Specifications
Brand Name :
Jinxi Pipe
Model Number :
Alloy Steel Pipe
Certification :
ISO 9001,BV,SGS,TUV,CE
Place of Origin :
China
MOQ :
1
Price :
1500 USD/TON
Payment Terms :
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability :
100000
Delivery Time :
7 days
Packaging Details :
Bundles
Product Name :
Alloy Steel Pipe, Alloy Steel Tube, Seamless Alloy Steel Tube, Seamless Alloy Steel Pipe, Alloy Round Tube
Standard :
ASTM A213 T21 Alloy Steel Pipe
ASTM A213 T21 Tube Type :
Seamless
ASTM A213 T21 OD :
3.2-762mm
ASTM A213 T21 Thickness :
0.4-63.5mm
ASTM A213 T21 Length Range :
5.8/11.86 Meter, 20 FT (6 Meter), 40FT (12 Meter) Or Customized
ASTM A213 T21 Ends Type :
Beveled Ends, Plain Ends
ASTM A213 T21 Protection Caps :
Plastic Caps
Description

ASTM A213 T21 Alloy Steel Tube For Superheater and Reheater Sections in Boilers



Specification



ASTM A213 T21 is a seamless alloy steel tube designed for high-temperature applications in boilers, superheaters, and heat exchangers. It is a ferritic alloy steel containing chromium and molybdenum, known for its durability, creep strength, and oxidation resistance. The tubes are manufactured to a specified chemical composition, mechanical properties, and must undergo a heat treatment, such as full annealing, isothermal annealing, or normalizing and tempering.



American Standard Standard Name
A213 / A213M Seamless Ferritic and Austenitic Alloy-steel Boiler,Superheater and Heat-Exchanger Tubes


ASTM A213 T21 Alloy Steel Tube For Superheater and Reheater Sections in Boilers



ASTM A213 T21 Alloy Steel Pipe Chemical Composition

Sources American Standard A213 / A213M TABLE 1 Chemical Composition Limits, % , for Low Alloy Steel


Grade UNS
Designation
C Mn P S Si Cr Mo
T21 K31545 0.05-0.15 0.30-0.60 0.025 0.025 0.50-1.00 2.65-3.35 0.80-1.06



ASTM A213 T21 Alloy Steel Pipe Mechanical Properties

Sources American Standard A213 / A213M TABLE 4 Tensile and Hardness Requirements


Grade
Low Aloy Steels:
UNS
Designation
TensileStrength.
min, ksi
[MPa]
Yield Strength
,min, ksi
[MPa]
Elongationin 2 in. or 50 mm.
min, %B.C
HardnessA
Brinell/Vickers Rockwell
T21 K31545 60 [415] 30 [205] 30 163 HB/170 HV 85 HRB



ASTM A213 T21 Alloy Steel Pipe Heat Treatment

Sources American Standard A213 / A213M TABLE 3 Heat Treatment and Grain Size Requirements A


Grade
Ferritic Alloy Steels
UNS
Designation
Heat Treatment Type Subcritical Annealingor TemperingTemperature,min or range °F [°C]
T21 K31545 full or isothermal anneal -
normalize and temper 1250[675]



ASTM A213 T21 Alloy Steel Pipe Manufacturing Proces


ASTM A213 T21 Alloy Steel Tube For Superheater and Reheater Sections in Boilers


ASTM A213 T21 Alloy Steel Pipe Application

  • High-Temperature Boiler Sections
  • Petrochemical Heater Tubes
  • Service in Hydrogen Environments
  • Components Exposed to Sulfur Corrosion
  • General High-Temperature Pressure Tubing



ASTM A213 T21 Alloy Steel Pipe Packing & Loading


a. 1/2"-2"Plain end with black oil paint, caps both ends, bundles with loading belt.

b. 2"-4"Beveled end with black oil paint, caps both ends, bundles with loading belt.

c. 10"-20"Beveled end with black oil paint, caps both ends, loose packed in to container.

ASTM A213 T21 Alloy Steel Tube For Superheater and Reheater Sections in Boilers


→Alloy Steel Pipes is transported in containers

ASTM A213 T21 Alloy Steel Tube For Superheater and Reheater Sections in Boilers



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ASTM A213 T21 Alloy Steel Tube For Superheater and Reheater Sections in Boilers

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Brand Name :
Jinxi Pipe
Model Number :
Alloy Steel Pipe
Certification :
ISO 9001,BV,SGS,TUV,CE
Place of Origin :
China
MOQ :
1
Price :
1500 USD/TON
Contact Supplier
ASTM A213 T21 Alloy Steel Tube For Superheater and Reheater Sections in Boilers

Jinxi Steel Industry Group Co.Ltd.

Verified Supplier
1 Years
hunan, changsha
Since 1986
Business Type :
Manufacturer, Distributor/Wholesaler, Agent, Exporter, Trading Company, Seller
Total Annual :
10000000000-30000000000
Employee Number :
100~500
Certification Level :
Verified Supplier
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