Knife Materials

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Blade Steel:
CPM S35VN

CPM S35VN steel, developed by Crucible Industries in 2009, is an upgraded version of the popular CPM-S30V, crafted specifically to enhance both toughness and machinability without compromising on edge retention or corrosion resistance. The steel’s unique properties have made it highly favored among knife makers and enthusiasts for its balance of strength, durability, and cutting performance. In this article, we’ll delve into the history, composition, and optimal heat treatment...

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Previous Articles

Blade Steel: 440

Known for its good balance of durability, sharpness, and corrosion resistance, 440 stainless steel has become a favorite among knife enthusiasts and manufacturers. 440 stainless steel is a family of alloy steels containing varying amounts of carbon, chromium, and other elements. The 440 series is typically composed of three main variants: 440A, 440B, and 440C. Each variant has slightly different compositions, resulting in varying hardness levels, corrosion resistance, and edge retention...

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Blade Steel: 52100

The origins of 52100 steel trace back to around 1905 when it was first introduced for use in roller ball bearings. Originating from Germany and France, these early chromium alloy steels, initially known as 5295, marked a shift in the materials used for bearings. 52100 has gone by various names, such as 100cCr6, 1,3505, 14116, GCr15, and SUJ2. In 1919, it officially became known as 52100 under SAE (Society of Automotive Engineers) International designations. Despite being a lesser-known steel, it has gained prominence in the realm of...

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Blade Steel:
8Cr13MoV

8Cr13MoV is often considered the Chinese counterpart to AUS-8, with a nearly identical chemical composition. The naming convention for these steels is highly descriptive. The first number, in this case, “8,” refers to the approximate carbon content, around 0.8%, which influences hardness and strength. “Cr13” indicates the chromium content at 13%, which is responsible for the steel’s stainless properties. The "Mo" refers to a small amount of molybdenum added to enhance toughness, grain refinement, and corrosion resistance. Lastly...

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Blade Steel:
Bohler M390

Bohler M390 is celebrated in the knife industry for its superior performance attributes, making it a top choice for high-end blades. This steel is known for its remarkable wear resistance, corrosion resistance, and edge retention. These qualities stem from its unique composition, which combines several elements in specific proportions to enhance its overall properties.

M390 is martensitic stainless steel, which means it has a high hardness level and offers excellent corrosion resistance...

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Blade Steel:
CPM Cru-Wear

Cru-Wear occupies a unique niche in the realm of knife steels. It boasts a reputation for achieving a near-perfect harmony between two crucial properties – toughness and wear resistance. This delicate balance makes Cru-Wear a compelling choice for blades tasked with demanding applications.

Understanding Cru-Wear's effectiveness necessitates exploring its composition. Unlike some traditional steels, Cru-Wear is crafted through a process known as powder metallurgy. This technique offers several advantages, including the creation of a uniform and consistent grain...

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Blade Steel:
CPM D2

In the world of knives, the choice of blade steel is a critical factor that can significantly impact performance, durability, and overall functionality. The creation of Crucible Industries' CPM (Crucible Particle Metallurgy) technology has paved the way for a refined version of D2 tool steel, known as CPM-D2.

D2 tool steel, originally invented in the early 20th century, has long been recognized for its high carbon content (1.55%) and a substantial amount of chromium (12%). While offering remarkable...

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Blade Steel:
CPM MagnaCut

For centuries, knifemakers have tirelessly pursued the perfect blade steel, a material that offers an ideal balance of hardness, edge retention, toughness, and corrosion resistance. While numerous steel alloys have emerged throughout history, each often excels in one area at the expense of another. Enter MagnaCut, a revolutionary steel designed specifically for the knife industry, promising a near-mythical equilibrium of these crucial properties.

This article delves into the history of MagnaCut, explores its unique composition, and examines why it's quickly becoming a preferred steel among knife enthusiasts and professionals alike...

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Blade Steel:
CPM S30V

The inception of S30V dates back to the early 2000s. Crucible Industries, a leader in the production of high-grade steel, aimed to create a new type of steel that would meet the rigorous demands of knife users. Partnering with knife maker Chris Reeve, they embarked on developing a blade steel that could deliver exceptional performance in various conditions. S30V is a martensitic stainless steel, characterized by its hardness and ability to be heat-treated. Its composition includes elements like carbon, chromium, molybdenum, and vanadium...

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Blade Steel: Uddeholm Vanax

Emerging in 2006, Vanax35 and Vanax75 served as early iterations, showcasing the immense potential of nitrogen-based steels with their unparalleled corrosion resistance. However, their focus remained firmly on industrial environments. 2017 marked a pivotal moment, with the unveiling of Vanax Super Clean (also known as Vanax 37) at the Blade Show. This marked a strategic shift for Bohler-Uddeholm, signifying their commitment to environmental sustainability and entry into the world of high-performance cutlery. This latest generation steel promised more than just impressive toughness; it embodied a dedicated pursuit of crafting exceptional blades...

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Damascus Questions

In the intricate world of blades and knives, Damascus steel often emerges as a subject shrouded in mystery and allure. Known for its distinctive patterns, resilience, and historical significance, Damascus steel continues to intrigue both enthusiasts and skeptics alike. With myths and facts intertwined, understanding the true essence and capabilities of Damascus steel is crucial for appreciating its modern applications and dispelling the misconceptions surrounding it.

One prevailing myth suggests that today's Damascus steel is fundamentally different...

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Damasteel

Damasteel AB, established in 1995, is a Swedish company known for producing high-performance patterned steel through a unique powder metallurgy process. The company originated from a partnership between Per Billgren, an Erasteel employee, and master blacksmith Kaj Embretsen, who sought to develop a modern alternative to traditional Damascus steel. Their collaboration resulted in a proprietary method for creating stainless patterned steel with exceptional durability and aesthetic appeal, revolutionizing the steel...

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Rockwell
Hardness Scale

The Rockwell Hardness Scale is one of the most important tools in metallurgy, engineering, and manufacturing. It provides a quantifiable measure of a material's hardness, giving engineers and manufacturers a reliable means of assessing the suitability of materials for specific applications. In knife making, the Rockwell scale is indispensable in determining how well a certain steel will perform under various conditions, such as edge retention, toughness, and resistance to wear...
 

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Our Experts

T.C. Barnette

T.C. Barnette

T.C. Barnette is a dynamic media personality and the esteemed spokesperson for SMKW (Smoky Mountain Knife Works), where his passion for knives intersects with his captivating on-screen presence. With a magnetic charisma and deep expertise in cutlery, T.C. has become a beloved figure in the knife community.