AMOBEADS is made of amorphous alloy best suited for shot peening featuring the
combination of long service life and extra-high hardness.

【AMOBEADS】
* The long service life of AMOBEADS contributes
greatly to the reduction of running cost of
peening operations and reduction of waste
material generation.
* AMOBEADS is, due to its high hardness, capable
to give a higher residual compressive stress to
the surface of work.
* This media is quite suitable for precision finish
because it achieves comparatively smooth
surface finish.
Hardness HV900～950
Specific Gravity 7.4
Service life is 10 times longer than steel shot and
8 times longer than high speed steel media.
AMOBEADS HIGH SPEED
STEEL		 STEEL
SHOT
Life Comparison 820 100 80
※Life ratio is based on high speed steel media as 100.
Possible to obtain a smooth surface finish while giving a
high residual compressive stress.
AMOBEADS HIGH SPEED STEEL
Before shot projection（Rz） 0.6 0.6
After shot projection（Rz） 1.0 1.0
Treatment condition (1)Size of each blasting media (shot) ：80μm
(2)Projection speed：60ｍ/sec

mm AM-200 AM-150 AM-100 AM-50
0.300 All Pass - - -
0.250 5% Max All Pass - -
0.212 - 5% Max All Pass -
0.180 - - 5% Max -
0.150 - - - -
0.125 95% Min - - -
0.106 - 90% Min - -
0.090 - - - All Pass
0.075 - - 90% Min 10% Max
0.053 - - - -
0.045 - - - -
0.038 - - - 90% Min


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