s43020-stainless-steel-coil is similar to 430 stainless steel with increased sulfur to dramatically improve machinability. s43020-stainless-steel-coil is a free machining version of 430. With moderate strength and corrosion resistance SS 403F is ferritic stainless steel, non-heat treatable 17% chromium stainless. It does not form as easily as Stainless Steel 430 due to the sulfur but still has moderate ductility. Due to the addition of sulfur it can be excellent chip breaker
s43020-stainless-steel-coil Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	-	0.12
Mn	-	1.25
Si	-	1.00
P	-	0.06
S	-	0.15
Cr	16.00	18.00
Ni	-	-
Mo	-	0.60

s43020-stainless-steel-coil is a ferritic stainless steel formulated for primary forming into wrought products. This materials properties are appropriate for the annealed condition and demonstrates a moderately low embodied energy among the wrought ferritic stainless steels.