Material
Table D - Edge strength of steels commonly used in manufacturing machine knives
For some operations, it is necessary to sacrifice abrasion resistance for edge strength. For example, D-2 knives would last many times longer than A-8 for brush chipping except that often stones or nails are thrown in the chute with the tree branches. A-8 can withstand much more of this abuse, while D-2 would tend to break. Other steels used where strength is needed are L-6, S-1 and S-5, which have silicon or nickel added to increase toughness. Another alternative is to reduce the hardness which will increase toughness. This chart compares the shock resistance of various steels.
Table E - Edge Strength at Elevated Temperatures
This chart compares the edge strength of various steels at elevated temperatures. Available but not shown on the chart are materials with a high nickel or nickel-cobalt content used to cut hot slabs of steel in large cross sections.
Home, About Us, Knife Applications, Making a Good Knife, Materials/Specs, Resharpening, Laser Engraving, Links, Contact Us |
©Copyright 2000 Florida Knife Company. All rights reserved. |