Stainless steel comes in several grades, and the one known as 304 grade, is austenitic stainless steel that contains at least 8% nickel and 18% chromium. If you need tubing that can withstand high temperatures, pressures, or corrosion, buy 304 stainless steel tubes. Mechanical tubes, pipelines, and structural tubes made of stainless steel 304 grade display these characteristics.
