Construction Techniques-L6
Composition: 0.75 % carbon, 0.7% manganese, 0.8% chromium, 0.25% silicon 0.30% molybdenum 1.5% nickel Heat treating characteristics: critical temperature =1525 F 64 Rockwell C as quenched. Advantages: good wear resistance, bright color under etching (due to the nickel) good flexibility and toughness Source: scavenged from industrial wood cutting band saw blades. Not all blades are L6 so it is critical to verify the composition. In my case, I inadvertently purchased a 24' x 6" wide blade when the local sawer sliced through one of my a live oak logs to discover an 80-year old logging chain deep in the tree. He had the receipt and it listed the composition as L6. With the aid of a friend and his plasma cutter, I now have a life-time supply of 2" x 4" x 0.030" pieces of L6. |