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OLFA 18mm Snap-Off Replacement Blades 10pc-Pack
by  Olfa, Hand tools - Be the first to rate this product 
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PRODUCT INFORMATION

  •  

    Specifications

    Brand
    Olfa
    Hand tools Type
    Cutters
    Item EAN
    2724290333218
  •  

    Description:

    The OLFA Snap-Off Replacement Blades for OLFA Utility Knives (10-Pack) provide you with multi-cutting surfaces in each blade. These blades are made of high-quality stainless steel, making them ideal for working in moist environments. Long lasting and durable - a new sharp edge with just a snap, no

    The OLFA Snap-Off Replacement Blades for OLFA Utility Knives (10-Pack) provide you with multi-cutting surfaces in each blade. These blades are made of high-quality stainless steel, making them ideal for working in moist environments. Long lasting and durable - a new sharp edge with just a snap, no need to sharpen.

     

    models:LB-10 for 18mm LB knife.


    Q&A 


    Q: Is stainless steel magnetic? Does it depend on the amount of chromium, or nickel alloy? 


    A: Stainless steels are a very broad group of metals. The name was adopted as a generic term for steel alloys with a minimum of 10.5% chromium. The chromium gives the steel its 'stainless' properties - essentially corrosion resistance. On the surface of the metal, a very thin chromium-rich oxide layer is formed which is inert - i.e. it prevents the steel from rusting. The advantage of stainless steels over plated steels is that, if scratched or damaged, the steel will 'self-repair' as a new oxide layer is formed. In plated steels, scratches in the plate will often lead to corrosion of the steel underneath. 

    In general, the higher the proportion of chromium, the stronger the corrosion resistance of the steel. In addition to chromium, other metals are added to give the steel particular properties such as strength and malleability. Specifically nickel is used to strengthen the oxide layer. 

    As for whether they are magnetic, the answer is that it depends. There are several families of stainless steels with different physical properties. A basic stainless steel has a 'ferritic' structure and is magnetic. These are formed from the addition of chromium and can be hardened through the addition of carbon (making them 'martensitic') and are often used in cutlery. However, the most common stainless steels are 'austenitic' - these have a higher chromium content and nickel is also added. It is the nickel which modifies the physical structure of the steel and makes it non-magnetic. 

    So the answer is yes, the magnetic properties of stainless steel are very dependent on the elements added into the alloy, and specifically the addition of nickel can change the structure from magnetic to non-magnetic. 

 

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