From the Spyderco News Letter
Since we made our first knife nearly 35 years ago, Spyderco has developed a well-earned a reputation for “pushing the envelope” of cutting tool performance in every way possible. One of our most significant accomplishments in this field has been our concerted effort to introduce exotic, state-of-the-art steels into the realm of factory-made knives.
Through our close working relationships with both U.S. and international steel manufacturers, Spyderco consistently offers one of the broadest selections of blade steels in the industry. As we move into 2015, our spectrum of steels will expand even further to include several exciting new high-performance steels. Here’s a sneak peek of what to expect and some insights into what makes these unique alloys so special.
Carpenter® CTS® B70P
CTS B70P is a high-chromium air-hardening steel that is a powder metallurgy derivative of Carpenter’s CRB-7® alloy. It offers comparable corrosion resistance to 440C—long an industry standard—but with the advantages of enhanced wear resistance and increased hardness capability. The addition of molybdenum, vanadium, and niobium to this advanced alloy, in conjunction with the uniform carbide structure that results from the powder metallurgy process, greatly improve edge retention. Its alloy composition also enhances this steel’s grinding and polishing characteristics, making it an ideal material for high-performance knife blades.
Crucible/Latrobe CPM 20CV
CPM 20CV contains the highest amount of chromium of any high-vanadium stainless steel currently available. It contains a large volume of extremely hard vanadium carbides that give it excellent wear resistance and edge-holding capability. At the same time, its 20.00% chromium content makes it extremely corrosion resistant and easy to polish. And because it is a powder metallurgy steel, these properties are enhanced through the benefits of a fine, uniform grain size and an extremely clean microstructure. The result is a superior steel that combines wear resistance, corrosion resistance, and toughness into a material that is tailor made for knife blades.
RWL-34 is a martensitic stainless steel produced by the Rapid Solidified Powder (RSP) process. A martensitic variant of the 420 stainless steel family, it combines a minimum of 13% chromium with molybdenum and vanadium to yield a corrosion-resistant steel that also has high hardenability and excellent grinding and polishing characteristics. Collectively, these qualities give it all the traits necessary in a high-performance knife steel.
Carpenter Micro-Melt® Maxamet® Alloy
Maxamet is a high-alloy powder metallurgy tool steel that outperforms conventional tool steels and possesses many of the performance qualities of cemented carbide materials Its alloy composition features over two percent carbon and high amounts of vanadium, cobalt, and tungsten. The result is an ultra-high-performance tool steel that maintains good toughness, even at high hardness levels.
As metallurgical advances continue to yield steels that offer higher and higher levels of performance, you can count on Spyderco to make these materials available to you in our world-class knives. We remain committed to making our best even better. Spyderco anticipates using each one of these steels in our Mule Team series in 2015.