ASTM A106-02a pdf free.Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service. This specification covers seamless carbon steel pipe for high-temperature service (Note 1) in NPS 1/8 to NPS 48 inclusive, with nominal (average) wall thickness as given in ANSI B 36.10. It shall be permissible to furnish pipe having other dimensions provided such pipe complies with all other...