A178
Standard Specification for Electric-Resistance-Welded acier au carbone et carbone - manganèse acier chaudière et surchauffeur Tubes
A192 Standard Specification for carbone acier chaudière les Tubes sans soudure pour Service sous haute pression
1, composition chimique:
carbone, % 0.060.18
Manganese,%0.270.63
Phosphorus, max,%0.035
Sulfur, max,%0.035
Silicon, max,%0.25
A210Standard Specification for Seamless Medium-carbone acier chaudière et SuperheaterTubes
1 , Composition chimique:
A - 1C
carbone Max 0.270.35
Manganese 0.93Max0.29-1.06
phosphore, max 0.0350.035
Sulfur, max0.0350.035
Silicon0.10Min0.10 Min
