Guide to the Best Knife Steel

EN 1.4116 is a stainless grade offered by several steel suppliers, including Acerinox. It makes sense in a kitchen or utility knife when straightforward upkeep matters more than long abrasive cutting life. Look for a useful grind and a clear maker specification rather than treating the grade number as a quality tier.

1075 is a plain-carbon grade supplied by multiple mills, rather than one maker's proprietary knife steel. It is worth considering for a working fixed blade when you accept rust care. Its lower carbon content distinguishes it from 1095, but the maker's treatment and blade geometry decide the useful result.

1084 is a plain high-carbon grade supplied for knife making. It suits a reader who accepts cleaning, drying and occasional oiling as part of owning a carbon-steel blade. Distinguish finished knives from annealed stock, and use the supplier’s instructions if you plan to make the knife yourself.

1095 is a widely supplied high-carbon steel used in traditional and outdoor knives. It is relatively straightforward to resharpen, but needs cleaning and drying and gives up abrasive edge life to wear-focused alloys. Carbon steel does not automatically mean a tougher knife: choose the blade shape and treatment for the work you actually do.

See the knife: ESEE-3, 1095 version. Manufacturer specification for the coated 1095 version, not a stainless ESEE-3 edition.

Alleima 13C26 is a fine-carbide stainless steel with roots in razor blades. It suits buyers who want a keen edge and practical touch-ups rather than maximum abrasive wear resistance. The related 14C28N has a stronger corrosion-resistance focus, so compare those grades alongside the finished knife's grind and treatment.

Alleima 14C28N is a nitrogen-bearing stainless knife steel designed around a fine cutting edge and corrosion resistance. It belongs on the shortlist for everyday, kitchen and outdoor cutting when easy upkeep matters. A thin, well-treated blade is the useful distinction; the name alone does not make every knife an upgrade over 12C27 or 13C26.

See the knife: Kershaw Leek, steel-handle version. The reviewed steel-handle model uses 14C28N; do not confuse it with the copper CPM 154 version.

154CM is a conventional stainless alloy historically developed by Crucible and still documented by suppliers such as Niagara. It is a useful general-purpose folder choice when wear resistance and routine maintenance both matter. CPM 154 uses a powder route with similar nominal chemistry, so check the full label rather than assuming the two names are interchangeable. For knife-level examples, see our Benchmade knives guide.

See the knife: Griptilian, earlier 154CM version. The review covers an earlier 154CM version; other Griptilian versions use different steels.

A bare 420 or 420J listing identifies a family or abbreviated designation, rather than one verified cutting-edge alloy. Ask the knife maker for the exact blade steel, especially on layered blades where the label may refer to an outer layer. SUS420J2 and 420HC have separate entries; neither should lend its properties or rating to an unspecified blade.

This grade has no numerical rating in our chart. The buying notes draw on the linked source.

Source: Carpenter: alloys used for knife blades

420HC is a higher-carbon member of the widely supplied 420 stainless family, used in production knives and multi-tools. It appeals when manageable sharpening and ordinary corrosion care matter more than maximum abrasive edge life. Maker treatment makes a meaningful difference, so compare the actual knife and price rather than buying or dismissing the label.

440A is a standard stainless grade offered by multiple suppliers, including Carpenter. It is worth considering for a practical knife when corrosion care and straightforward sharpening matter more than extended abrasive cutting. Its carbon range differs from 440B and 440C, but that difference is not a ready-made ranking of finished blades.

440B is a standard stainless cutlery grade documented by suppliers such as Carpenter. Its specified carbon range lies between 440A and 440C, without establishing an automatic middle place in knife performance.

440C is a widely supplied stainless grade that remains useful for a general-purpose knife. Its higher carbon content distinguishes it from 440A, while the maker's treatment and grind determine how the edge behaves. It can be a sensible purchase without being the newest alloy; compare cutting geometry, sharpening needs and price.

5160 is a chromium-bearing spring-steel grade supplied by multiple mills and used in large blades. It deserves attention for a well-designed chopper when toughness matters and rust care fits your routine. The spring-steel label is no promise that a finished knife will survive twisting, prying or other abuse.

52100 is a widely supplied high-carbon bearing steel that knife makers also use for fine cutting edges. It can offer a useful cutting and toughness balance, but it is not stainless. Look for the maker's treatment and edge geometry, and expect to clean and dry the blade after use.

80CrV2 is a low-alloy chromium-vanadium steel supplied by multiple producers, including SIJ in its corresponding grade range. It is worth considering for an outdoor fixed blade when a working edge and toughness matter more than stainless upkeep. Treatment and geometry remain decisive, and the exposed blade needs rust care.

8Cr13MoV is a Chinese-designated stainless grade used in many value-focused folders, rather than a single producer's trademark. It can suit everyday utility when quick touch-ups matter more than long abrasive cutting life. Judge the grind, lock, handle and maker support alongside price; the steel name alone does not establish a bargain or a poor cutter.

See the knife: Kershaw Shuffle 8700. Manufacturer page documents this 8Cr13MoV model. Check its current offer and specifications.

9Cr18MoV is a Chinese-designated stainless knife-steel grade, with more than one possible supplier. It is distinct from 9Cr18, and the designation alone does not establish a powder process. For a knife purchase, verify the full blade specification and treatment rather than importing performance claims from a similar name.

A2 is a widely supplied air-hardening tool steel with a useful balance between simpler carbon steels and wear-focused D2. It can suit a working fixed blade when you accept non-stainless care. Check the maker's heat treatment and edge thickness before treating that material balance as a guarantee against chipping.

Uddeholm AEB-L is a stainless strip steel developed for sharp cutting edges, including razor and scalpel applications. It belongs on the shortlist for a thin kitchen or utility blade when a keen edge matters more than maximum abrasive wear resistance.

Alleima 12C27 is a conventional stainless knife steel for a keen, maintainable edge. It can suit pocket, fishing and kitchen knives when useful cutting geometry and manageable upkeep take priority over maximum abrasive wear. Compare the maker's actual grind and treatment rather than treating its fine-carbide design as a complete knife specification.

Alleima 19C27 is a coarse-carbide stainless steel aimed at abrasive cutting. It differs materially from the fine-edge 13C26 design, so it is worth a look when wear is the main concern. Choose a suitable blade grind and maintain ordinary corrosion care rather than assuming all Alleima knife steels behave alike.

AR-RPM9 is Artisan/CJRB's brand-named blade steel. Brand descriptions conflict over powder metallurgy and spray forming, while independent tests found 9Cr18MoV-like chemistry without a conventional powder-metallurgy structure in the tested knives. Judge the actual knife and its documented performance; the branding is not enough to establish a production route or premium edge life.

ATS-34 is a stainless grade documented by Proterial, formerly associated with Hitachi's specialty-steel range. Its nominal alloy is similar to 154CM and it has genuine folding-knife history. For an older or current knife, condition, grind and treatment matter more than reputation; avoid assuming a fixed corrosion advantage over 440C.

ATS-55 is a stainless blade steel made by Hitachi for Spyderco. It is a different recipe from ATS-34. When considering an older knife, check the blade marking, remaining edge and condition rather than treating its age or rarity as a performance rating.

Aichi's AUS-10 is a stainless blade grade used in everyday knives. It belongs in a comparison of practical cutting edges, with the maker's grind and heat treatment doing much of the deciding. Keep it separate from Cold Steel's AUS-10A designation unless the maker documents the relationship for the exact knife.

AUS-10A is the blade designation used by Cold Steel on some stainless knives. Start with the exact model specification and the complete knife's geometry, rather than borrowing a rating from AUS-10 or AUS-8. The naming relationship does not establish identical treatment, cutting life or sharpening behavior.

This grade has no numerical rating in our chart. The buying notes draw on the linked source.

Source: Cold Steel: blade materials including AUS 10A

AUS-6 is a stainless blade designation seen in simpler production knives. Aichi's current blade-steel page lists AUS-6M, so do not assume an unspecified AUS-6 knife uses that exact variant. A well-ground example may suit everyday work and routine touch-ups; check the maker's full specification before drawing precise alloy comparisons.

This grade has no numerical rating in our chart. The buying notes draw on the linked source.

Aichi's AUS-8 is a stainless blade grade with a long production-knife history. It can be a practical choice when manageable sharpening and a useful everyday edge matter. Claims that it always beats a particular 440-series knife ignore heat treatment and geometry, so compare the finished blades and price.

BECUT is BESTAR's niobium-bearing stainless blade material, with documented bowl-cutter and chef-knife applications. That makes it relevant to kitchen cutting rather than just a name on a steel chart. The producer's intended use is useful context, but retail blade geometry and treatment still decide how a particular knife cuts.

BG-42 is a vacuum-melted stainless alloy documented by Carpenter and used in older knives. It offers a distinct wear-focused alternative to simpler stainless grades. When shopping for an older blade, check condition and treatment as well as the alloy; a reputation earned by one maker does not establish every example's performance.

Böhler K110 is a named D2/1.2379 product rather than a separate alloy category. It can suit repeated slicing when you accept the corrosion care associated with D2. The producer specification gives a clearer starting point than an unspecified D2 label, but the knife's grind and heat treatment still matter.

Böhler K340 is an 8% chromium tool-steel family with ISODUR and ECOSTAR variants. Ask which version a knife maker uses before comparing its properties. It is a non-stainless working-blade option, but industrial tool claims do not establish the edge life or chipping resistance of an unspecified knife.

Böhler K390 Microclean is a powder tool steel aimed at high abrasive wear resistance. It can reward repeated slicing when you are willing to keep a non-stainless blade clean and dry and spend more time sharpening. Choose it for that task, with suitable abrasives and blade geometry, rather than as a universal upgrade.

Böhler M398 Microclean is a highly carbide-rich powder stainless steel focused on abrasive cutting life. It is worth considering for sustained slicing when wear is the main concern. That emphasis comes with toughness and sharpening tradeoffs, so compare edge geometry and your sharpening setup before paying for the alloy.

Böhler N680 is a nitrogen-bearing stainless grade relevant to regular moisture or salt exposure. It is worth comparing for fishing or wet carry, but the steel does not make the blade, fasteners and handle corrosion-proof. Check the exact knife, rinse and dry it appropriately, and compare current prices rather than relying on old marine-steel price rankings.

Böhler N690 is a conventional stainless blade steel for a practical working edge and ordinary corrosion care. It can suit daily carry when the complete knife fits your cutting tasks. Its alloy specification does not establish the maker's heat treatment or edge thickness, so those are useful checks before buying.

CPM 10V is a high-vanadium powder tool steel historically developed by Crucible and documented by Niagara. It targets abrasive cutting life, with non-stainless care and more demanding sharpening as the costs. Consider it for repeated slicing when those tradeoffs fit your routine, rather than borrowing a toughness promise from other CPM tool steels.

CPM 154 is a powder-route counterpart to the conventional 154CM alloy concept, historically developed by Crucible. The more uniform carbide distribution is the important distinction, rather than a dramatic change in nominal chemistry. It is a useful stainless option for an everyday knife, but choose the actual grind and treatment and check that the listing really says CPM 154.

See the knife: Kershaw Leek Copper 1660CU. Manufacturer identifies CPM 154 and marks this version discontinued. Reference example only.

CPM 15V is a vanadium-rich powder tool steel historically developed by Crucible and documented by Niagara. It emphasizes abrasive cutting life for controlled slicing. Expect non-stainless care, demanding sharpening and a toughness tradeoff; the alloy makes more sense when those costs solve a real wear problem in your work.

CPM 3V is a powder tool steel historically developed by Crucible, with Niagara's sheet emphasizing impact toughness and wear resistance. It belongs on the shortlist for a tougher working blade when edge damage is a concern. It is not stainless, and suitable geometry remains essential; the grade is no blanket hard-use guarantee.

See the knife: Kershaw Bel Air XL 6110OL, CPM 3V. Manufacturer specifies CPM 3V for the olive 6110OL version. Other Bel Air editions use different steels.

CPM 4V is a non-stainless powder tool steel historically developed by Crucible and documented by Niagara. It raises abrasive wear resistance over CPM 3V while retaining a toughness-oriented design. Consider it for a working knife when you accept rust care, then compare the maker's treatment and edge rather than assuming the alloy alone determines durability.

CPM CRU-WEAR is a powder tool-steel grade historically developed by Crucible, documented by Niagara for a balance of wear resistance and toughness. It can suit a working folder or fixed blade when you accept non-stainless care. Keep it separate from conventional CRU-WEAR, and check the maker's grind and treatment before making a hard-use claim.

See the knife: Spyderco Shaman, CPM CRU-WEAR sprint run. This review covers the natural-Micarta sprint run.

CPM D2 is the powder-route version of the D2 alloy concept, historically associated with Crucible. It is distinct from ordinary conventional D2 even where nominal chemistry is similar. For repeated slicing, compare the maker's grind and treatment and plan for corrosion care; the production route does not create an automatic knife-performance score.

CPM M4 is a high-alloy powder tool steel historically associated with Crucible and documented by Niagara. It can suit wear-focused cutting when rust care and more demanding sharpening fit your routine. A coating protects covered surfaces, but the exposed edge still needs attention; compare the maker's grind and treatment for the work you plan to do.

CPM REX 121 is a highly alloyed powder tool steel in the historical Crucible range, with a supplier sheet from Zapp. It sits at the extreme of the shared abrasive-wear ratings. Consider it for specialized controlled slicing, with substantial toughness, rust-care and sharpening costs, rather than for a general-purpose knife upgrade.

CPM S110V is a high-wear powder stainless steel historically developed by Crucible and documented by Niagara. It can suit repeated abrasive slicing when edge life matters more than quick sharpening or toughness. Plan for suitable abrasives and compare the actual grind; our Spyderco Military S110V review is a knife-level example, not proof for every S110V blade.

CPM S30V is a powder stainless grade historically developed by Crucible and documented by Niagara. Its production-folder history makes it a useful reference for everyday wear resistance and corrosion care. Check the actual edge thickness and treatment when comparing it with S35VN or a simpler stainless knife, and factor in your sharpening equipment.

See the knife: Benchmade Bugout, S30V version. The reviewed Bugout uses S30V; verify any current or special-edition listing.

CPM S35VN is a niobium-bearing refinement of S30V historically developed by Crucible and documented by Niagara. It is a practical stainless option for a daily folder when wear resistance and corrosion care both matter. Grind and heat treatment can outweigh the family difference, so compare the finished knives rather than assuming S35VN or the newer S45VN must be better.

See the knife: Sebenza 31, earlier S35VN version. This review covers an earlier S35VN version; other Sebenza versions use different steels.

CPM S45VN is a powder stainless grade historically developed by Crucible and documented by Niagara. It revises S35VN's chemistry with more chromium and added nitrogen, targeting wear resistance with improved corrosion performance. Consider it for everyday carry, but identify whether rust, wear or edge damage is your real problem before treating it as an upgrade.

See the knife: Umnumzaan, reviewed S45VN version. The linked review identifies S45VN; newer editions may differ.

CPM S60V, formerly CPM 440V, is a high-carbide powder stainless grade from the historical Crucible range. It favors abrasive wear resistance and appears in older cutlery. Check the blade's condition and maker treatment, and allow for sharpening effort and a toughness tradeoff rather than transferring its steel rating directly to a used knife.

CPM S90V is a vanadium-rich powder stainless grade historically developed by Crucible and documented by Niagara. It is worth considering when repeated abrasive slicing matters more than quick touch-ups. Suitable abrasives help with sharpening, while heat treatment and edge geometry determine whether the particular knife delivers the cutting life you want.

See the knife: Benchmade 940-1, S90V version. Specific carbon-fiber 940-1 review. Not every 940 uses S90V.

CPM SPY27 is Spyderco's proprietary powder stainless blade steel. It is offered in the Mule Team 2 and folders, so the useful decision is which knife design suits your cuts. Keep its own specification separate from related grades; the proprietary name does not establish the treatment or geometry of every blade.

CPM 20CV is a high-alloy powder stainless grade in the historical Crucible range, documented by Niagara. It is closely related in nominal chemistry to M390 and CTS-204P and suits wear-focused slicing. Those similarities do not make finished knives equivalent: compare edge thickness, treatment, sharpening effort and price.

See the knife: Pro-Tech Malibu, CPM 20CV version. Review of the reverse-tanto 20CV model; other Malibu versions use different steels.

CPM MagnaCut was designed by metallurgist Dr. Larrin Thomas for a balance of corrosion resistance, toughness and abrasive edge retention; Niagara publishes its technical sheet. It belongs on the shortlist for mixed everyday cutting, sweat and food preparation. Choose it for that balance, then check the maker's grind and hardness rather than expecting it to outlast every wear-focused steel.

See the knife: Hogue Deka, MagnaCut version. Included in KI's MagnaCut buying guide. Check the steel on the exact listing.

Conventional CRU-WEAR is the non-powder member of the Crucible alloy family, documented separately by Niagara. It can be relevant to a working blade, but shares neither a production route nor an automatic score with CPM CRU-WEAR. Verify the full listing and plan for non-stainless care before comparing finished knives.

CTS-204P is Carpenter's high-wear powder stainless blade alloy. Its nominal chemistry is similar to M390 and CPM 20CV, making it relevant to repeated slicing when you accept more sharpening effort. Compare the particular knife's treatment and edge thickness; related chemistry does not make those three grades interchangeable knife specifications.

CTS-BD1N is Carpenter's nitrogen-bearing stainless blade alloy. It is a separate grade from CTS-BD1, so keep the full name when looking up a knife or comparing ratings. The nitrogen addition is a composition distinction, rather than permission to transfer scores between the two grades.

CTS-BD1 is Carpenter's stainless blade alloy used in everyday knives. It can be a practical choice when the complete knife cuts well and routine upkeep suits you. Compare grind and treatment alongside AUS-8 or 8Cr13MoV rather than assuming a fixed edge-life ranking, and keep it separate from the nitrogen-bearing CTS-BD1N.

CTS-XHP is Carpenter's high-alloy powder blade steel with a wear-focused cutting balance. Although commonly classified as stainless, its corrosion behavior is more limited than highly corrosion-resistant knife steels. It can suit a folder when you accept that care and extra sharpening effort; compare the actual edge and treatment with the alternatives you would buy.

GIN-1, also called Gingami 1 and marked G-2 on some Spyderco knives, is a stainless cutlery steel associated with Hitachi. Its practical appeal today often lies in a knife you already own or an older model you want. Check condition and edge shape; GIN-3 is a different grade.

H-2 is the distinct blade material that replaced H-1 in Spyderco's Salt lineup after a supply change. It is relevant to wet and saltwater use, but is not an H-1 score under a new name. Compare the exact model and edge type, and care for the knife's hardware as well as its blade.

H-1 is a corrosion-focused blade material documented in Spyderco's Salt knives. It is worth considering in an existing knife for fishing, boating or other wet use, with attention to the edge type and hardware. Check the current model's specification: later H-2 blades have a separate identity, and cutting life depends on the particular edge and task.

M2 is a non-stainless high-speed tool steel containing molybdenum, tungsten and vanadium. The industrial name is not a promise about a knife’s cutting speed. Consider the finished blade’s treatment and geometry, and allow for corrosion care around the exposed edge.

M390 Microclean is Böhler's high-alloy powder stainless steel aimed at wear and corrosion resistance. It can suit extended slicing when you accept more sharpening effort. Its nominal chemistry is close to CPM 20CV and CTS-204P, but compare the maker's hardness and grind before treating knives in those grades as equivalent.

See the knife: Hawk Talon, M390 version. The linked review identifies M390. This is a specific reviewed configuration.

MagnaMax is a powder stainless knife steel developed by Dr. Larrin Thomas for greater abrasive edge retention than MagnaCut. His ratings are 7.5 for edge retention, 6 for toughness and 9.5 for corrosion resistance. It suits wear-focused slicing when you are willing to put more work into sharpening. Check the exact knife’s heat treatment and grind; early prototype material is not interchangeable with the final grade. Development and testing.

Maxamet is Carpenter's high-alloy powder tool steel, designed for high hardness and wear resistance. It is a specialized non-stainless choice for long abrasive cutting, with rust care, toughness and sharpening tradeoffs. Check the maker's blade geometry and your abrasives before buying; the producer description does not establish a fixed advantage over an S110V knife.

Micro-Melt PD#1 is Carpenter's powder cold-work tool steel. It is relevant when a knife maker specifies it for a working blade, with non-stainless care part of the choice. Start with that maker's treatment and edge geometry and the separate source-backed profile; we do not borrow a numerical score from a related alloy.

Niolox is Lohmann's niobium-bearing corrosion-resistant blade steel. Its producer data is a useful starting point for a working knife. We do not assign a numerical edge-life or toughness rating where the shared evidence does not provide one.

Nitro-V is a fine-structured stainless steel related to AEB-L, documented by New Jersey Steel Baron and independent metallurgy research. It suits a toughness-oriented cutting balance rather than exceptional abrasive edge life. Its small vanadium addition is not evidence of a large hard-carbide fraction; compare 14C28N when corrosion is a priority and check the actual grind.

See the knife: CIVIVI Vision FG, Nitro-V version. The review specifies a Nitro-V blade with Micarta handle.

SK-5 is the familiar former designation for SK85, a carbon tool-steel grade supplied by multiple producers. It can suit a practical working blade when you accept rust care. Check the maker's grind and treatment; a standard grade name does not identify one supplier, hardness or level of durability.

Super Gold 2, or SG2, is Takefu's powder stainless knife steel. It is worth considering for kitchen work and fine slicing when abrasive edge life matters. The maker's heat treatment and grind are the useful checks, especially for a thin blade; a steel rating does not establish resistance to chipping in a particular kitchen knife.

SUS420J2 is a specific Japanese-standard stainless designation, offered by producers such as Aichi. It can serve as a functional lower-cost blade, but the label alone does not establish edge life. Check that it describes the cutting core rather than another layer or component, and keep it separate from unspecified 420 and 420HC listings.

Vanax SuperClean is Uddeholm's nitrogen-rich powder stainless steel with a strong corrosion-resistance focus. It belongs in a comparison for wet use when ordinary stainless care is not enough for the environment. Check the full SuperClean designation rather than assuming older Vanax names share its chemistry, and compare the complete knife with LC200N and MagnaCut alternatives.

See the knife: Quiet Carry Wady CFSW, Vanax. Quiet Carry lists Vanax steel and carbon fiber for this version.

Vancron SuperClean is Uddeholm's nitrogen-alloyed powder tool steel, used by specialist knife makers. It can reach high hardness, but it is not stainless and needs corrosion care. Industrial anti-galling claims are not a knife edge-life ranking, so use the maker's blade specification and documented knife evidence when considering it for cutting.

VG-10 is Takefu's stainless knife steel, used in both folders and kitchen knives. It can support a fine cutting edge, but treatment and grind determine how an individual blade cuts, chips or responds to touch-ups. Compare the actual blade and care needs rather than treating its long history as a guarantee of performance.

See the knife: Spyderco Delica 4, VG-10 version. The review identifies VG-10; special editions need their own steel check.