304 stainless steel material is safer.
CORROSION RESISTANCE Because 430 stainless steel contains 16.00-18.00% chromium and basically no nickel metal, and stainless steel 304 contains more chrome and nickel metal, the corrosion resistance of 430 stainless steel is not as good as that of 304 stainless steel.
Stable performance.
430 stainless steel is in ferrite form, stainless steel 304 is in austenitic form and stainless steel 304 is more stable than 430 stainless steel.
toughness
304 stainless steel has high toughness, which is stronger than 430 stainless steel.