CPM® S30V® Stainless Steel









Description Thick Len Wid Price Qty Stock

CPM S30V Stainless Steel, Flat Ground

.107 in 11.6 in 2.0 in $56.90
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BSS30-0107-116020G 1

CPM S30V Stainless Steel, Flat Ground

.109 in 21.4 in 2.0 in $106.30
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BSS30-0109-214020G 2

CPM S30V Stainless Steel, Flat Ground

.133 in 12.7 in 2.0 in $68.70
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BSS30-0133-127020G 5

CPM S30V Stainless Steel, Flat Ground

.135 in 23.5 in 2.0 in $128.60
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BSS30-0135-235020G 4

CPM S30V Stainless Steel, Flat Ground

.136 in 23.5 in 2.0 in $129.30
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BSS30-0136-235020G 1

CPM S30V Stainless Steel, Flat Ground

.164 in 12.4 in 1.5 in $58.30
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BSS30-0164-124015G 1

CPM S30V Stainless Steel, Flat Ground

.164 in 12.4 in 1.7 in $66.10
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BSS30-0164-124017G 1

CPM S30V Stainless Steel, Flat Ground

.159 in 23.5 in 1.7 in $122.20
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BSS30-0159-235017G 1

CPM S30V Stainless Steel, Flat Ground

.239 in 21.3 in 1.5 in $132.70
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BSS30-0239-213015G 1

CPM S30V Stainless Steel, Flat Ground

.239 in 21.3 in 2.0 in $177.00
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BSS30-0239-213020G 4



InformationS30V Stainless Steel Information and Composition

Condition:
Our CPM S30V 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:
12 = Maximum Toughness
59 = 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:
A very good stainless steel. S30v has become one of the industry standards for high end production knives due to its toughness and edge holding. S30v is an excellent choice for a corrosion resistant knife that must stay sharp without frequent resharpening. S30V has very specific heat treat requirements but when done correctly results in a great blade. CPMS30V is not recommended for forging.

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 S30V Data Sheet


Heat TreatS30V Heat Treat Information:

Preheat: Heat to 1,550-1,600°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.

Heat to 1,900-2,000°F, soak times for the different austenitizing temperatures are listed below:
1,900°F = 45 Minutes
1,950°F = 30 Minutes
2,000°F = 20 Minutes
The recommended heat treatment is to austenitize at 1,950°F then quench to below 125°F. Cryo if desired. Temper twice at 600°F for 2 hours minimum each temper. Cool to hand warm between tempers.

Quench: Plate or air quench to below 125°F, or interrupted oil quench to about 1,000°F, then air cool to below 125°F.

Temper: Double temper at 400-1,000°F. Hold for 2 hours minimum each time. Note, tempering at 1,000-1,025°F decreases corrosion resistance.

Use the graph below to select your temperatures:


CertsCPM S30V 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

BSS30 BSS30-0040 BSS30-0060 BSS30-0080 BSS30-0100 BSS30-0120 BSS30-0140 BSS30-0160 BSS30-0180 BSS30-0200 BSS30-0220 BSS30-0240 BSS30-0260
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CPM S30V Stainless Steel
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