304 and 316 stainless steel balls are now the two most […]
304 and 316 stainless steel balls are now the two most commonly used stainless steels 304, 316 (or corresponding to German/European standards 1.4308, 1.4408)
The 316 steel ball contains Mo, which is better than the 304 steel ball in high temperature environment, so in high temperature environment, engineers generally choose the ball of 316 material. 304 is usually used for temperatures below 790 degrees, while 316 can be used at 1200-1300 °C.
Secondly, there are also differences between the two grades; the 304 stainless steel ball corresponds to the Chinese brand 0Cr18Ni9 steel ball; the 316 stainless steel ball corresponds to the Chinese brand 0Cr17Ni12Mo2 steel ball.
Third, 316 mainly reduces the Cr content and increases the Ni content and increases Mo2% to 3%. Therefore, its corrosion resistance is stronger than 304, suitable for use in chemical, seawater and other environments. Similarly, the cost of 316 is also higher than 304. Generally, 316 is used in places where the requirements are relatively high, instead of 304. While 316L has better weldability than 316, it is easier to process. The same reason is the same for 304L and 304, but the 304HC steel ball is more free-cooling by adding 2% copper content than 304 balls.
Its practical naked eye can not see the difference between stainless steel 304 and 316, there is a more intuitive way to distinguish, using stainless steel potion for identification