Pipe Matrial ASTM A 213 / A 213 M – 99a
ferritic alloy steels According to ASTM Code

This specification covers minimum wall-thickness, seamless ferritic and austenitic steel for boiler and superheater tubes.

SIZE RANGE

Diameter : 1/8 in. (3.2 mm) in inside diameter to 5 in. (127 mm) in outside diameter

Minimum wall thickness : 0.015 to 0.500 in. (0.4 to 12.7 mm)

MANUFACTURE

Tubes shall be made by the seamless process and shall be either hot finished or cold finished, as specified.
All tubes shall be heat-treated.

CHEMICAL REQUIREMENTS

TENSILE REQUIREMENTS

Grades Tensile strength
mini
Yield strength miniElongation mini (1)
in 2 in. or 50 mm
Brinell hardness
ksiMPaksiMPa%maxi
               

T2–T5–T5-T11–T17–T21–T22    
      T5b – T9     
          T12        
          T23        
          T91        
          T92        
         T122        

18 Cr – 2 Mo

 604153020530163
 604153020530179
 604153222030163
 745105840020220
 855856041520250
 906206444020250
 906205840020250
 604154027520217

(1) Basic minimum elongation for walls 5/16 in. (7.9 mm) and over in thickness, longitudinal strip tests, and for all small sizes
in full section.

GENERAL REQUIREMENTS

To specification ASTM A 450 / A 450 M-96a.

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