WN Flange 12'' STD. ASTM-A 350LF2. RF. 300 lbs

Forged carbon steel flanges as per ASME B16.5 manufactured from material ASTM A350/ SA350 LF2 Class 1, with additional requirements as per NACE MR0175/ISO 15156-2 and MR0103. Max. C-content 0.23%, max. C-equivalent 0.43% (long formula). Roughness of gasket face up to and incl. 600 Ibs.: Ra = 125-250 microinch (3.2-6.3 microns); roughness of gasket face > 600 Ibs.: Ra = 32-125 microinch (0.8-3.2 microns). If desired with inspection report as per EN 10204/3.1.