ASTM A106 Grade A Carbon Steel Pipe
ASTM A106 Grade A Carbon Steel Pipe
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Specifications and Dimensions

Outer Diameter: 10.29 - 609.60 mm ( NPS ⅛″ - NPS 24″ )

Wall Thickness: 1.24 - 59.54 mm ( Sch 10 - 160, STD, XS, XXS )

Length: 3,000.0 - 12,000.0 mm

Customization is available.

Standard: ASTM A106 / A106M

Grade: Grade A

All products undergo rigorous inspection and testing before leaving the factory, and mill test certificates are provided.

The third party test (such as SGS, BV, etc.) can be added as required.

Rust Removal,Painting,Coating

Custom dimensions, precision cutting, threading, bending, bevel cutting, heat treatment, etc

Packaging: Steel-strap bundling, standard export packaging for ocean freight, or packaging as required.

MOQ: 5 tons.

Delivery Time: 15 - 20 days

Payment Terms: T/T, L/C.

You can contact us in the following ways to learn more about our products.
info@chinacarbonsteel.com
+8615837212056
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Related Technical Resources

ASTM A106 Seamless Carbon Steel Pipe Dimensions.pdf

What is ASTM A106 Grade A Carbon Steel Pipe?

ASTM A106 Grade A carbon steel pipes are seamless carbon steel pipes that comply with the ASTM A106/A106M standard. They feature reliable high-temperature performance, good weldability, excellent machinability, and reliable pressure resistance, making them suitable for medium- and low-pressure, high-temperature fluid conveyance systems in the oil and gas, petrochemical, power generation, boiler, and industrial piping industries.

As a basic, cost-effective seamless steel pipe product, it maintains stable performance under long-term high-temperature service conditions and meets the piping requirements of power generation, petrochemical, heat exchange, and general industrial engineering projects. It serves as a seamless carbon steel solution that combines economy and reliability for low- and medium-pressure, high-temperature industrial piping projects.

We supply ASTM A106 Grade A carbon steel pipes in a full range of specifications, featuring consistent quality and outstanding value for money. Each batch comes with a complete factory test report and supports third-party inspections by organizations such as SGS and BV, meeting general engineering acceptance and export standards. We also provide one-stop value-added processing services, including custom cutting, end finishing, bending, surface treatment, and cutting to length.

Specifications and Dimensions

# Product Name ASTM A106 Grade A Carbon Steel Pipe
1 Standard Specification ASTM A106 / A106M ( Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service )
2 Steel Grade Grade A
3 Cross-sectional Shape Round
4 Material Carbon Steel
5 Manufacturing Process Seamless
6 Outside Diameter 10.29 - 609.60 mm ( NPS ⅛″ - NPS 24″ )
7 Wall Thickness 1.24 - 59.54 mm ( Sch 10 - 160, STD, XS, XXS )
8 Length 3,000.0 - 12,000.0 mm
9 Surface Treatment Rust Removal,Painting,Coating
10 Machining Services Custom dimensions, precision cutting, threading, bending, bevel cutting, heat treatment, etc
11 Inspection Dimensional inspection, chemical composition analysis, mechanical property analysis, hydrostatic testing (optional), non-destructive testing (optional), third-party inspection (optional, such as SGS, BV, etc.)
11 Certificate Mill Test Certificate (MTC / EN 10204-3.1)
12 MOQ 5 tons
13 Delivery Time 15 - 20 days
14 Packaging Steel-strap bundling, standard export packaging for ocean freight, or packaging as required
15 Place of Origin China

Note: We offer customization for products with special specifications and sizes.

Chemical Composition

ElementsCMnPSSiCrCuMoNiV
Content ( wt % )≤ 0.250.27 - 0.93≤ 0.035≤ 0.035≥ 0.10≤ 0.40≤ 0.40≤ 0.15≤ 0.40≤ 0.08

Mechanical Properties

Yield StrengthTensile StrengthElongation in 2 in. [50 mm]
Transverse strip test specimen,
and small-diameter full-section test specimen		Standard round test specimen
LongitudinalTransverseLongitudinalTransverse
≥ 205 MPa [30,000 psi]≥ 330 MPa [48,000 psi]≥ 35 %≥ 25 %≥ 28 %≥ 20 %

Characteristics and Advantages

Excellent High-Temperature Performance

Suitable for transporting high-temperature media; maintains good strength and stability even at higher operating temperatures. Particularly suitable for pipelines carrying steam, hot oil, and high-temperature process media.

Good Strength and Toughness

Features reliable tensile strength and yield strength, with good structural stability under operating conditions with significant pressure and temperature fluctuations.Compared to higher strength grades, Grade A has a slightly lower strength level but offers excellent overall ductility and toughness.

Seamless Construction with Reliable Pressure-Bearing Capacity

Typically manufactured using a seamless process, it has no potential weak points such as weld seams, making it suitable for high-pressure fluid transport and applications with stringent requirements for pipeline integrity.

Good Weldability

With moderate carbon content, it offers good weldability, facilitating pipeline installation, butt welding, and on-site construction, and provides good adaptability for complex piping systems.

Good Machinability

It can be cut, bent, turned, and grooved, meeting the engineering application requirements for various sizes and connection types.

Cost-Effective

Compared to some alloy steel pipes, it has lower material and processing costs, offering good cost-effectiveness.

Applications

Oil and Natural Gas Pipelines

High-temperature transmission pipelines used for crude oil, natural gas, and associated gas; commonly found in process piping systems at refineries and petrochemical plants.

Refining and Chemical Industry Pipelines

Used in high-temperature process piping, heat exchanger connecting pipes, and process medium transmission systems; suitable for steam, petroleum products, and other high-temperature media in refining and chemical production.

Steam Piping for the Power Generation Industry

Used for steam lines, feedwater lines, and auxiliary piping in thermal power plants; suitable for high-temperature, high-pressure steam transport systems.

Boiler and Pressure System Piping

Used for high-temperature fluid piping in boiler systems; also suitable for connecting certain pressure vessels and thermal equipment.

Heat Exchanger System Piping

Used as high-temperature fluid transport pipes, suitable for heat exchangers, furnaces, and related equipment. The seamless construction facilitates withstanding higher pressures and temperatures.

Industrial Fluid Transport Systems

Used in steam generation, transport, and distribution systems; particularly suitable for industrial piping networks with high requirements for high-temperature strength and operational reliability.

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Technical Manual

Technical Articles

FAQ

ASTM A106 Grade A seamless carbon steel pipes offer excellent cold formability and weldability, as well as stable basic pressure resistance.

They are easy to install, have moderate procurement costs, and provide high cost-effectiveness over their entire lifecycle.

These characteristics align well with the operating conditions of typical general industrial pipelines at ambient temperatures and low pressures, effectively avoiding performance redundancy and cost waste.

The key differences lie in carbon content, mechanical strength, and suitability for operating conditions:

Grade A: Lower carbon content, better ductility and weldability, but lower strength; suitable only for conventional low-temperature, low-pressure operating conditions;

Grade B: Higher carbon content and strength, with superior resistance to moderate temperatures and pressure; it has a broader range of applications and can meet the requirements of most mid-range industrial piping projects.

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