... , GB/T8163 ,ASTM A53 ,ASTM A106 ,DIN1629 , API 5L Steel Grade GB/T8162 , GB/T8163:10#, 20#, 35#, 45#, 16MN(Q345B ... steel pipes for high-temperature service ASTM A 161 seamless low-carbon and carbon molybdenum steel still tubes for refinery service ... and condenser tubes. ASTM A179 specification for seamless cold-drawn low-carbon steel heat-exchanger ASTM A192 specification for seamless carbon ...