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ASTM A192

ASTM A192 is a kind of carbon seamless tubes, which is widely designed for high or low pressure seamless carbon steel boilers and superheater tubes. ASTM A 192 is American Society for testing materials standard; ASME SA192 is American society of mechanical engineers standards. ASTM A 192 covers standard specifications for minimum-wall-thickness, seamless carbon steel boiler and superheater tubes for high-pressure service. The steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, and silicon. The tubes shall have a hardness number not exceeding a specific value. The following mechanical tests shall be conducted, namely: flattening test; flaring test; hardness test; and hydrostatic test.

ASTM A192 Boiler Pipe
ASTM A192 boiler pipe

Specifications:
OD (mm) Wall Thickness (mm)
  2 2.5 3 3.5 4 4.5 5 6 6.5-7 7.5-8 8.5-9 9.5-10 11 12
Φ25-Φ28                
Φ32                
Φ34-Φ36                
Φ38                
Φ40                  
Φ42                  
Φ45                
Φ48-Φ60              
Φ63.5              
Φ68-Φ73                
Φ76        
Φ80        
Φ83        
Φ89        
Φ95        
Φ102        
Φ108        
Φ114          
Φ121          
Φ127          
Φ133          
Φ140            
Φ146            
Φ152            
Φ159            
Φ168            


Seamless Carbon Steel Boiler Tubes

Applications:

For seamless carbon steel boiler and superheater tubes for high-pressure settings.

Size (mm):

O.D.: 28∼168; W.T.: 2∼30; L: max 12000


Grade and Chemical Composition (%)

Chemical Composition

C

Mn

P≤

S≤

Si≤

0.06-0.18

0.27-0.63

0.035

0.035

0.25


SA-450/SA-450M:


OD In (mm)

+

-

WT In (mm)

+

-

<1(25.4)

0.10

0.10

≤1.1/2(38.1)

20%

0

1∼1.1/2(25.4∼38.1)

0.15

0.15

>1.1/2(38.1)

22%

0

>1.1/2∼<2(38.1∼50.8)

0.20

0.20

 

 

 

2∼<2.1/2(50.8∼63.5)

0.25

0.25

 

 

 

2.1/2∼<3(63.5∼76.2)

0.30

0.30

 

 

 

3∼4(76.2∼101.6)

0.38

0.38

 

 

 

>4∼7.1/2(101.6∼190.5)

0.38

0.64

 

 

 

>7.1/2∼9(190.5∼228.6)

0.38

1.14

 

 

 




Brinell Hardness Number
(WT≥)0.200In(5.1mm)

Rockwell Hardness Number

(WT)0.200In(5.1mm)

137HRB

77HRB

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