ASTM A213 Cold Drawn Seamless Alloy Steel Boiler Superheater and Heat Exchanger Tubes

ASTM A213 is a specification for seamless alloy steel tubes, intended for use in boilers, superheaters, and heat exchangers. These tubes are cold drawn and manufactured using high-quality alloy steel, making them suitable for high-temperature applications where strength and corrosion resistance are important factors.

Material

The material used in ASTM A213 tubes is a type of alloy steel that is specifically designed for high-temperature use. The composition of the material includes elements such as chromium, molybdenum, and nickel, which provide excellent corrosion resistance and high-temperature strength.

Specification

The specification for ASTM A213 tubes includes the following requirements:

• Size range: 1/8" - 3" (3.2mm - 76.2mm)
• Wall thickness: 0.015" - 0.500" (0.4mm - 12.7mm)
• Length: 6m - 12m (custom lengths available upon request)
• Heat treatment: annealing, normalizing, or quenching and tempering
• End finish: plain end, beveled end, or threaded end

Chemical Composition

The chemical composition of ASTM A213 tubes varies depending on the grade of steel used. Below is a table of the chemical composition of some of the common grades:

Mechanical Properties

The mechanical properties of ASTM A213

tubes are also dependent on the steel grade used. The following table provides a summary of the typical mechanical properties of some of the common grades:

Steel Grade

There are several steel grades available in ASTM A213, each with its own unique combination of properties. The most commonly used grades include T2, T5, T9, T11, T22, and T91.

Application

ASTM A213 tubes are widely used in various high-temperature applications, such as boilers, superheaters, and heat exchangers. These tubes are also commonly used in power generation, petrochemical, and oil and gas industries. The combination of high-temperature strength and corrosion resistance makes these tubes suitable for use in harsh environments.

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