A178

Standard Specification for Electric-Resistance-Welded Carbon Steel and Carbon- Manganese Steel Boiler and Superheater Tubes

1, Chemical composition:

A192 Standard Specification for Seamless Carbon Steel Boiler Tubes for High-Pressure Service

1, Chemical composition:

Carbon,               %0.06--0.18

Manganese,          %0.27--0.63

Phosphorus, max,     %0.035

Sulfur, max,          %0.035

Silicon, max,          %0.25

A210Standard Specification for Seamless Medium-Carbon Steel Boiler and SuperheaterTubes1

1, Chemical composition:

A-1        C       

Carbon Max       0.27     0.35 

Manganese       0.93Max  0.29-1.06 

Phosphorus, max   0.035    0.035  

Sulfur, max      0.035    0.035 

Silicon          0.10Min 0.10 Min