The 18% chrome, 8% nickel is popular in the U.S. The nickel content insures resistance to staining and shines like silver for the life of the product. The flatware is grade rolled to give items tensile strength and balance. The knives are electropolished to bring more chromium to the surface for greater resistance to staining. The knives are also made of 420 type stainless steel so a cutting edge can be maintained.