The sizes of steel pipe nipples vary depending on their intended use and application. Common sizes include 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", and 2". However, there are many other sizes available to cater to specific needs and requirements.
Steel pipe nipples come in a variety of sizes, ranging from 1/8 inch to 6 inches in diameter.
