409L Stainless Steel Sheet Grade 409 (UNS S40900, EN1.4512) is a stabilized version of 409, consisting of a suitable circuit, low levels of carbon and nitrogen, and additions All the right ingredients give Grade 409L some of the properties such as corrosion resistance, weldability, and formability - due to the lower chromium content, Grade 409L is another low-cost option for corrosion-resistant stainless steel. and formability - With its lower chromium content, Grade 409L is another low-cost alternative to corrosion-resistant stainless steels. It offers a good combination of heat and corrosion resistance and is well suited for non- or mildly corrosive environments or applications with excellent oxidation resistance at elevated temperatures and good weldability for use in automotive exhaust or petroleum equipment.
