Astm A213 T22 Seamless Alloy Pipe - China

ASTM A213 T22 Seamless Ferritic and Austenitic Alloy-Steel

Boiler, Superheater, Heat-Exchanger Tubes.

Grades containing the letter H in their designation have

requirements different from those of similar grades not

containing the letter H.

These different requirements provide higher creep-rupture

strength than normally achievable in similar grades without

these different requirements.

ASTM A213 T22 tubes shall be

made by the seamless process and shall be either hot

finished or cold finished, as specified.

Grade TP347HFG

shall be cold finished.

Heat treatment shall be done

separately and in addition to heating for hot forming.

The

ferritic alloy and ferritic stainless steels shall be

reheated.

On the other hand, austenitic stainless steel

tubes shall be furnished in the heat-treated condition.

Alternatively, immediately after hot forming, while the

temperature of the tubes is not less than the minimum

solution temperature, tubes may be individually quenched in

water or rapidly cooled by other means.

Tension test,

hardness test, flattening test, and flaring test shall be

done to each tube.

Also, each tube shall be subjected to the

nondestructive electric test or hydrostatic test.

ASTM A209 Through A213

Other standard specifications include the categories of A209

seamless carbon-molybdenum alloy-steel boiler and

superheater tubes; A210 seamless medium-carbon steel boiler

and superheater tubes and A213 seamless ferritic and

austenitic steel boiler, superheater and heat-exchanger

tubes.

Piping wall thicknesses range from 1/2 inch to 5 inches.

A213 grades also have the letter H or M assigned, which

changes the composition and specifications for that series.

This abstract is a brief summary of the referenced standard.

It is informational only and not an official part of the

standard; the full text of the standard itself must be

referred to for its use and application.

ASTM does not give any warranty express or implied or make

any representation that the contents of this abstract are

accurate, complete or up to date.

Company Contact:

• Posted By: Sunny Steel Eneterprise Ltd.

• Phone: 00862133780199

• Address: No. 273, Siping Road, Shanghai, Shanghai , Shanghai , China

• Email:

• Website: https://www.sunnysteel.com

• Business Description: Sunny Steel provide a wide range of steel products as Steel pipes, Seamless tube and seamless pipes, Alloy pipes, Pipe fittings, Composite steel pipe used in the construction industry.
  
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