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ASTM A53 is a carbon steel alloy, used as structural steel or for low-pressure plumbing. The alloy specifications are set by ASTM International, in specification ASTM A53/A53M.[1]
A53 pipe comes in three types and two grades, A53 Type F, which is longitudinally furnace butt welded or continuous welded (Grades A and B), A53 Type E, which is longitudinally electric resistance welded (Grades A and B), and A53 Type S, which is seamless pipe, produced by hot working, and possibly cold finishing, the steel (Grades A and B). ASTM A53 pipe is sized according to the nominal pipe size (NPS) system. It is commonly available with national pipe thread ends or with plain cut ends. It can be used for steam, water, and air conveyance. It is also weldable and can be used in structural applications, although ASTM A500 tube, which is available in the same NPS sizes, is sometime preferred.[2]
This is a standard set by the standards organization ASTM International, a voluntary standards development organizations that sets technical standards for materials, products, systems, and services.[3]
ASTM A53 Standard- 06A - HYSP
1. Scope of ASTM A53 Standard
ASTM A53 is standard specification for pipe, steel, black and hot dipped, zinc-coated, welded and seamless. This specification covers seamless and welded black and hot-dipped galvanized steel pipe in NPS 1'8 to NPS 26 [DN 6 to DN 650] (Note 1), inclusive, with nominal wall thickness (Note 2) as given in Table X2.2 and Table X2.3. It shall be permissible to furnish pipe having other dimensions provided that such pipe complies with all other requirements of this specification. Supplementary requirements of an optional nature are provided and shall apply only when specified by the purchaser.
2. Application of ASTM A53 Standard Pipes
Steel Pipes ordered under this specification is intended for mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas, and air lines. It is suitable for welding, and suitable for forming operations involving coiling, bending, and flanging.
3. Types and Grades
This specification covers the following types and grades:
3.1 Type F'Furnace-butt-welded, continuous welded Grades A and B.
3.2 Type E'Electric-resistance-welded, Grades A and B,
3.3 Type S'Seamless, Grades A and B.
Note:
Type F is not intended for flanging.
If Type S or Type E is required for close coiling or cold bending, Grade A is the preferred grade; however, this is not intended to prohibit the cold bending of Grade B pipe.
Type E is furnished either nonexpanded or cold expanded at the option of the manufacturer.
4. Materials and Manufacture of ASTM A53 Pipes
4.1 The steel for both seamless and welded pipe shall be made by one or more of the following processes: open-hearth, electric-furnace, or basic-oxygen.
4.2 If steels of different grades are sequentially strand cast, identification of the resultant transition material is required. The steel producer shall remove the transition material by any established procedure that positively separates the grades.
4.3 The weld seam of electric-resistance welded pipe in Grade B shall be heat treated after welding to a minimum of °F [540 °C] so that no untempered martensite remains, or otherwise processed in such a manner that no untempered martensite remains.
4.4 When pipe is cold expanded, the amount of expansion shall not exceed one and one-half percent (1-1'2%) of the specified outside diameter of the pipe.
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APPLICATIONS
ASTM A53 pipeline is planned for mechanical as well as pressure applications and is also appropriate for ordinary usages in vapor, water, gas and also air lines.
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References
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If you're in the market for galvanized pipes, you may have heard references to ASTM standards. But what are these standards, and what do they mean for your galvanized pipe purchase? In this article, we'll explore some of the most common questions about ASTM standards for galvanized pipes.
What is the ASTM standard for galvanized pipe?
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The American Society for Testing and Materials (ASTM) has developed a set of standards for galvanized pipes. These standards ensure that galvanized pipes are produced and tested to meet certain specifications, including strength, corrosion resistance, and durability.
The most commonly referenced ASTM standard for galvanized pipes is ASTM A53. This standard covers seamless and welded black and hot-dipped galvanized steel pipes in nominal sizes ranging from 1/8 to 26 inches. In addition to ASTM A53, there are other ASTM standards for galvanized pipes, including ASTM A123, ASTM A153, and ASTM A106.
Is ASTM A53 galvanized pipe?
ASTM A53 covers both black and hot-dipped galvanized pipes. However, it's important to note that not all pipes that meet ASTM A53 standards are galvanized. You'll need to look for additional specifications to ensure that the pipe you're purchasing is galvanized. To be considered galvanized, a pipe must be coated with a layer of zinc to protect it from corrosion. This process is known as hot-dip galvanizing.
What is the difference between ASTM A53 and A106?
ASTM A53 and ASTM A106 both cover seamless carbon steel pipes. However, ASTM A53 is intended for pressure and mechanical applications, while ASTM A106 is intended for high temperature service. ASTM A53 is commonly used for water and gas lines, while ASTM A106 is used for high temperature applications such as refineries and power plants.
In conclusion, if you're looking for galvanized pipes, it's important to ensure that they meet the appropriate ASTM standards. ASTM A53 is the most commonly referenced standard for galvanized pipes, but be sure to check for additional specifications to ensure that the pipe you're purchasing meets your needs. By understanding the differences between ASTM standards, you can make an informed decision about which galvanized pipe is right for your project.
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