ANSI Standards ANSI MSS SP-44-2019 pdf free download – STEEL PIPELINE FLANGES ANSI MSS SP-44-2019 pdf free download - STEEL PIPELINE FLANGES. The CE shall not exceed 0.48%, based on ladle analysis,without prior approval of the purchaser.If theCE exceeds 0.45%, the flange shall be marked with the actual CE... 02-17 Download Now