7 Important Things To Keep In Mind While Choosing A Steel Grade


Stainless steel as the name suggests has the added advantage of resistance to corrosion, thus making it favorite among engineers. There are a lot of grades of stainless steel available in the market now intended for different purposes and cost-effectiveness. This abundance in the availability of grades makes it mandatory to have a basic knowledge about each of them to choose the right one for the job. Let us look at the 7 important things to keep in mind while choosing a steel grade.

1. Formability:

If you are in the market looking for formable stainless steel, then you should avoid opting for stainless steel such as 410 because they are brittle and not always formable. However austenitic stainless steel could be the right choice. Austenitic grade including ferrite grade could also be ideal for applications involving formability.

2. Weldment:

Welding of stainless steel is not always encouraged since it causes serious problems like cracking and corrosion. Welding of stainless steel is an entirely different matter from ordinary steels containing carbon. If anything martensitic steel for welding should be avoided at all costs as they have a lower content of carbon. Weldable stainless steels comprised of the austenitic group.

3. Machinability:

Unlike other types of steels, stainless steel is highly susceptible to hardening and hence requires machining at a high rate if any. Several grades of steel must be machined so it is only natural to optimize the process for the sake of stainless steel. After considering these aspects consumers may choose what to do with their stainless steel.

4. Corrosion Resistance:

Different grades of stainless steels have different rankings in terms of corrosion resistance. The duplex stainless steel is the noteworthy grade that is generally devoid of cracking and stress found on other grades of stainless steel. Stainless steel products manufacturers in India usually adapt grades that can withstand corrosion to improve the life of the products.

5. Stainless Steel Requirements:

SS products manufacturers usually opt for hardened stainless steel treated at 440`C followed by precipitation. This helps to improve the overall strength of the stainless steel. Austenitic and martensitic grades of stainless steel are generally characterized by high strength and are used in applications that require steels possessing high strength. Nickel in some steels may be greater than other grades. Duplex stainless steels are known for ductility as they have properties that compliment it.

6. Heat Treatment:

Stainless steel products suppliers treat stainless steel according to their grades. Stainless steel is hardened at 440C and 17-18 pH. The amount of heat treatment employed on steels depends on their uses and applications. It is also important to note that after heat treatment steel cannot be hardened.

7. Expansion And Contraction:

Though stainless steels are generally said to be tough, they undergo expansion as well as contraction. For instance, the Eiffel tower is much taller in summer than it is in winter. So temperature does affect its structure and engineers should consider this factor during constructions to produce better outcomes.

It can be concluded that different grades are meant for different purposes. There is no superiority in terms of grades as each has its own applications.



Comments

  1. Skyland MetalAugust 2, 2021 at 4:40 AM

    It is really a helpful blog to find some different source to add my knowledge. Incoloy 825 Pipe Fittings

    ReplyDelete

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