S30V Steel : Full Details And Review

A Benchmade Knife In S30V Steel

S30V Steel For Knives

When it comes to knife blade materials, S30V steel is a popular choice among knife enthusiasts and professionals alike. Known for its impressive balance of corrosion resistance, edge retention, and toughness, it’s no wonder why this steel is highly sought after. In this article, we’ll dive into the world of S30V steel, exploring its composition, strengths, and weaknesses, and how it compares to other knife steels on the market. 

What is S30V Steel? 

S30V steel, also known as CPM S30V or simply S30V, is a high-quality stainless steel developed by Crucible Industries. This American-made steel is specifically designed for knife blades, offering an excellent combination of properties that make it a top choice for various cutting tools.

Invented by Chris Reeve and Dick Barber, S30V was introduced in the early 2000s and quickly gained popularity among knife makers and users due to its superior performance. 

As a member of the CPM (Crucible Particle Metallurgy) family, S30V steel is produced using a powder metallurgy process. This method involves melting the steel, then rapidly cooling it to create a fine powder.

The powder is then pressed and sintered under high pressure and temperature, ultimately resulting in a uniform and refined microstructure. The CPM process leads to improved toughness, wear resistance, and edge retention in the final steel product. 

Spyderco Folding Pocket Knife with S30V Knife Steel On Burnt Log

S30V Composition 

The composition of S30V steel includes: 

  • Carbon (C): 1.45%
  • Chromium (Cr): 14.00%
  • Molybdenum (Mo): 2.00%
  • Vanadium (V): 4.00%
  • Manganese (Mn): 0.50%
  • Phosphorus (P): 0.030%
  • Sulfur (S): 0.020%
  • Silicon (Si): 0.50%

This unique blend of elements gives S30V steel its remarkable properties, making it a popular choice for high-quality knives.

Properties of S30V 

When it comes to knife steel, S30V is considered a premium choice for its well-rounded performance. It boasts impressive properties that make it an excellent option for various applications. Let’s take a closer look at the characteristics that make this steel stand out: 


S30V has a high hardness rating of 59-61 HRC, which ensures excellent edge retention and durability. This hardness level also contributes to reduced wear and tear on the blade.


Despite its hardness, S30V steel maintains a good level of toughness that can withstand impacts and resist chipping. This makes it suitable for heavy-duty tasks without the risk of breaking or damage.

Corrosion Resistance

Thanks to its high chromium content (14%), S30V exhibits excellent corrosion resistance. It can withstand exposure to moisture and various corrosive elements, making it a reliable option for outdoor and marine environments.

Edge Holding Ability

The combination of hardness and toughness in S30V steel results in a blade that holds its edge exceptionally well. This means fewer sharpening sessions and consistent cutting performance.

Ease of Sharpening

Although S30V is a hard steel, it is still relatively easy to sharpen compared to other high-end steels. This ensures that maintaining the sharpness of your S30V blade won’t be too time-consuming or challenging.

S30V vs Other Closely Related Knife Steels 

When it comes to comparing S30V steel with other closely related knife steels, it’s essential to consider factors such as edge retention, corrosion resistance, toughness, and ease of sharpening. In this section, we will compare S30V with three popular knife steels: S35VN, VG-10, and D2. 

S30V vs S35VN 

Both S30V and S35VN are high-quality stainless steels produced by Crucible Industries. S35VN is considered an upgrade to S30V, with a few key differences: 

  • Edge Retention: S30V and S35VN steel have similar edge retention, but S35VN has slightly better edge stability due to its niobium content.
  • Corrosion Resistance: Both steels have excellent corrosion resistance, but S35VN has a slight advantage due to its composition.
  • Toughness: S35VN is a tougher steel, making it less prone to chipping and breakage.
  • Ease of Sharpening: S35VN is easier to sharpen than S30V, thanks to its niobium carbides.

S30V vs VG-10 

VG-10 Blade Steel is a popular Japanese stainless steel known for its excellent edge retention and corrosion resistance. Here’s how it compares to S30V: 

  • Edge Retention: S30V has better edge retention than VG-10, making it a more suitable choice for heavy-duty tasks.
  • Corrosion Resistance: Both steels have good corrosion resistance, but VG-10 may have a slight edge due to its higher chromium content.
  • Toughness: S30V is tougher than VG-10, making it less likely to chip or break during use.
  • Ease of Sharpening: VG-10 is easier to sharpen than S30V, but it may require more frequent maintenance to maintain its sharp edge.

S30V vs D2 

D2 is a high-carbon, semi-stainless tool steel known for its excellent wear resistance and edge retention. Let’s see how it stacks up against S30V: 

  • Edge Retention: Both S30V and D2 have excellent edge retention, but S30V may have a slight advantage due to its finer grain structure.
  • Corrosion Resistance: S30V has much better corrosion resistance than D2, which can be prone to rust if not properly maintained.
  • Toughness: S30V is tougher than D2, making it less likely to chip or break during use.
  • Ease of Sharpening: D2 can be more challenging to sharpen than S30V, especially for inexperienced users.

In summary, S30V steel is a high-performance choice for knife enthusiasts, offering a great balance of edge retention, corrosion resistance, toughness, and ease of sharpening. While there are other steels with specific advantages, S30V remains a popular and reliable option for many applications.

How to Care for S30V Steel Knives 

S30V steel knives are known for their excellent edge retention, corrosion resistance, and toughness. But to keep your knife performing at its best and to prolong its life, it’s essential to properly care for it. Follow these simple maintenance tips to keep your S30V steel knife in top shape: 


  • Wipe the blade clean: After each use, gently wipe down the blade with a soft, dry cloth to remove any dirt and debris.
  • Wash when necessary: If your knife is exposed to moisture or used for cutting food, wash it with mild soap and warm water. Be sure to dry it thoroughly afterward to prevent rust formation.
  • Avoid using harsh chemicals: Some cleaning agents can cause damage or discoloration to the blade. Stick to mild soaps and water for cleaning purposes.


  • Store in a dry location: Keep your S30V steel knife in a cool and dry place to prevent corrosion. Avoid storing it in damp or humid areas, such as basements or garages.
  • Use a knife sheath or case: Protect your knife from scratches and physical damage by storing it in a sheath or case designed specifically for your knife model.


  • Use the right sharpening tools: To maintain the sharpness of your S30V steel knife, use a high-quality sharpening stone or a sharpening system specifically designed for this type of steel.
  • Maintain the correct angle: When sharpening your knife, maintain an angle of 15-20 degrees per side for optimal results.
  • Sharpen regularly: Regularly sharpen your knife to maintain its edge and ensure the best cutting performance.

Preventing Corrosion

Although S30V steel is highly resistant to corrosion, it’s still important to take preventative measures to keep your knife looking and performing its best.

  • Apply a thin layer of oil: Periodically apply a thin layer of mineral oil or a dedicated knife oil to the blade to help prevent rust and corrosion.
  • Avoid prolonged exposure to moisture: Do not allow your knife to be submerged in water for an extended period, and dry it thoroughly after cleaning or exposure to moisture.

What are some popular pocket knives that use S30V steel? 

S30V steel is a popular choice for many high-quality pocket knives due to its excellent edge retention, corrosion resistance, and toughness. Here are some of the most popular pocket knives that utilize this premium steel: 

Spyderco Paramilitary 2

One of my favorite knives to carry is the Spyderco Paramilitary 2 which is often made in S30V. I have put a ton of miles on this blade and it has held up to years of use and abuse.

I recently wrote a full review of the Spyderco Paramilitary 2 here, which details everything about this knife you could want to know.

Benchmade Mini Crooked River
A highly versatile folding knife with a comfortable grip and a variety of blade styles, the Crooked River is a well-loved EDC (Every Day Carry) option for many enthusiasts.

Spyderco Manix 2 XL
With its iconic leaf-shaped blade and durable fiberglass handle, the Manix 2 XL is a popular choice for tactical and outdoor use, offering a reliable cutting performance in various situations.

  1. Zero Tolerance 0350
    A sturdy and stylish folding knife with a titanium frame lock, the 0350is designed for hard use and is an excellent choice for those who need a reliable tool in demanding situations.
  1. Buck 110 Auto Elite
    An updated version of the classic Buck 110, this automatic knife features a modern S30V steel blade and a sleek design. Its one-handed operation makes it a convenient option for hunters and outdoor enthusiasts.

These are just a few examples of the many pocket knives available that utilize S30V steel. Each of these models is highly regarded for its durability, edge retention, and overall performance, making them excellent choices for those who demand a high-quality cutting tool.

Is S30V Steel A Good Knife Steel? 

In conclusion, S30V steel is undeniably a top choice for knife steel. Its impressive balance of hardness, toughness, corrosion resistance, and edge retention makes it a popular option for both everyday carry and specialized knives. While it may be slightly more challenging to sharpen, the benefits of using S30V steel far outweigh this minor drawback. When compared to other knife steels, S30V consistently ranks high in performance, making it an excellent choice for anyone seeking a reliable and durable pocket knife.

Crucible Industries Data Sheet Reference

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