Best grade of Stainless Steel for a blade 1

[PatCouture]

Hi, I need to make a blade using stainless steel, but I'm not sure which grade to use, It will be a rotary blade for cutting nylon nets and it can hit some metals at time.

Thanks for the help

Patrick

 

[EdStainless]

440C, or some variation of it, is very common cutting edge material.
If you are talking about hitting small pieces of metal then you will get some chipping, if you mean solid metal you will need to keep the hardness lower in order to improve toughness.
Select the temper temperature that you need.

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Corrosion never sleeps, but it can be managed.

http://www.trenttube.com/Trent/tech_form.htm

 

[unclesyd]

As long as you don't cut my nets.

Here are some good ones for information. I have no idea of the quantities require for purchase.

http://www.admiralsteel.com/products/blades.html

http://ajh-knives.com/metals.html#metal7

This is good one when it comes back online.

http://www.myarmoury.com/features.html

 

[unclesyd]

Forgot to add these.

http://www.carbideprocessors.com/Knives/Talonite_home.htm

http://www.questek.com/cutleryhead.shtml

 

[rd400guy]

Here are a variety of stainless knife steels, along with some conventional tool steel grades used in knives. T-440C is the "low end" of the stainless knife steels. After that there's 154 CM, S30V, S60V, and S90V.

http://crucibleservice.com/products/knife/index.cfm

 

[PatCouture]

Thank you guys! That was very helpful.

Patrick

 

[JTreglio]

Why not put a TiN or other hard coating on the blades? We make and coat stainless steel blades on a regular basis (bone saws, scalpel blades) and the life increase is rather dramatic. Most bone saws barely make it through one total knee replacement. Ours last through two or three (autoclaved between operations, of course).

Jim Treglio
Molecular Metallurgy, Inc.

 

[EdStainless]

The razor blades used to chop fibers for use as fill in plastic are 440C(mod) TiC coated.
The reaction uses the C in the alloy and Ti in a gas to form a surface of TiC that is part of the blade.
Under normal conditions the blades are a '10' as honed and due to the combination of wear and corrosion (residual acid in the fibers) they wear down to a not usable '4' in about 4 hours.
The coated blades are a little less shart, only an '8' to start with, but they last 6-10 times as long before they are too dull to continue.

= = = = = = = = = = = = = = = = = = = =
Corrosion never sleeps, but it can be managed.

http://www.trenttube.com/Trent/tech_form.htm

 

[tomwalz]

Try knifeforums.com and bladeforums.com

Huge amounts of information on almost anything knife related.

tom

Thomas J. Walz
Carbide Processors, Inc.

http://www.carbideprocessor.com

 

[Greenleader]

You could also try sword forum, as they have met forum.

http://forums.swordforum.com/forumdisplay.php?s=787040e21c33a70f4cdbf402059a06ac&forumid=130