Is 20CV the same as M390?

Is 20CV the same as M390?

Resulting Properties We have done a couple comparisons between the toughness of similar steels from different manufacturers, such as Bohler M390 and Crucible 20CV. In that case the toughness was essentially identical, the small difference is probably just due to experimental variability.

What steel is better than M390?

S30V is high-end steel made by US Crucible and enjoys high popularity in the knife manufacturing industry. Compared to M390, this steel offers lower wear resistance and edge retention. Sharpening S30V is much easier than M390 steel. But both steels have the same level of corrosion resistance and toughness.

How good is CPM 20CV?

CPM 20CV is one of the best steels for retaining an edge. The CATRA test, which measures the sharpness and edge life of a blade by comparing it to 440C, rates CPM 20CV 180% better. The higher percentage of vanadium in this steel creates a fine grain structure to better hold an edge.

How strong is M390?

M390 Steel and Hardness Bohler put the hardness of this tool steel at between 60 and 62 HRC. This hardness makes for medium-hard steel on the Rockwell Scale. Typically, a knife of a lower rating is softer and easier to sharpen but does not keep a sharp edge for long.

How good is M390?

M390 steel is durable, more so than many other types of metal. It performs very well when ground. It is extremely tough and hardy, meaning it will last a long time. M390 steel is very resistant to corrosive materials and rusting.

How hard is CPM 20CV?

The Rockwell hardness of CPM 20CV is 59 – 61 HRC. That is just slightly harder, and has the same toughness as 440C, which is a benchmark steel for knives. 20CV has five times the wear resistance of 440C, and has 30% more corrosion resistance.

Is 20CV better than S90V?

CPM 20CV vs S90V S90V is also a super steel material from Crucible. So, both ensure extremely good edge retention. Nevertheless, S90V is a bit better at resisting wear. On the other hand, CPM 20CV is relatively easier to sharpen and is better at resistance to rust and corrosion.

Does M390 steel rust?

It is extremely tough and hardy, meaning it will last a long time. M390 steel is very resistant to corrosive materials and rusting. It can be polished to a mirror shine – not that important, but a high-quality blade should have an excellent finish, and it does make the end product more visibly appealing.

Is M390 easy to sharpen?

A knife made from M390 steel is therefore often more expensive than a knife made from a different type of steel. M390 is also not that easy to sharpen. That is to say: you won’t get very far by using a simple Arkansas stone. M390 is also not incredibly tough.

Which is better Duratech 20CV or SOG S30V?

Timken-Latrobe collaborated with SOG to test 20CV, reporting superior edge retention to S30V. Latrobe separated from Timken in 2006 [9] but continued to sell Duratech 20CV and it became popular with several major knife manufacturers.

Which is better M390 or CPM S30V?

At least performs same on edge holding test on manila rope. CPM S30V by Buck heat treated by Boss on 110 holds 20th place and M390 by BM on 710 holds 21st. Usually BM show worse results then Buck – Buck has better heat treatment then many.

Where did M390 Steel come from for knives?

The increase in use of M390 in knives did not come from Bohler, but from Latrobe steel in Pennsylvania, USA. They began producing a copy of M390 called Duratech 20CV, and this steel started to be used by major USA knife companies.

What kind of edge retention does M390 have?

The edge retention of M390 is also relatively high from its high carbide content and the 4% vanadium addition. This good edge retention has been confirmed in many tests, including CATRA results from Bohler-Uddeholm, Latrobe, and my own.