X50CrMoV15 and 1.4116: The Steel Half of Europe’s Kitchens Are Made Of

If there is a European knife in your kitchen that you did not buy in a boutique, it is very likely made from this steel. It is also what hides behind the words “high-quality stainless steel” on the box: the real name sells nothing.

Four names for one steel

X50CrMoV15 is the DIN designation, and it reads literally. The 50 is 0.5% carbon. The 15 is roughly the combined percentage of chromium, molybdenum and sometimes vanadium. The X at the front stands for carbon, which is mildly absurd, because carbon is usually written as C.

1.4116 is the same steel under the German material number system. 4116 Krupp is the same again. 5Cr15MoV is the Chinese designation for practically the same composition. One steel, four stamps, and the seller picks whichever looks best on the price list.

By composition it is 0.45–0.55% carbon, 14–15% chromium, 0.5–0.8% molybdenum and 0.1–0.2% vanadium. There is less carbon here than in 440C. There is plenty of chromium.

What follows from that

Chromium gives stain resistance, and on that count the steel is beyond reproach: it forgives a wet sink, lemon and the dishwasher. Low carbon means not much hardness and not much wear resistance either.

Entry-level knives from Henckels, Wüsthof and other German makers are hardened to 54–56 HRC. That is not much. Every two points of HRC roughly double the time a knife stays sharp: 52 HRC holds an edge for about a week, 62 HRC for about a year under regular use. On that scale 1.4116 sits closer to the left edge.

Hence the European kitchen culture in which the honing steel hangs next to the board rather than lying in a drawer. In professional European kitchens a knife is trued daily or several times a day, and a soft steel with good toughness is not a defect there but a condition of the problem: it does not chip, it is straightened with one practised stroke and it costs little.

The family

• X45CrMoV15 — 0.45% carbon. Nothing special, relatively cheap, used by a number of Western makers including F. Dick.
• X55CrMoV15 — the same thing at 0.55% carbon. Found at Messermeister.
• X55CrMoV14 — the steel of Swiss Army knives, also known as Krupp 4110 (1.4110), from the same CrMoV family.
• Nitro-B, also called 1.4116N — a version of X50CrMoV15 with a large share of nitrogen, developed by the German group Buderus Edelstahl. Nitrogen works here in place of carbon. The blades are treated with liquid nitrogen at temperatures down to −80 °C, and hardness reaches 60 HRC.

Friodur deserves its own line. It is not a grade of steel but the name of a heat treatment: Henckels takes the same X50CrMoV15, heats it hard and then cools it to −94 °C. The knife comes out slightly harder and slightly more rust-resistant. On the shelf it looks like a separate technology; in the metal it is one extra step on the shop floor.

The neighbours

To see where this steel stands, it helps to look at what is next to it.

Cromova 18, which Yoshikin puts in Global knives, is considered a better steel than X50CrMoV15 — simply because it is tougher. Its hardness is 58 HRC, and by Japanese standards that is low: the steel is deliberately kept soft so that it sharpens well. In other words, the Japanese compromise towards softness begins where the German one ends.

From the other side, Japanese AUS-8A (57–59 HRC), the one called a molybdenum-vanadium steel, is described as similar to the steel in the best German knives. Good rust resistance, an affordable price, nothing exotic. In the middle segment the difference between “German” and “Japanese” steel is smaller than the difference in shop-window design.

How bad is it

The verdict in the reference books is usually short: 0.5% carbon is low, the edge holds poorly, you will have to sharpen often, a doubtful choice for a kitchen knife. All of that is true.

It is also true that since 2017 the same steel has been going into mid-priced Chinese knives — large chef’s blades and cleavers of 9–12 inches — hardened to 56–60 HRC, with noticeably better edge retention. The steel did not change. The heat treatment did.

That is the main conclusion about 1.4116 and about cheap stainless steels in general: the grade sets the ceiling, and the heat treatment nobody prints on the box decides how close you get to it.

There is also a use where it is objectively in its place — flexible Western-style fillet knives. They are made from 4116 specifically for sea fish, because there corrosion resistance matters more than edge retention. Salt, water, cleaning in the wind — the steel matches the job exactly.

Who needs it

Anyone who trues a knife regularly and does not consider that a humiliation. Anyone who leaves a knife in the sink. Anyone who needs a knife as a consumable rather than as property.

Overpaying for it is pointless twice over. The first time is when “German quality” is priced at a level where the steel itself accounts for a few euros. The second is when you buy a second identical knife hoping this one will hold its edge longer.