I have had these knives for several years now and continuously wash them in the dishwasher. They have kept their fantastically sharp edge and have never rusted. I will never buy another steak knife as long as I can purchase these. My daughter and her family have just returned from Japan to live in my basement so I am having to replace the knives she has taken from me! C'est la vie.

What type of stainless steel is used for these?

It says in the description that their knives are made of surgical grade stainless steel. Reviewing the page on surgical stainless steel in Wikipedia, since surgical grade is an imprecise and undefined term, I guess we can rule out medical stainless steel, the grade of steel used for implanting in the body, which is usually 316 and 316L (low carbon). The next logical assumption would be that is cutlery grade, which is used for surgical cutting instruments, and those are usually 440 or 420. These are high carbon steels that include chromium, with greater hardness and very good corrosion resistance compared other cutlery steals, but less resistant than 316 stainless steel.

ASIN	B071H75LGC
Batteries Included	No
Batteries Required	No
Brand Name	Bellemain
Color	stainless steel
Customer Reviews	4.8 4.8 out of 5 stars (5,787)
Date First Available	April 28, 2017
Item Weight	0.01 Ounces
Manufacturer	EPI
Material	ステンレス鋼
Model Number	EPI
Package Dimensions	29.3 x 14.7 x 3.2 cm
Package Weight	0.5 Kilograms
Size	4-Piece Set
Special Features	Full Tang

Bellemainステンレススチール ステーキナイフ 4点セット

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Bellemainステンレススチールステーキナイフ 4点セット