ASTM A53 Grade B Carbon Steel Pipe
ASTM A53 Grade B Carbon Steel Pipe
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Specifications and Dimensions

Outer Diameter: 10.29 - 660.40 mm ( NPS ⅛″ - NPS 26″ )

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 A53/A53M

Grade: Grade B

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

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

Surface Treatment: Black ( Bare ),Coating,Galvanizing

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 A53/A53M - 24.pdf

What is ASTM A53 Grade B Carbon Steel Pipe?

ASTM A53 Grade B is the most widely used general-purpose carbon steel pipe under the ASTM A53/A53M standard, covering Type S (seamless) and Type E (ERW, electric resistance welded), and is available with a black bare surface or a hot-dip galvanized coating.

ASTM A53 Grade B carbon steel pipes are specifically designed for pressure and mechanical applications. They offer good weldability and formability (coiling, bending, flanging) and are widely used in low- and medium-pressure fluid conveyance, fire sprinkler systems, compressed air, water, and natural gas pipelines, as well as general mechanical structures.

The ASTM A53 Grade B carbon steel pipes we supply strictly comply with the chemical composition and mechanical property requirements of the ASTM A53/A53M standard. Each shipment is accompanied by a complete EN 10204-3.1 Manufacturer’s Test Certificate (MTC) and supports third-party inspection (SGS, BV, etc.).

We also offer custom processing services such as cutting, end finishing, bending, epoxy coating, and fusion-bonded epoxy (FBE) lining.

Specifications and Dimensions

# Product Name ASTM A53 Grade B Carbon Steel Pipe
1 Standard Specification ASTM A53/A53M ( Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless )
2 Steel Grade Grade B
3 Cross-sectional Shape Round
4 Material Carbon Steel
5 Manufacturing Process Seamless,Welded
6 Outside Diameter 10.29 - 660.40 mm ( NPS ⅛″ - NPS 26″ )
7 Wall Thickness 1.24 - 59.54 mm ( Sch 10 - 160, STD, XS, XXS )
8 Length 3,000.0 - 12,000.0 mm
9 Ends Flat, beveled, threaded
10 Surface Treatment Black ( Bare ),Coating,Galvanizing
11 Machining Services Custom dimensions, precision cutting, threading, bending, bevel cutting, heat treatment, etc
12 Inspection Dimensional inspection, chemical composition analysis, mechanical property analysis, hydrostatic testing (optional), non-destructive testing (optional), third-party inspection ( optional, SGS, BV, etc )
13 Certificate Mill Test Certificate ( MTC, EN 10204-3.1/3.2 )
14 MOQ 5 tons
15 Delivery Time 15 - 20 days
16 Packaging Steel-strap bundling, standard export packaging for ocean freight, or packaging as required
17 Place of Origin China

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

Chemical Composition

ElementsCMnPSCuNiCrMoV
Type S ( wt % )≤ 0.30≤ 1.20≤ 0.05≤ 0.045≤ 0.40≤ 0.40≤ 0.40≤ 0.15≤ 0.08
Type E ( wt % )≤ 0.30≤ 1.20≤ 0.05≤ 0.045≤ 0.40≤ 0.40≤ 0.40≤ 0.15≤ 0.08

Mechanical Properties

Tensile StrengthYield StrengthElongation in 2 in. [50 mm]
≥ 415 MPa [60,000 psi]≥ 240 MPa [35,000 psi]Determined based on the pipe diameter, wall thickness, and test specimen requirements.

Characteristics and Advantages

Industrial Piping

Reliable Strength, Meeting Common Industrial Piping Requirements

With a minimum yield strength of 240 MPa and a minimum tensile strength of 415 MPa—exceeding the requirements of ASTM A53 Grade A—it is suitable for a wide range of conventional mechanical and piping applications.

Pipe Welding

Excellent Weldability and Formability

It can be welded, cut, bent, and flanged according to product type, dimensions, and fabrication processes, facilitating pipe prefabrication, on-site installation, and system connections.

Gas Pipeline

Wide Range of Applications

Suitable for water, steam, air, and gas pipelines, as well as mechanical, structural, and general pressure-bearing applications that meet design requirements. Ideal for building facilities, industrial plants, and public utility projects.

Steel Pipe Production Shop

Flexible Manufacturing Options

Seamless or resistance-welded pipes can be selected based on specifications and supply conditions, facilitating a balanced approach between performance requirements, procurement budgets, and project deadlines.

ASTM A53 Grade B Galvanized Steel Pipe

Choice of Black Pipe or Hot-Dip Galvanized Pipe

Black pipe is suitable for painting or other corrosion-resistant treatments as required by the environment; hot-dip galvanized pipe enhances corrosion resistance in appropriate environments through its zinc coating, helping to extend the service life of the piping.

Value for the money

Established Supply Chain and Good Overall Cost-Effectiveness

As a widely used and common pipe grade, it features well-established specifications and supply channels, facilitating standardized procurement, piping coordination, and project cost management.

Applications

Industrial Fluid Conveyance Piping

1) Conveyance of water, air, and other suitable non-corrosive fluids in industrial settings;

2) Piping for connecting industrial equipment;

3) General process pipelines and auxiliary piping.

Building Plumbing and Water Supply Systems

1) Internal water supply piping within buildings;

2) Piping systems for commercial and industrial buildings;

3) General utility water transmission pipelines.

Fire Protection Piping Systems

1) Automatic sprinkler systems;

2) Fire protection water supply lines;

3) Fire protection piping networks in commercial buildings and industrial plants.

Auxiliary Piping for Oil, Natural Gas, and Energy Facilities

1) Utility pipelines for oil refineries and chemical plants;

2) Compressed air and auxiliary fluid lines;

3) Certain auxiliary systems in power plants and energy facilities.

Machinery Manufacturing and Steel Structures

1) Equipment supports and tubular components;

2) Industrial equipment frames;

3) General mechanical structures and support components.

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Technical Manual

Technical Articles

FAQ

The main differences between the two lie in carbon content and strength grades:

A53 Grade A: Has a lower carbon content, with relatively lower tensile strength and yield strength, but better ductility. It is suitable for general strength requirements and is the preferred choice for certain cold-forming and coiled applications.

A53 Grade B: Has a slightly higher carbon content, resulting in higher tensile strength and yield strength. It is suitable for general piping and mechanical applications with higher strength requirements and is more widely used.

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