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#511 01/05/05 02:01 PM
Joined: Apr 1999
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What does the letter "R" stand for in the designation? Example S230R.

#512 01/05/05 02:03 PM
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The letter after the number designates the hardness range.
According to literature from Ervin Amasteel:
S hardness 41-51 HRc
M hardness 47-56 HRc
L hardness 54-61 HRc
H hardness 60 HRc minimum

I am not familiar with the "R" designation.

#513 01/15/05 07:49 AM
Joined: Jul 2004
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Hi Jack

The meaning S230(R)means that it should be regular shot hardness 45-52 HRC,all the way through my shot peening career I have used this term.


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