Now the stainless steel materials commonly used in architecture and life are mainly divided into two series: 300 and 400.
These two series of stainless steel materials have excellent performance and are suitable for different places. Here we compare the two series of stainless steel.
It is 300 series stainless steel. There are 7 kinds of 300 series stainless steel
301 material: good weldability. The wear resistance and fatigue strength are better than 304 stainless steel.
2. The corrosion resistance of 302 material is the same as that of 304, with high strength
303 material: easier to cut.
4.304: Universal
309: high temperature resistance
6.316: strong resistance to chloride corrosion, commonly used in "marine steel"
7.321: strong corrosion resistance of weld
Here is the 400 series:
408 material: good heat resistance, weak corrosion resistance
2.409 material: cheap model, usually used as automobile exhaust pipe
410 material: good wear resistance, poor corrosion resistance
4.416 material: excellent processing performance
420 material: high brightness, used for surgical tools
6.430 material: good formability, but poor temperature resistance and corrosion resistance. For decoration
7.440 material: hard stainless steel, commonly used for "razor blade"
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