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Everything you need to know about the stainless steel family

Posted by:Rain Time:2019.10.11 00:05

The stainless steel family consists basically of austenitic, ferritic and martensitic. Although they are distinct, the types of stainless steel are 

similar in their composition, since they all consist of iron mixed with 10.5% chromium. This factor is responsible for the high durability of 

the material compared to other types of metals. That is, the stainless steel family is much more resistant to impacts and abrupt thermal 

changes.

 

Check below the differentiation between each type of stainless steel.

Austenitic

Austenitics are essentially formed of iron, chromium and nickel. This gives more resistance, especially at low temperatures and corrosion. 

Know the types of stainless steel characterized as austenitic.

 

Steel 304 - This alloy is mainly indicated for the manufacture of hospital, pharmaceutical, chemical and petrochemical industries, as they 

have high corrosion resistance.

 

304L Steel - This is the improved version of 304 Steel. Among its main advantages is the high resistance in case of intercrystalline oxidation.

 

316 Steel - Superior to the two austenitic steel types mentioned above, 316 steel has molybdenum in its composition.

 

316L Steel - Like other austenitics, 316L is widely used in industry. Its only difference is that it is the most resistant, especially when it comes 

to intercrystalline corrosion.

 

Ferritics

Of the stainless steel family, this is perhaps the least resistant, since it does not have nickel in its constitution. This is why it is the cheapest 

of all stainless steels. It is used abundantly for making appliances, cutlery, among others.

 

Martensitic

Steel 410 - Used in materials that require high temperability, such as turbines, blades, etc.

Steel 420 - Used for making cutlery, scalpels and tools.

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