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 SuperheaterTubes

1, Chemical composition:

A-1C

Carbon Max 0.270.35

Manganese 0.93Max0.29-1.06

Phosphorus, max 0.0350.035

Sulfur, max0.0350.035

Silicon0.10Min0.10 Min