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ASTM A1011

ASTM A1011 is the standard specification of carbon steel. This material is characterized by its physical properties, chemical composition, and mechanical properties. This standard covers seamless and welded steel pipes with various applications, including water supply, air conditioning, electrical conduit, pressure piping, and fire sprinkler systems.

What is ASTM A1011?

Welded steel pipe is covered in the ASTM A671/A672 standards, which specify that welds should be made to meet the requirements of ISO 4589. The ASTM A1011 standard specification covers carbon steel plates, sheets, strips, and bars produced by hot-rolled or cold-rolled processes. It also covers stainless steel plates and sheets produced by the hot-rolled or cold-rolled methods.

ASTM A1011 specifies plate materials’ chemical composition, mechanical properties, and test methods. It also provides minimum requirements for marking plates, sheets, and strips with designations indicating the type of steel (example: “C” for carbon), type of rolling process (“N” for normalizing), and identification number assigned to products produced from molten bath alloying processes such as electroslag remelting (ESR).


ASTM A1011 is a standard specification for steel. It defines three steel grades, further divided into several sub-grades. The first two grades are used for structural applications, and the third is used in high-temperature applications.

The three ASTM A1011 grades are:

  • High Strength Low Alloy (HSLA) Steel: HSLA steel is designed to have a strength of at least 50 ksi (350 MPa). This grade is commonly used in the automotive industry but can also be found in other sectors.
  • Low Carbon Steel: Low carbon steel consists of a minimum of 0.15% carbon by weight. It’s commonly used for its affordability and ease of recycling. It’s also used for many construction projects because it can be easily bent or formed into different shapes.
  • Stainless Steel: Stainless steel contains at least 10% chromium by weight, making it resistant to corrosion from most environmental conditions such as air or water contact.

ASTM A1011 Equivalent 

ASTM A1011 equivalent is a standard specification for steel, which defines and classifies the different steel types used in manufacturing. This standard is commonly used to describe the kind of steel used in structural applications.

The ASTM A1011 equivalent refers to a specific classification system that divides steels into four main groups:

  • Carbon Steel
  • Alloy Steel
  • Stainless Steel
  • Tool Steel

Each of these groups has its characteristics and properties that make it unique from the others.


ASTM A1011 is the standard specification of carbon Steel. It covers steel plates, welded pipe, cold rolled coils, and sheets, as well as hot rolled plates with minimum yield strength requirements (MPa). They are generally produced through a process known as extrusion, where metal material gets pushed through a die by hydraulic pressure instead of being cut or cast into shape.

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