the 75,000 psi of 304 stainless), 201 stainless steel requires a lot of force to shape and can exhibit greater springback. With a tensile strength of 101,000 psi (vs. With an average of 5.5 percent nickel content, it is significantly less expensive than 304 stainless steel but has formability characteristics that are close to those of metals in the 300 series. Type 201 stainless steel was originally developed to produce a stainless steel that wasn’t so reliant on nickel. This high ratio of nickel also gives 304 stainless its characteristic blue color and enhances its formability, especially in cases involving multi-draw processes or complex shapes such as hydroforming. It has less than 0.08% carbon content, making it extremely resistant to intergranular corrosion and often eliminating the need for any annealing, except as a stress reliever.ģ04 stainless steel also has high nickel content - in the range of 8–12 percent - which is one of the main reasons it is relatively expensive. This can be accomplished by using the same grade of stainless as the product that needs to be matched or through specialized finishing if using a different grade of metal.Įxhibiting the highest quality and best overall formability, 304 stainless is the most expensive of the typical grades used by appliance stainless steel handle manufacturers. Color – Stainless steel handle manufacturers go to great pains to match the color of their products to the color of surrounding elements such as door skins.Selecting grades with higher levels of resistance or opting for finishes to increase durability in this area can be important, though, for appliances, such as dishwashers, that frequently come into contact with solvents and water. Corrosion Resistance – All of the grades of stainless steel on this list have a reasonable degree of corrosion resistance.Some of the more complex shapes for appliance stainless steel handles - i.e., those with tight corner radii - require grades that can tolerate higher degrees of plastic deformation without any significant loss of strength. Formability – Each of the types of stainless steel noted above have different yield strengths.Grades of stainless steel are typically selected on the basis of three main characteristics: Appliance stainless steel handle manufacturers typically use just four of these many options: 304, 439, 441, and 201 grade stainless.īelow we outline the defining characteristics of each grade and discuss why and when stainless steel handle manufacturers choose one over the other. By any count, there are over 150 grades of stainless steel available.
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