api 5000API 6A flanges of class 5000 and below are often made of A105 carbon steel with a minimum yield strength of 45K, while API 6BX flanges of class 10000This AB Sciex API 5000 Triple Quad LCMSMS comes expertly refurbished from GenTech Scientific. Condition: Refurbished. Model: 5000. OEM: AB Sciex. Full-Service Reseller.