Cruwear and Maxamet are two different kinds of steel that are used for making knives and other tools. The two steels offer very different performance benefits. Cruwear is a higher-grade stainless alloy that offers excellent corrosion resistance, wear-resistance and sharpness retention; however, it is also tougher to sharpen and may not hold an edge as long as some other steels. Maxamet is a grade of steel from the high-speed toolsteel family and offers superior edge-holding with excellent toughness for impact resistance. It can be more difficult to sharpen than some other steels but also has superior wear-resistance when compared to Cruwear. Both steels can work well in different applications depending on the user’s priorities; however, they have distinctly different advantages and disadvantages.

History and Origin of Both Steels

CruWear is an American steel grade developed by Crucible Industries, a US-based steel manufacturer. It was developed in 2003, and the intention was to create an alloy with superior wear resistance and toughness compared to existing tool steels available at the time. It has become popular in the knife industry due to its excellent performance, especially for hard use applications such as i.e. self defense knives and EDC blades.

Maxamet is a high speed steel (HSS) developed by the USA-based metallurgy company Carpenter Technology Corporation in 2001. It’s an extremely hard type of alloy designed to outperform previous HSS like M2 and PM M4. With its highest hardness rating around 71 HRC, it’s one of the hardest steels used in knifemaking today and also considerably tougher than most other HSS alloys. It excels at tough cutting tasks, making it a great choice for outdoor or survival knives that need shock absorption while still providing excellent edge retention.

Manufacturing Process of Both Steels

Cruwear and Maxamet are two high-performance cutlery steels produced by Carpenter Technology Corporation. These steels are characterized by their high wear resistance, edge retention, corrosion-resistance, and superior hardness – usually over 60 HRC.

Cruwear is an air-hardening powder steel which has additional alloying elements added classic D2 steel, such as Vanadium, Tungsten, and Molybdenum. During its manufacturing process, Cruwear is heated up to a very high temperature in order to melt and form the alloy steel into shape. The resulting bar of steel is cut into sheets and placed in an oven for hardening in a controlled atmosphere. Further heat treatments refine the structure of the Cruwear steel for superior sharpness and performance before being tempered.

Maxamet is also manufactured by Carpenter Steel Technology Inc. It is similar to Cruwear but its properties make it better suited for hard use conditions than Cruwear. Maxamet is manufactured using a different method than Cruwear; it starts with a base layer of powdered cobalt-enriched stainless steel that is then covered with a matrix material (most likely chromium carbides) made up of other advanced alloys like titanium, molybdenum, vanadium and tungsten. After layering the objects together they are hot-pressed together at very high temperatures which creates metallurgical bonds between them as atoms migrate from one layer to another. After this process they are cooled down at a controlled rate that relieves stresses within the layers; this creates tougher structures from within the layers allowing more wear resistance that lasts longer even when subjected to harder levels of use or abuse. Finally Maxamet undergoes tempering processes which further refine its properties before it can be honed into blades for knives or tools.

Comparison of Physical and Mechanical Properties

Cruwear: Crucible’s CPM-CruWear is a powder metallurgy version of the high-speed tool steel formulated specifically for superior wear resistance. It features high hardness (63-66 HRC) and excellent wear resistance, due to its carbide composition of 0.90–1.20% vanadium, 5.00–6.00% chromium, and 4.50–5.50% tungsten as well as its retained austenite content of 2%. Its uniform quality is further enhanced by its vacuum melt process that eliminates slag inclusions and other material attributes unfavorable to performance.

Maxamet: Maxamet is a powdered metallurgy tool steel made by Carpenter Technology Corp., which makes it unique among the varieties of PM steel available today. It features an exceptionally high amount of carbon (up to 3%), very fine grain structure, and extremely high hardness (68-70 HRC), making it one of the strongest PM steels on the market today. The fine grain structure makes it incredibly resistant to abrasion, while its high percentage of vanadium (2%) promotes toughness and takes advantage of its Austenitic behavior for greater shock resistance in extreme loads like impact applications. The long service life this steel offers rivals that of far more expensive alloys such as M2 or D2 grade tool steels so it’s an excellent choice for those who need better wear resistance but don’t have an unlimited budget for their tools and components.

Heat Treatment Considerations for Each Steel

Cruwear and Maxamet are both high-performance metallurgical steel grades used in knife blades and pocket knives. Both steels offer excellent edge retention and good corrosion resistance, as well as superior toughness via complex alloying elements present in their chemical makeup.

When it comes to heat treatment, the two types of steel require slightly different approaches. Cruwear needs to be heated slowly up to around 1450°C (2642°F) before being quenched hard in oil or water. This produces a tight grain structure with improved wear resistance, toughness and hardness. Maxamet requires much higher temperatures, up to 1500°C (2730°F). It is also important not to exceed this temperature or the metal could become unstable during cooling. After heating, it is cooled quickly either by air or liquid quench with an appropriate media such as water or brine. This allows for similar properties as Cruwear but with increased edge retention when compared side-by-side.

Overall, Cruwear and Maxamet are very similar in terms of performance but differ slightly in heat treatment techniques. Each one offers its own set of features that can make them incredibly useful for knives and other applications where superior wear resistance and durability are desired.

Differences in Hardness, Wear and Corrosion Resistance

Cruwear and Maxamet are both high-end steel grades that are known for their strength and durability but differ somewhat in terms of hardness, wear, and corrosion resistance.

Cruwear is a vanadium steel alloy developed by Crucible which has a Rockwell hardness rating of 61 HRC. It has excellent wear resistance due to its martensitic microstructure composed predominantly of chromium carbides that provide robust protection against abrasion and edge damage. However, it’s not as corrosion-resistant as Maxamet which has an additional iron-rich content that improves its oxidization resistance significantly making it the choice for those seeking a higher level of protection from moisture and adverse conditions..

Maxamet is another popular steel grade developed by Carpenter Technology Corporation whose primary component is cobalt, with other additives such as molybdenum, vanadium, nitrogen and tungsten used to enhance the hardenability and wear properties. It can boast of a 67 HRc rating which makes it one of the hardest steels available currently on the market. While it does have great wear resistance like Cruwear, thanks to its composition containing chromium carbides for abrasion protection, it surpasses it considerably when it comes to corrosion resistance meaning it can be exposed to water or moisture without quickly developing surface rusting or oxidizing easily.

Performance in Different Knifemaking Applications

Cruwear and Maxamet are two different steel alloys commonly used in knifemaking. Cruwear is an air-hardening powdered metallurgy steel with a wear resistance rating of about 92 HRC, making it one of the most durable steels on the market. Maxamet is a relatively new high-speed tool steel from Carpenter Technology Corporation and provides enhanced toughness as well as hardness; it has a rating of up to 70 HRC. Cruwear is typically used for blades that require excellent corrosion resistance such as kitchen knives and sporting knives, while Maxamet is more suitable for heavy use in industrial applications due to its higher hardness levels. Both will hold an edge extremely well and offer great toughness, but we’d recommend Cruwear for knives that will see daily use since it won’t break down or dull for extended periods of time. Additionally, Cruwear also offers excellent corrosion resistance which makes it ideal for wetter environments like marine applications or humid climates. For general use, Maxamet works well as a blade material, but if you need maximum toughness then Cruwear should be your first choice.

Edge Retention and Strength of Each Material

Cruwear and Maxamet are two popular materials used in knives due to their superior edge retention and strength. Cruwear is a particle-metallurgy steel containing higher levels of chromium, molybdenum, and vanadium, which give it excellent wear resistance and strength. When sharpened properly, Cruwear can hold an edge for a long time without having to be sharpened frequently. Maxamet is also a high-end steel alloy composed of carbon vanadium, tungsten and molybdenum that is tough yet incredibly wear resistant with great hardness values of 67 HRC or higher. Maxamet is known for its superior edge retention – the blade may only need to be sharpened once every few months when used regularly – but it does require more frequent honing than Cruwear. In terms of strength both Cruwear and Maxamet are virtually indestructible with the latter being slightly harder. Both materials are perfect choices if you require an impeccably sharp edge that maintains its performance even with extended use.

Recommended Care and Maintenance for Both Materials

Cruwear and Maxamet are both popular materials used to make high-end knives, tools, and other tools. Both materials have distinct properties that make them beneficial for a variety of applications. To ensure the Knife remains in top condition, care and maintenance should be taken for both materials.

For Cruwear blades, it is recommended to use water or soap when washing the blade. Oil should not be used on the blade as this may cause corrosion over time. The blade should also be dried with a soft cloth after washing as leaving moisture can result in rust spots over time. It is best to store Cruwear blades separately from one another and away from any chemicals as these could corrode or discolor the material.

Maxamet blades require more intensive care than Cruwear, as they have much higher wear resistance but tend to be more prone to rusting under certain conditions such as high humidity or salty air. It’s recommended to wipe down your Maxamet blade after each use with a light oil, such as mineral oil or WD40, followed by drying the blade thoroughly with a softmicrofiber cloth before storing it away from direct contact with moisture or humidity sources such as saltwater or humid environments). Additionally, Maxamet blades should also never be washed using dishwashing detergents, scouring powder or abrasive liquids; these will dull the blade over time rather than cleaning it properly.

Comparison of Cost vs Benefit of Each Material

Cruwear and Maxamet are two premium knife steels that are gaining popularity among knife enthusiasts. Both of these steels offer advantages, but there are trade-offs to consider when evaluating the cost vs benefit ratio between them.

Cruwear is widely considered to be one of the most robust and wear-resistant steels available. It is exceptionally hard, offering excellent edge retention and an improved shaving sharpness compared to many other materials. Cruwear also features good corrosion resistance, further increasing its appeal as a reliable material for EDC blades. However, it comes with an expensive price tag which can sometimes be prohibitive for some users, making it out of reach of the average consumer.

Maxamet has similar hardness figures to Cruwear and offers almost identical results in terms of cutting performance and edge retention. It is significantly less expensive than Cruwear when compared on a cost per use basis, and still provides great performance without breaking the bank. On the down side, Maxamet is relatively more prone to corrosion than Cruwear due to its higher chromium content. This means users must often be more diligent in maintenance if using this material versus Cruwear.

Overall, both steels have their benefits and drawbacks that should be considered before making a purchase decision based on cost vs benefit ratio . Choosing the right steel will depend on individual needs so it ultimately comes down to personal preference when selecting a quality material that’s best for you!

Common Mistakes in Working with Each Material

Cruwear: Cruwear is a high performance tool steel, and it is also very hard and difficult to grind. One of the most common mistakes people make when working with Cruwear is trying to use too fine an abrasive for grinding, which can cause the edges to overheat and deform instead of becoming sharper. Additionally, drilling and tapping Cruwear are challenging due to its hardness. It’s important to work at a slow speed any time drilling or tapping to ensure correct thread geometry without breaking the tool.

Maxamet: Maxamet is a high-carbon tool steel containing cobalt and molybdenum for excellent wear resistance. When working with Maxamet it’s important to take care for one key mistake: using lower cutting speeds than recommended by the manufacturer. If you cut too slowly some denser areas of this material may not be machined properly, resulting in a subpar finish and possibly even preventing parts from fitting together properly. Additionally, improper clamping technique may lead to chips flying off during cutting leading to potential injury or damage in the area around your machine tools.


CruWear and Maxamet are two popular blade steels that have distinct advantages and disadvantages. CruWear is a unique steel that has great toughness, wear resistance, and edge retention. Maxamet is one of the hardest knife steels but lacks in corrosion resistance. Both allow for excellent sharpening properties but may require different techniques due to their physical properties. CruWear may be preferable for more applications due to its superior toughness which allows it to perform better under challenging conditions, while Maxamet’s unmatched hardness makes it desirable when exceptional razor sharpness and edge retention are prioritized. Overall, the choice between these two steels comes down to personal preference and the intended application of use.

Resources for Further Reading

Cruwear and Maxamet are two steel alloys that have a variety of applications in knife making. Cruwear is an air-hardened alloy from Hitachi Metals that can achieve extremely hard results with minimal wear resistance while still providing a great ability to hold an edge. Meanwhile, Maxamet is a powdered metallurgy steel alloy made by Carpenter Technology, which has extreme wear resistance and offers a tough cutting edge. Both materials provide excellent edge retention and are highly corrosion-resistant making them very popular options for use in knife crafting.

When comparing Cruwear vs Maxamet, it generally comes down to what specific characteristics one desires in the knife or tool being crafted. If the goal is a harder blade but with less optimal wear resistance, then Cruwear would be the better choice. On the other hand, if more wear-resistance and toughness are desired, then Maxamet would be more suitable. However, each type of steel has its own advantages as well as drawbacks so extensive research should take place before determining which material is best suited for one’s needs.

For further insight into these two types of metal alloys and how they could be used to create knives or other tools, there are several resources Americans can explore:

1)Hitachi Metals Ltd has published multiple articles examining the properties of Cruwear and its possible applications in both traditional Japanese knives as well as modern ones:
2)Carpenter Technology provides detailed information about their proprietary product Super Melt and its beneficial properties when used together with Maxamet:
3)Knife Steel Nerds provides reviews on various blade steels including cru-wear:
4) Knife Magazine offers an overview on non stainless steel knife blades and how they behave compared to stainless steels including maxamet: