Blade Steel: 8Cr13MoV

Blade Steel: 8Cr13MoV

Published: November 6th, 2024

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, “V” signifies the presence of vanadium, which helps improve wear resistance and refine the grain structure of the steel.

Composition

Carbon - 0.7-0.8%

Chromium - 13-14.5%

Molybdenum - 0.1-0.3%

Vanadium - 0.1-0.25%

Manganese - 1%

The relatively simple yet balanced composition of 8Cr13MoV allows it to offer a good mix of hardness, corrosion resistance, and toughness at a lower cost compared to premium steels. However, it's important to remember that no steel is perfect in every way, and 8Cr13MoV has both strengths and weaknesses.

Understanding the properties of 8Cr13MoV steel helps explain its widespread use, particularly in budget-friendly knives. This steel strikes a balance between hardness, toughness, and corrosion resistance, which has made it a popular choice for various knife manufacturers.

One of the most important aspects of 8Cr13MoV is its hardness. Typically falling between 56 and 59 on the Rockwell C scale (HRC) after heat treatment, this hardness level is moderate and allows the steel to maintain a sharp edge while avoiding brittleness. It is hard enough for most general-purpose tasks and is suitable for a wide range of knives, including folding knives, general utility blades, and kitchen cutlery.

In terms of edge retention, 8Cr13MoV performs reasonably well, although it does not quite match the capabilities of premium steels like S30V or VG-10. This means that while a knife made from 8Cr13MoV will stay sharp for a good amount of time, it will need to be sharpened more frequently than its higher-end counterparts. However, this steel's advantage lies in how easy it is to sharpen. Even with basic tools, restoring a sharp edge is quick and straightforward, which is a major selling point for many users who value convenience and ease of maintenance.

Another aspect worth noting is 8Cr13MoV's toughness. Toughness refers to a steel's ability to withstand impacts or stress without chipping or breaking. While 8Cr13MoV does not boast the extreme toughness of steels like 5160 or 1095, it is tough enough for most everyday tasks. Whether you're cutting, slicing, or performing general utility work, 8Cr13MoV will hold up under moderate use, making it a reliable choice for many knife owners.

8Cr13MoV is highly versatile and used across a wide range of knives, from everyday carry (EDC) blades to kitchen knives. For EDC knives, 8Cr13MoV offers a good balance of performance, affordability, and ease of maintenance. Brands like Kershaw, Spyderco, Cold Steel, CRKT, and more have used this steel in many of their budget-friendly models, as it provides the durability and edge retention required for tasks like cutting rope, opening packages, or even light food prep. It’s a reliable choice for those who need a knife that performs consistently without breaking the bank.

8Cr13MoV steel strikes an excellent balance between hardness, toughness, corrosion resistance, and ease of sharpening. Its versatility makes it a popular choice for everyday carry knives, budget-friendly blades, and kitchen cutlery alike. While it may not have the extreme edge retention or toughness of more premium steels, it remains a practical option for those who prioritize affordability and ease of maintenance. Whether you are a seasoned knife enthusiast or someone looking for a reliable, cost-effective blade, 8Cr13MoV steel is certainly worth considering.

Written by Drew Clifton


What to Buy

The Kershaw Natrix XL is a robust everyday carry knife featuring a 3.75-inch 8Cr13MoV stainless steel blade with a black oxide finish for durability and corrosion resistance. Its drop-point blade design offers versatile cutting power, while the plain edge ensures clean, precise cuts. The knife operates on KVT ball bearings for smooth, effortless manual opening via the flipper tab. The black G-10 handles are 3D-machined for enhanced grip and style, complemented by a G-10 backspacer. A sub-frame lock secures the blade, and the deep-carry reversible pocket clip ensures convenient, discreet carry. This well-balanced knife measures 8.75 inches overall and weighs 4.1 ounces.


The Spyderco Persistence combines practicality and performance in a compact design. Featuring a 2.77" drop point blade made from 8Cr13MoV stainless steel, it delivers excellent edge retention and corrosion resistance. The satin finish enhances cutting efficiency, while Spyderco's signature thumb hole allows for smooth one-handed deployment. The liner-lock mechanism ensures secure blade engagement during use, and the black G-10 handle provides a comfortable, slip-resistant grip. With a four-position stainless steel pocket clip for versatile carry options, the Persistence is an ideal everyday carry tool, measuring 4.13" closed and weighing 3.7 ounces.


The CRKT S.P.I.T. (Small Pocket Inverted Tanto) is a compact fixed blade featuring a 2.29" 8Cr13MoV high carbon stainless steel inverted tanto blade with a dual stonewash and satin finish. Its vibrant orange G-10 handle ensures a secure grip and high visibility, while the full tang construction offers durability in a lightweight 1.9oz design. At 5.48" overall, this knife is highly portable and comes with a thermoplastic sheath for easy carry. Designed by renowned knifemaker Alan Folts, it combines functionality with a sleek, modern aesthetic for everyday use.


Expert Reviewed

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.