We have an extensive inventory of stainless steel slip on plate flanges to complement our stainless pipe products. Most of our high quality, flanges and gasket kits are ready to ship upon request. Speak to one of our flange specialists to discuss which stainless steel slip on plate flanges and other flanges are available to meet your stainless pipe specifications. View an overview of our stainless steel product offerings. ANSI flanges meet ASTM-ASME A182 material specification and ASA B16.5 dimensional specification. View the standard specifications. Learn about our stainless steel inventory, functionality and application of our various grades of stainless steel. We engineered our product Reference Catalog for you to easily identify all of our products. The catalog includes specification charts and general dimensional illustrations to help you identify available and needed products. Learn more about theoretical bursting pressures for stainless steel pipe. Stainless steel slip on plate flanges are used to block the end of a stainless pipe system or valve. Our 150# stainless steel slip on plate flanges are available in 304 and 316 ASTM stainless steel grades. Slip on plate flanges are welded to the joining pipes and cannot be joined to a fitting directly to the flange. A pipe is needed between the fitting and flange.