Asked by: Fabiola Hintzelmann
hobbies and interests woodworking

What kind of metal are lawn mower blades made from?

Last Updated: 1st October, 2021

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Lawn mower blades are low carbon high alloy steel that has high impact resistance and toughness. Hardness is a bad thing in a mower blade, so they don't make the steel hardenable to more than the mid 40's.

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Also question is, what material are lawn mower blades made of?

carbon steel

Secondly, what type of steel are concrete saw blades made of? Concrete saw blades that are diamond tipped are made of either 4140, or 4130, depending on the diameter. Small diameters are 4140 and larger diameters (anything over 20" are 4130) Quenched in water or "super quench" they make useful large chopping type tools if the edges are left fairly thick.

In this manner, do lawn mower blades make good knives?

You've mostly got the answer by now, but just to put it all together: lawnmower blades are not made of high-carbon steel, but medium-carbon steel at best. So from a lawnmower blade you can make a knife that will act like a lawnmower blade- it will bend instead of breaking and smoosh instead of chipping.

What Scrap metal is good for knife making?

  • Tool steels are a very popular choice for making knives.
  • Carbon steel grades with high amounts of carbon are desirable for knife making because they will give the blade the hardness and strength needed to hold up against impact and wear.
  • Stainless steel is another type of knife-making metal.

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Lawn mower blades are low carbon high alloy steel that has high impact resistance and toughness. Hardness is a bad thing in a mower blade, so they don't make the steel hardenable to more than the mid 40's.

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