api 5000API Blind Flanges dimensions are desned to handle hher rated pressure. We are an API 6a flanges manufacturer. Visit now! For Domestic (for India) Email: sales3@ Phone:API 6A TEMPERATURE CLASS L: SERVICE -50ºF TO 180ºF (-46ºC TO 82ºC) 2,000 3,000 5,000 API 60K Alloy Steel Corrosive (CO2) & Sour (H 2S) NACE4 MR01-75 T26F F 2,000