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    • CPM S35VN

    CPM-S35VN Knives: The Stainless Steel That Gets the Balance Right

    CPM-S35VN is a powder metallurgy stainless steel developed by Crucible Industries in collaboration with knife maker Chris Reeve, released in 2009 as a direct upgrade to CPM-S30V. The addition of niobium carbides alongside vanadium carbides produces a tougher, more refined steel that is easier to sharpen than CPM-S30V without sacrificing edge retention — an improvement that made it the default stainless steel for serious production knives for over a decade.

    At Knifeworks, you are buying from an authorized dealer: every CPM-S35VN knife on this page ships with full manufacturer warranty coverage — Benchmade LifeSharp (free lifetime sharpening and mechanical repair), Spyderco's manufacturer warranty, and CRKT's lifetime warranty against defects. No gray-market sourcing, no voided warranties.

    CPM-S35VN holds a working edge through months of hard EDC use, resists corrosion better than tool steels and most mid-grade stainless steels, and sharpens on standard diamond stones without the frustration of high-vanadium steels like M390. It is the reason Benchmade built their AXIS Lock line around it and Spyderco uses it across their mid-tier and upper-tier production range.

    Why CPM-S35VN replaced CPM-S30V as the production standardCPM-S30V used only vanadium carbides for wear resistance, which gave it excellent edge retention but made it prone to micro-chipping at acute angles and difficult to sharpen cleanly. CPM-S35VN adds niobium to the mix, producing smaller, more evenly distributed carbides. The result is a tougher steel that finishes to a keener edge and refines more predictably on a whetstone — same edge life, better edge quality.

    Call 888-225-9775 — our team can help you choose the right CPM-S35VN model.

    Steel type
    PM Stainless
    Produced by
    Crucible Industries
    Typical hardness
    59–61 HRC
    Toughness
    High
    Corrosion resist.
    High
    Upgrade from
    CPM-S30V
    Compare Selected

    CPM-S35VN Steel: Frequently Asked Questions

    What is CPM-S35VN steel?＋

    CPM-S35VN is a powder metallurgy stainless steel produced by Crucible Industries, developed with input from custom knife maker Chris Reeve and released in 2009. It is a direct upgrade to CPM-S30V, adding niobium to the alloy alongside vanadium to produce smaller, more uniformly distributed carbides. The result is a steel with the same strong edge retention as CPM-S30V but meaningfully better toughness and improved sharpening behavior — the combination that made it the default choice for production knife makers for over a decade.

    Typical composition: 1.4% carbon, 14% chromium, 3% vanadium, 2% molybdenum, 0.5% niobium. Run at 59–61 HRC in most production knives.

    How does CPM-S35VN compare to CPM-S30V?＋

    CPM-S35VN is a direct upgrade to CPM-S30V across every practical metric. The niobium addition produces smaller carbides that improve toughness — CPM-S35VN resists chipping and micro-fracture better than CPM-S30V at the same hardness, especially at acute edge angles. It is also easier to sharpen: the finer carbide structure refines more cleanly on whetstones and ceramic rods. Edge retention is comparable between the two, with CPM-S35VN holding a slight advantage in real-world testing due to the more uniform edge geometry it supports.

    There is no meaningful reason to choose CPM-S30V over CPM-S35VN in a new knife. When you see CPM-S30V in a current production model, it is typically a cost or legacy choice by the manufacturer.

    How does CPM-S35VN compare to CPM MagnaCut?＋

    CPM MagnaCut is the more advanced steel by every measurable standard — better edge retention, significantly better toughness, and better corrosion resistance than CPM-S35VN. CPM MagnaCut achieves this by eliminating chromium carbides entirely, which frees up chromium for corrosion resistance and allows for higher hardness without the brittleness penalty. CPM MagnaCut at 64 HRC is tougher than CPM-S35VN at 60 HRC.

    CPM-S35VN is still a very capable blade steel and is not obsolete — it runs in hundreds of excellent production knives, is widely available, and is easier to sharpen than CPM MagnaCut. For buyers who sharpen infrequently or use basic sharpening tools, CPM-S35VN remains a practical choice. For buyers who want the best available stainless steel in a production knife, CPM MagnaCut is the upgrade.

    How does CPM-S35VN compare to M390?＋

    M390 has significantly higher edge retention than CPM-S35VN — laboratory wear testing puts M390 well ahead. CPM-S35VN hits back on toughness and sharpenability: it is notably tougher than M390 at comparable hardness levels and considerably easier to maintain at the bench. CPM-S35VN sharpens on standard diamond stones and ceramic rods; M390 demands quality diamond or CBN abrasives and more time.

    For hard-use, outdoor, or high-impact tasks, CPM-S35VN is the better choice. For precision EDC cutting where maximizing edge life is the priority and the owner sharpens with quality tools, M390 has the advantage.

    Is CPM-S35VN easy to sharpen?＋

    Yes — CPM-S35VN is one of the more sharpener-friendly high-performance stainless steels. Its niobium-refined carbide structure responds well to diamond stones, ceramic rods, and even quality aluminum oxide stones at lower grits. Most sharpeners find it significantly easier to work than M390, 20CV, or Elmax. A medium diamond stone followed by a fine ceramic rod produces a keen working edge in a reasonable amount of time.

    For field maintenance, a Spyderco Sharpmaker or ceramic rod handles CPM-S35VN well. For home sharpening, a two-sided diamond stone is all you need. It is approachable for intermediate sharpeners and fast for experienced ones.

    Does CPM-S35VN rust or stain easily?＋

    CPM-S35VN has high corrosion resistance — better than most mid-grade stainless steels and comparable to M390 in real-world carry conditions. Its 14% chromium content, combined with a relatively clean carbide structure compared to steels like D2, keeps free chromium available in the matrix for rust protection. In everyday carry through sweat, humidity, and typical kitchen use, CPM-S35VN will not stain or pit.

    Extended saltwater exposure is the one environment where any stainless steel benefits from a quick wipe and light oil. Under normal carry conditions CPM-S35VN needs minimal maintenance to stay clean.

    What brands use CPM-S35VN steel?＋

    Benchmade, Spyderco, CRKT, Zero Tolerance, and Chris Reeve Knives are among the most prominent brands that have built flagship models around CPM-S35VN. Knifeworks carries authorized stock from Benchmade, Spyderco, and CRKT with full manufacturer warranty coverage.

    BrandNotable CPM-S35VN ModelsWarranty
    BenchmadeGriptilian, Mini Griptilian, 940LifeSharp — free lifetime sharpening & repair
    SpydercoPara 3, Paramilitary 2, Manix 2Manufacturer limited warranty
    CRKTPilar, Drifter, CrossbonesCRKT lifetime warranty against defects
    Which CPM-S35VN knife should I buy at Knifeworks?＋

    For everyday carry in CPM-S35VN, the Benchmade Griptilian is the most proven choice — AXIS Lock, ambidextrous deployment, multiple blade shapes, and LifeSharp warranty coverage from an authorized dealer. The Spyderco Paramilitary 2 in CPM-S35VN is the other benchmark: Compression Lock strength, a 3.44-inch blade, and one of the best out-of-box edges in production folders.

    If you are deciding between CPM-S35VN and CPM MagnaCut, the honest answer is that CPM MagnaCut is the better steel — but CPM-S35VN runs in more models, at lower price points, and is easier to sharpen at home. Call 888-225-9775 and our team can help you match the steel to your actual use case.

    CPM-S35VN vs. comparable blade steels

    SteelToughnessEdge RetentionCorrosion ResistanceSharpenability
    CPM-S35VN ★HighModerateHighEasy
    CPM MagnaCutExceptionalHighExcellentModerate
    M390ModerateExcellentVery goodDifficult
    CPM-S30VMod–HighModerateHighModerate
    154CMMod–HighModerateAbove avgVery easy
    D2ModerateHighLowModerate
    VG-10ModerateModerateHighEasy
    Where CPM-S35VN wins: the toughness and sharpenability combinationNo other steel in this table matches CPM-S35VN's combination of high toughness and easy sharpening. M390 has better edge retention but is harder to maintain. CPM MagnaCut beats it across the board but costs more and requires better abrasives. For buyers who want strong everyday performance without specialized sharpening equipment, CPM-S35VN hits the sweet spot.
    ⚔
    Benchmade, Spyderco & CRKTAuthorized CPM-S35VN catalog across AXIS Lock folders, Compression Lock workhorses, and everyday carry fixed blades.
    Authorized Dealer — Full Warranty CoverageBenchmade LifeSharp: free lifetime sharpening and mechanical repair. Spyderco and CRKT manufacturer warranties on every knife.
    CPM-S35VN vs. CPM MagnaCutDeciding between the two? Call 888-225-9775 — our team can tell you which steel makes more sense for your actual use case.
    Same or Next Business Day ShippingShips from Columbia, Louisiana. Order by 2 PM CT and your CPM-S35VN knife is on its way today.