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Boiler & Heat Exchanger Steel Tubes

Home » Products » Boiler & Heat Exchanger Steel Tubes » ASTM A178 Supper Heater Steel Tubes and Pipes

ASTM A178 Supper Heater Steel Tubes and Pipes
  • The name :

    ASTM A178 Supper Heater Steel Tubes and Pipes

  • Product Description
  • Applications: for Boilers,Superheaters,Heat-Exchangers, Condensers

    Size range: O.D.:6-168mm W.T.:1-15mm L: according to customer requirement
  • Model : ASTM A178
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Instruction

ASTM A178 Electric resistance welded carbon steel and carbon mangaese steel boiler and superheater tubes
Applications: for Boilers,Superheaters,Heat-Exchangers, Condensers                    
Size range: O.D.:6-168mm     W.T.:1-15mm      L: according to customer requirement                    

Steel Grade and Chemical Compositions:
Element Grade A, 
Low-Carbon Steel
Grade C, 
Medium-Carbon Steel
Grade D, 
Carbon-Manganese 
Steel 
Carbon 0.06-0.18 0.35 max 0.27 max
Manganese 0.27-0.63 0.80 max 1.00-1.50
Phosphorus, max 0.035  0.035 0.030 
Sulfur, max 0.035  0.035 0.015 
Silicon - - 0.10 min

 

Mechanical Properties Grade A Grade C Grade D
Tensil Streghth: min ksi[Mpa]  47[325] 47[415] 70[485]
Yield Point:        min ksi[Mpa]  26[180] 37[255] 40[275]
Elongation:          ≥35% ≥30% ≥30%

 

Tolerance for OD and WT(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''(25.4~38.1) 0.15  0.15  >1.1/2''(38.2) 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 

 

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