ASTM A192 ----- American Society for Testing Materials standard
ASME SA192 --- American Society of Mechanical Engineers standards
High-pressure seamless carbon steel boiler tubes purposes:
Generally used for high-pressure boiler (working pressure does not exceed 9.8Mpa and the working temperature between 450 ℃ -650 ℃) heating surface tubes, header, economizer, superheater, reheater. (P <9.8MPa, 450 ℃ <T <650 ℃), often for Seamless Carbon Steel Boiler and Superheater pipe of high pressure with a minimum wall thickness. Carbon steel boiler tubes grade: A192