Steel grade 436L stainless steel for automotive parts

409L contains only about 11% Cr, previously in the standard does not classify 409L as stainless steel, only a kind of heat-resistant steel, Cr content directly affects its corrosion resistance. While 436L up to about 18% Cr content and the addition of Mo elements make its corrosion resistance and its excellent. The very low C, N and the addition of carbon stabilization elements Ti and Mo make 436L’s weldability and high temperature resistance excellent.

Generally, the elongation of 436L steel can reach 33%, and the hardness can be controlled to 150, which is very beneficial for the indentation and flaring process in exhaust pipe manufacturing.

Currently 436 has begun to be used in the automotive parts manufacturing industry, although the price of 436L is slightly higher than 409L, but many downstream products customers believe that they are not only comparing stainless steel prices, more important to look at the technical requirements and the actual application.

The person in charge of procurement in the auto parts industry said that they are currently using stainless steel grades mainly 436L, and the previous 409L are changed to 436L. The person in charge said that the reason they use 436L stainless steel mainly considering the technical requirements and production process of the reduction, compared to the discontinued 30J5 steel grade is mainly downstream customer recognition to determine the steel grade in the market Circulation frequency.