Description Thick Len Wid Price Qty Stock

CPM 3V Carbon Steel, Flat Ground

.094 in 11.6 in 2.0 in $48.10
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BS3V-0094-116020G 1

CPM 3V Carbon Steel, Flat Ground

.096 in 11.6 in 2.0 in $48.80
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BS3V-0096-116020G 3

CPM 3V Carbon Steel, Flat Ground

.094 in 22.6 in 2.0 in $93.70
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BS3V-0094-226020G 3

CPM 3V Carbon Steel, Flat Ground

.094 in 22.6 in 2.5 in $117.10
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BS3V-0094-226025G 1

CPM 3V Carbon Steel, Flat Ground

.201 in 8.6 in 1.5 in $42.60
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BS3V-0201-086015G 7

CPM 3V Carbon Steel, Flat Ground

.201 in 8.6 in 2.0 in $56.80
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BS3V-0201-086020G 5


InformationCPM 3V Carbon Steel Information and Composition

Condition:
Our CPM 3V has been properly annealed and is in the soft condition. You do not have to do any non-standard wasteful processes before heat treating. The steel must be heat treated to get to a hardened state. Follow the heat treat recipe and the steel will harden.

Ratings:
80 = Maximum Toughness
46 = Maximum Edge Holding

The rating scale is 0-100, 0 being minimum and 100 being maximum. The ratings are the maximum potential of the alloy. I do not recommend heat treating to the maximum value. Choose a heat treat recipe that results in the attributes you want.

Thank you to Dr Larrin Thomas for all the testing he performed and information he has provided. Buy his book Knife Engineering to learn more about knifemaking.

Alloy Comparison Table:

Description:
Crucible CPM 3V is extremely tough and has enough chromium to have some corrosion resistance. Grind the edge thinner than normal. The steel is tough enough to support a thin edge.

Flat Ground:
Any alloy that has “Flat Ground” in the description has been Blanchard ground. Our tolerances for flat grinding are +-.001” across 12”. You can identify Blanchard grinding by circular grind marks. Do not be mislead by other descriptions. Others try to pass off less accurate types of grinding with lower tolerances as flat grinding. This is why we call out our tolerances.

Information Sources:
There are many sources of information regarding knifemaking. Some sources, like Dr. Larrin Thomas of Knife Steel Nerds, are excellent. Other sources are not as credible. It is important to vet the your information sources. Be careful of anyone who says the way to heat treat 1095 or O1 is to heat to non-magnetic and quench in used motor oil. Anyone who publishes this type of information is not credible. When possible, we use information from manufacturers and industry experts.

AI Information:
The latest trend of bad information is from Artificial Intelligence (AI). Multiple companies have AI programs. AI collects and compiles information. The problem is, AI is does not know if the information is accurate or garbage. When asked, AI regurgitates and merges good and bad data. Beware of AI data when researching materials. If you read material information that sounds like it was written by a poetry graduate student, compares materials that are not similar, contains blatantly false information, etc, it was probably AI generated. At AKS, we never use AI to generate material information.

Data Sheet:
Crucible CPM 3V Data Sheet


Heat TreatCPM 3V Heat Treat Information:

Preheat: Heat to 1,500-1,550°F. Equalize temperature.

Austenitize: It is critical to not exceed the maximum austenitize temperature. If you overshoot the maximum temperature by a small amount, toughness will go down dramatically.

1,875-2,050°F, hold time at temperature 20-45 minutes.

Quench: Plate, air or medium oil quench and cool to below 125°F.

Temper: Three times at 1,000-1,050°F for 2 hours minimum each time.

Cryogenic Treating: May improve long term dimensional stability by transforming retained austenite. Any cryogenic treatment must be followed by a temper.

Use the graph below to select your temperatures:


CertsCPM 3V Certs

Chemical Composition Certification*

  1. Click on the button below to get the chemical composition of the steel you purchased.
  2. You will be required to enter the three character code written in red letters on your steel.
  3. If you do not see red letters on the steel, your specific chemical composition is not in the system.

Lookup Cert
 
* This material is NOT certified for medical or aerospace applications.

Crucible, CPM, 3V, 4V, 10V, Rex 121, 20CV, S30V, S35VN, S90V, S110V, S125V are registered trademarks of Crucible Industries LLC

BS3V BS3V-0040 BS3V-0060 BS3V-0080 BS3V-0100 BS3V-0120 BS3V-0140 BS3V-0160 BS3V-0180 BS3V-0200 BS3V-0220 BS3V-0240 BS3V-0260
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CPM 3V Carbon Steel
Average rating:  
 2 reviews
 by Scott

Every piece I've gotten from Alpha has been flat as a pancake and smoothly ground. Heat your 3V blade at 1950-2000F for 30 minutes, give it a cold treatment and a few 350-400F tempers, and you will be happy.

 by Skylar

I love how tough this steel is while still holding a good edge. I was able to put a pretty thin edge on my 3v knife. This steel was perfect for my project.