual grade and specification should be selected according to the application, design conditions and project requirements.

MS Seamless Pipe

MS seamless pipe and mild steel seamless pipe are commonly used terms in the Indian industrial and engineering market.

Depending on the requirement, MS seamless pipe may be supplied according to a specified Indian, ASTM, API or EN standard rather than being identified only by the general term “MS pipe.”

Common requirements include:

• MS seamless pipe
• Mild steel seamless pipe
• MS carbon steel seamless pipe
• Carbon steel seamless pipe
• CS seamless pipe
• Low carbon steel seamless pipe
• Seamless steel pipe

For procurement, the required grade, standard, size, thickness or schedule, length and quantity should be specified so that the correct material can be sourced.

Seamless Pipe Grades

Standard	Common Grades / Designations
ASTM A106	Grade A, Grade B, Grade C
ASTM A53	Grade A, Grade B
API 5L	Grade B, X42, X52, X60, X65, X70
IS 1239	Light, Medium, Heavy
IS 1161	Applicable structural grades
IS 1978 / IS 1979	Applicable line-pipe grades
EN / DIN	E235, E355, ST35, ST52 and related grades

Grade availability depends on size, specification, quantity, manufacturing route and current sourcing requirements.

ASTM A106 Gr B Seamless Pipe

ASTM A106 Gr B seamless pipe is a carbon steel pipe grade specified for high-temperature service and is widely used in industrial piping and process applications.

A106 Gr B seamless pipe can be sourced in different nominal sizes, outside diameters, wall thicknesses, schedules and lengths, subject to the applicable specification and availability.

Typical procurement requirements include:

• ASTM A106 Gr B
• ASME SA106 Gr B
• Seamless construction
• Required nominal size or outside diameter
• Schedule or wall thickness
• Required length
• Quantity
• Inspection and documentation requirements

Seamless Pipe Sizes

Seamless pipes are available in a wide range of nominal sizes and outside diameters.

Common requirements include:

1/2 inch, 3/4 inch, 1 inch, 1-1/4 inch, 1-1/2 inch, 2 inch, 2-1/2 inch, 3 inch, 4 inch, 5 inch, 6 inch, 8 inch, 10 inch, 12 inch, 14 inch, 16 inch, 18 inch, 20 inch, 24 inch and larger sizes.

Availability of particular sizes depends on the required material specification, wall thickness, manufacturing method and quantity.

Seamless Pipe Schedule and Thickness

Seamless pipes can be supplied in various wall thicknesses and schedules according to the applicable dimensional standard.

Common schedule requirements include:

• SCH 5 / 5S
• SCH 10 / 10S
• SCH 20
• SCH 30
• SCH 40
• SCH STD
• SCH 60
• SCH 80 / 80S
• SCH 100
• SCH 120
• SCH 140
• SCH 160
• XXS

The actual wall thickness corresponding to a schedule varies according to the nominal pipe size and applicable dimensional standard.

Seamless Pipe Manufacturing

Depending on the applicable product specification, seamless pipes and tubes may be supplied in different manufacturing conditions.

Hot Finished Seamless Pipe

Hot-finished seamless pipes are manufactured through hot-working processes and are commonly used for industrial, pressure and engineering applications.

Cold Finished Seamless Pipe

Cold finishing can provide improved dimensional control and surface characteristics where required by the applicable product specification.

Cold Drawn Seamless Tube

Cold-drawn seamless tubes are used where tighter dimensional requirements and specific mechanical properties are required.

Manufacturing process, heat treatment, testing and dimensional tolerances depend on the applicable material specification.

Seamless Pipe Standards

Seamless pipe requirements may be supplied according to applicable international and Indian standards, including:

• ASTM A106
• ASTM A53
• API 5L
• IS 1239
• IS 1161
• IS 1978
• IS 1979
• EN 10216 and related EN specifications

The applicable standard should be confirmed based on the intended service and project specification.

Need help comparing pipe standards? Read our guide to ASTM A106 vs ASTM A53 vs API 5L to understand the key differences in grades, specifications and typical applications.

Seamless Pipe Applications

MS and carbon steel seamless pipes are used across a wide range of industries and applications, including:

• Oil & Gas
• Refineries
• Petrochemical Plants
• Power Generation
• Chemical Plants
• Process Industries
• Boiler Systems
• Steam Lines
• Pressure Piping
• Hydraulic Systems
• Engineering Industries
• Industrial Fluid Transfer
• Infrastructure Projects
• Mechanical Applications
• Water and Utility Systems

The correct pipe grade and specification should always be selected according to the service conditions and applicable engineering requirements.

Seamless Pipe Documentation

Depending on the material specification and purchase requirement, documentation and inspection requirements may include:

• Mill Test Certificate (MTC)
• Heat Number and Material Traceability
• Chemical Composition
• Mechanical Test Results
• Dimensional Inspection
• Hydrostatic Test
• Third-Party Inspection
• EN 10204 3.1 documentation where applicable
• Project-specific inspection documentation

Documentation requirements should be confirmed at the time of enquiry.

Seamless Pipe Supply

Seamless Steel Industries supplies and sources MS seamless pipe, carbon steel seamless pipe, mild steel seamless pipe and related steel piping products for industrial and project requirements.

Material can be arranged according to requirements for:

• Grade
• Standard
• Size
• Schedule
• Wall Thickness
• Length
• Quantity
• Origin
• Manufacturer / Make
• Inspection
• Documentation

Ready-stock availability depends on current inventory. Non-stock and project-specific requirements can be sourced subject to specification, quantity, manufacturer availability and project requirements.

Request a Seamless Pipe Quotation

For a seamless pipe enquiry, provide the following details:

Pipe Size:
Schedule / Thickness:
Grade:
Standard:
Quantity:
Required Length:
Make / Origin:
MTC / Inspection Requirement:

Seamless Steel Industries can check the applicable material, availability and commercial requirements based on your specification.