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Points to consider when choosing a stainless steel grade


The stainless steel, known for its corrosion resistance, is used in a wide variety of applications. The diverse range of grades allows you to adapt to endless applications in different industries. However, having so many degrees requires that you know which one will be suitable for the work you do.

With over 150 degrees of stainless steel and numerous products to review, it is easy to get stressed. Below are some points that you should consider when choosing a stainless steel grade.

First, you should know that, when choosing a type of stainless steel, the basic families available are:

* Austenitic

* Martensitic

* Ferritic

* Hardenable by precipitation

* Duplex

  1. Corrosion resistance

Stainless steel is generally chosen for its high corrosion resistance, but it is important to know that the different grades available provide different amounts of corrosion resistance.

The environment in which the en 10025 6 s690ql stainless steel product would be is the main factor in selecting the correct grade. The main concerns that you should consider are atmospheric situations and concentration levels of chemicals (such as acid and chloride).

The grade of austenitic stainless steel such as sa 283 gr c is preferred in low corrosion environments; While in extremely corrosive environments due to the presence of chlorine or seawater, grade 316 is recommended.

On the other hand, duplex stainless steels can be used to prevent stress corrosion cracking associated with austenitic stainless steels.

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  1. Heat treatments

If the stainless steel product is going to be subjected to heat treatment, it is important to know how its quality can be affected.

For the most part, austenitic and ferrite stainless steels are not hard enable when heat treated. On the other hand, thermally treatable stainless steels are typically marten’s tic or precipitation hard enable such as grade 440C.

  1. Heat resistance

 The surrounding temperature is also an important component. Excessive temperatures, such as that of furnaces, increase corrosion rates and exert additional pressures on the stainless steel material.

The astm a516 gr 60 grade is perfect for stainless steel products that need to withstand heat.

  1. Magnetic response

 It is guaranteed that those grades that have higher nickel content are non-magnetic in any situation.

The ferritic and martensitic stainless steels (400 series) have high permeability’s and are classified as Ferromagnetic. Duplex grades such as 2101 and 2205 are also.

  1. Life cycle cost

Obviously, cost is a very important factor and will vary depending on what you need.

Many times, the best alternative can be very expensive; However, be sure to evaluate the cost based on the product life cycle.

a285c plate materials tend to have a longer lifespan, so acquiring a higher quality stainless steel product at a higher cost will be completely justifiable.

 Typical applications:

Ferritic stainless steels:

* 409: Car exhausts systems and heat exchangers

* 416: Transmission shafts and fasteners

* 430: Food industry and appliances

* 439: Components for car exhaust systems

Austenitic stainless steels:

* 303: Fasteners, accessories, gears

* 304: General purpose austenitic stainless steel.

* 304L: Applications with grade 304 requiring welding

* 309: Applications with high temperatures.

* 316: Chemical applications

* 316L: Applications with grade 316 requiring welding

Read more: c45 plate suppliers

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