What Is Stainless Steel? And How Do They Grad It?

 

Steel is an iron-carbon alloy with a maximum carbon concentration of 2.1 percent. Stainless steels are a type of steel that has had some alloying added to make them resistant to corrosion. The term stainless steel is a grouping of about 200 steel alloys that are extremely resistant to corrosion and heat. The carbon content could vary between 0.03 percent and 1.2 percent. Its unique feature is the high chromium level. Stainless-steel cookware contains a minimum of 10.5 percent chromium, which enhances resistance to corrosion.

Exposure to the air creates an inactive layer that prevents oxidation. This inactive coating protects the alloy from further corrosion and renders it rustproof. This allowed the alloy to maintain its flawless appearance for extended periods of time, while still meeting all requirements. Stainless steel has been used successfully across many industries for more than 70 years. As stainless steel's benefits are better understood, so do more uses.

Producing has become more affordable as demand has increased. Both regular and nonstandard sizes are now readily available due to increasing demand. A large variety of stainless steel styles are also available.

Stainless Steel Grading Techniques

Stainless-steel can be classified by using different numerical grading systems based on its physical properties, composition, and application. After being classified by the series number, each variety is assigned a numerical grades. There are five most common series numbers: 200, 300. 400. 600. and 2000. The most common qualities are austenitic, chromium and nickel alloys of type 304 or 316. The 400 Series, which is composed of ferritic, martensitic, and chromium-nickel alloys, includes cutlery grade stainless steel. Type 420 is the surgical steel and type 440 the razor blade steel.

Application of Stainless Steel

Applications for Ferritic Stainless Steel

All ferritic apptestimonial.com ainless metal applications include automotive parts and the petrochemical industry, heat exchangers, furnaces and durable goods like utilities and food machinery.

Uses of Austenitic Stainless Steel

It is used in kitchenware, kitchenware and structural parts in aerospace and automotive. Another popular stainless steel is 316. It is used in the manufacture of food preparation machinery, laboratory benches as well as medical and surgical devices.