The pressure rating for Schedule 40 stainless steel pipe depends on various factors, including the pipe size and temperature. Schedule 40 is a standard dimension designation for steel pipe, and it indicates a specific wall thickness. The pressure rating is typically provided by the manufacturer and is based on standards such as those from the American National Standards Institute (ANSI) or the American Society of Mechanical Engineers (ASME).

As an example, for Schedule 40 stainless steel pipe, the pressure rating can vary for different grades of stainless steel (e.g., 304, 316). A common pressure rating for Schedule 40 stainless steel pipe in various sizes is 150 pounds per square inch (psi) at room temperature. However, it's crucial to consult the specific standards and manufacturer's documentation for accurate and detailed information on pressure ratings for a particular grade, size, and temperature conditions.