316 stainless steel contains Mo, which has better corrosion resistance than 304 stainless steel in high temperature environment. Therefore, in high temperature environment, engineers generally choose parts made of 316 material.
316 stainless steel corresponds to the Chinese grade 0Cr17Ni12Mo2.
316 mainly reduces the Cr content and increases the Ni content and increases the Mo2%~3%.
Use copper sulfate to identify and remove the oxide layer on the steel, put a drop of water, wipe it with copper sulfate, if it does not change color after rubbing, it is generally stainless steel; Ordinary steel or low alloy steel. For special properties of steel, we need to take the following three methods to identify. Grinding identification Grinding identification is to grind stainless steel on a grinder and watch its sparks. If the spark is streamlined and has more dense knots, it is high manganese steel or manganese nitrogen steel with higher manganese content; if there is no knot, it is chrome steel or chrome-nickel stainless steel.
