difference between carbon steel flange and stainless steel flange

Carbon steel does not specially add alloy elements of steel, stainless steel is to prevent rust and add high alloy content of steel. Stainless steel is much more expensive than carbon steel. These two kinds of steels have different uses. They are neither good nor bad. Carbon steels are usually stronger than stainless steels, but they are easy to rust. The common classification of carbon steel is hot rolling, cold rolling, galvanizing, silicon steel, thread steel, wire rod, corner groove, etc. The main categories of stainless steel are 200 series, 300 series, 400 series, 500 series, 600 series, 900 series, etc.