High-chromium stainless steel sheet 304 first

Good heat resistance, corrosion resistance is weak , 11% Cr, 8% of Ni.
409 - the cheapest model ( BAR ) , commonly used as automobile exhaust pipe, is a ferritic qiyi stainless steel 304 sheet ( chrome steel ) .
( High-strength chrome steel ) , good wear resistance , corrosion resistance is poor .
Similar to Brandt 's first high-chromium stainless steel this . Also used in surgical tools , can do very bright .
Good formability , but heat resistance and corrosion resistance worse .
Carbon is slightly higher , after appropriate heat treatment to obtain a higher yield strength and hardness up to 58HRC, are among the most hard stainless steel sheet 304 . The most common application example is the " razor blades ." ( Easy processing ) .