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Home > Products > ASTM A213 alloy tube > ASTM A213 T21 Seamless alloy tube

ASTM A213 T21 Seamless alloy tube

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US$ 1000 - 6000 / Ton

10 Tons(Min. Order)

Port Shanghai
Payment TermsT/T L/C D/P D/A
Delivery Detail30 days

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Product Details

Place of Origin	China	Certification	BSI
Thickness	10, 30	Application	Hydraulic Pipe
Technique	Cold Drawn
Alloy Or Not	Is Alloy
Secondary Or Not	Non-secondary	Special Pipe	Thick Wall Pipe
Section Shape	Round	Outer Diameter	60, 300

Product Description

ASTM A213 T21 is the part of ASTM A213 Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, Heat-Exchanger Tubes.

ASTM A213 T21 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 T21tubes 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.

Chemical Composition(%) for ASTM A213 T21 Low Alloy Steel

UNS Designation	K31545
Carbon	0.05–0.15
Manganese	0.30–0.60
Phosphorus	0.025
Sulfur	0.025
Silicon	0.50–1.00
Nickel	…
Chromium	2.65–3.35
Molybdenum	0.80–1.06
Vanadium	…
Boron	…
Niobium	…
Nitrogen	…
Aluminum	…
Tungsten	…
Other Elements	…

Mechanical properties for ASTM A213 T21 Low Alloy Steel

Tensile strength(min)	415Mpa
Yield strength(min)	220Mpa
Elongation	30%
Delivery condition	annealed

ASTM A213 Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes

ASTM A213M-09 standard is issued under the fixed designation A 213/A 213M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

This standard is issued under the fixed designation A 213/A 213M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (′) indicates an editorial change since the last revision or reapproval.

ASTM A213 Chemical Composition