What kind of steel are transmission disks?

[Return of the J.D.]

Anyone know what kind of steel is used in Caterpillar heavy machinery transmission disks? Any good for recycling into a blade? Any idea what kind of quenching, if so?

 

[deker]

I don't know about the disks in cat transmissions, but regular automotive flywheels are generally cast iron.

-d

 

[J.Marsillo]

JD According to this chart they are 1070 which would make a good blade,standard "mystery steel" rules apply.
Have fun with it,try hardening a peice before you make a knife to save some anguish.

 

[Return of the J.D.]

JD According to this chart they are 1070 which would make a good blade,standard "mystery steel" rules apply.
Have fun with it,try hardening a peice before you make a knife to save some anguish.

Many thanks! 1070's pretty low-carbon for a knife, though, no?

 

[Jeff Clark]

1070 would be a good chopping knife steel. You might make a big bowie or a short sword using it.

 

[JTknives]

1095 is the steel for mill files and 1040 or 1045 is used in rr spikes and it is not real good but still works ok, thats about as low as you should ever go on blade steel. when you look at a steel the 10 in 1095 means carbon steel and the 95 means 95 points of carbon, the more carbon the harder it will get to a cirtin point. but on big knives you can get to hard and break it. so 1070 should be ok, but try a chunk of it and see what you can get out of it hardness wise.