Why is 409 Stainless Steel the best choice for Outdoor Furnaces?
There is a lot of debate in the outdoor furnace industry about which steel is better to use and some companies put a lot of time and effort in to promoting their choice and speaking badly about other steels.
We have made our choice based on the value that is provided to the customer. This value is based on long life (corrosion resistance, ability to withstand high temperatures, thermal expansion), heat transfer and cost effectiveness.
Advantages of 409 Stainless Steel
This might be what really sets 409 Stainless Steel apart from other steels in outdoor furnaces. It far outperforms all others steels and gives the furnace a long life. 409 Stainless Steel can withstand continuous temperatures of up to 1400º F while no other steel used in outdoor furnaces can withstand anything over 800ºF. This means that when the fire is over 800ºF mild steel and 304 Stainless Steel begin to oxidize and break down causing material failure in the long term which means a shorter life span.
Why are we able to use thinner material in our furnaces? Because 409 Stainless Steel was designed and developed for high temperature situations and to withstand corrosion.