Diamond Saw blades Core material?

Bladegunner

Bladegunner

Joined
Jul 28, 2016
Messages
595
As I work for a concrete cutting company I have access to the worn out diamond blades. I would like to try and make a knife from this material. They do rust so I would assume high carbon steel and I would think it is fairly hard steel to stand up to the constant friction. Anybody have a general idea what the steel would be used in these blanks? Would these need a HT? Anybody used this material for a fixed blade?
 
What thickness? I think they used to use L6 for wood saw blades. Not sure if they'd use L6 with diamonds for concrete, but wouldn't doubt it. If you have a small piece, you can send me it and I'll Rockwell test it at work.
 
shinyedges said:
What thickness? I think they used to use L6 for wood saw blades. Not sure if they'd use L6 with diamonds for concrete, but wouldn't doubt it. If you have a small piece, you can send me it and I'll Rockwell test it at work.
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I would guess its around .187 thickness as the diamond segments are .250 as they are wider than the blank. I will get one cut down how big of a piece do you need to test ?
 
Bladegunner said:
I would guess its around .187 thickness as the diamond segments are .250 as they are wider than the blank. I will get one cut down how big of a piece do you need to test ?
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A 1x1 piece is fine, or a little bigger I can test different spots and see if the hardness is uniform. Shoot me a pm and I'll give you my address.
 
I belive bloodroot blades use tile cuttings saws (I assume almost same as concrete cutting ones) on quite a few of thier knives.
 
Bladegunner said:
As I work for a concrete cutting company I have access to the worn out diamond blades. I would like to try and make a knife from this material. They do rust so I would assume high carbon steel and I would think it is fairly hard steel to stand up to the constant friction. Anybody have a general idea what the steel would be used in these blanks? Would these need a HT? Anybody used this material for a fixed blade?
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I work for a granite company and I also have access to all kind of diamond blades.. I'm not sure about the ones that go on the grinder that are about six inches but the big blades that go on like a bridge saw won't work.. they have a layer in the middle I tried making a throwing knife out of one and it basically opened up after a few throws
 
Bladegunner said:
As I work for a concrete cutting company I have access to the worn out diamond blades. I would like to try and make a knife from this material. They do rust so I would assume high carbon steel and I would think it is fairly hard steel to stand up to the constant friction. Anybody have a general idea what the steel would be used in these blanks? Would these need a HT? Anybody used this material for a fixed blade?
Click to expand...
Find the manufacturer and contact them. It's a legit question for them, since they make them they would know without a doubt.
 
Good info, I will contact a salesman I know as we don't deal with factory's direct as most are made in S. Korea or at least the Diamond segments are. Yes they are like for a bridge saw at least in size our common sizes range from 14" to 36"
 
Part of my job is straightening bent blades. The bodies of concrete blades feel different under the hammer than the bodies of wood industry blades, the latter being harder/requiring more force to move metal and retension. It would be interesting to know the steel they use for each. I know the wood blades cannot be drilled with a steel bit, so it's hard stuff. I'm not sure whether the concrete blades could be drilled with a steel bit. Interesting thread.
 
The 14" Core cut blades we use (hardscaping, on our iQ saw and gas partner saws) are softer [cheap] steel in the center with only the "teeth" being good steel.
 
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