Our stainless steel butt weld pipe tees include butt weld straight tees and butt weld reducing tees. Made from 300 series high strength stainless steel. View an overview of our stainless steel product offerings. Select various stainless butt weld tee sizes, grades and schedules. Our pipe sizes and weights chart will assist in your research of individual product specifications. Butt weld tees conform to ASTM A403 with dimensional tolerances in accordance with MSS SP-43 for schedules 5s and 10s, and with ANSI B16.9 for schedules heavier than 10s. View the standard specifications chart. Stainless steel butt weld tees available from Shaw Stainless & Alloy Piping. Here are the various grades of stainless steel. We designed a Reference Catalog to help identify our offering of stainless steel buttweld tees and other pipe fittings through drawings and additional information. Here is a chart to review theoretical bursting pressures for various stainless steel pipe. The most common pipe fitting is a stainless steel pipe tee or specifically a straight pipe tee. Tees have two outlets at 90 degrees from the main flow and are used to combine or split fluid or gas flow. Tees connect and combine pipe systems or they can connect various size pipes together with reducing tees. A reducing tee can connect various sizes of pipes together in one pipe system.