Specifications of Grade for Special Type

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Application Class ISO
code		 Grade S.G. Grain size Binder content Hardness HRA TRS
（㎛） （wt%） HRA Hv(GPa) (GPa)
For General Cutting Tools P grade P10 AP409 10.5 2.0 9.0 92.1 16.0 1.9
P20 AP209 11.9 2.0 8.5 91.7 15.8 2.3
P30 AP212 11.6 3.4 11.5 91.0 14.9 2.4
P40 AP112H 13.2 2.0 11.5 90.4 14.3 2.8
M grade M10 AM106 12.9 2.0 5.5 92.4 16.9 2.0
M20 AM108 13.2 2.0 8.0 91.5 15.6 2.4
M40 AM115 13.2 1.4 15.0 89.2 12.9 2.9
K grade K10 AF805 15.1 0.8 5.0 93.2 17.7 2.4
K10 AF906 14.9 0.9 6.0 92.4 17.3 3.4
K10 AK256 14.8 2.5 6.0 90.9 15.4 2.5
K20 AK206 14.9 2.5 6.0 91.3 15.8 3.4
K20 AF810 14.5 0.8 10.0 91.4 15.2 3.3
K40 AF813 14.2 0.8 13.0 90.4 13.6 3.5
cermet P10 AT715 6.7 - 15.0 91.9 15.6 2.2
P30 AT716M 7.1 - 16.5 90.9 14.0 2.1
For Wear & Impact Resistant Tools Wear resistance --- AV106 14.9 1.2 6.0 92.4 16.7 2.1
--- AV207 14.9 2.0 7.0 90.9 15.0 3.0
--- AV210 14.7 2.0 10.0 89.8 13.7 3.2
--- AV212 14.3 2.0 12.0 89.0 13.1 3.3
--- AV215 14.1 2.0 15.0 87.8 11.9 3.3
--- AV320 13.6 3.0 20.0 84.5 9.3 3.0
--- AV325 13.2 3.0 25.0 83.0 8.2 2.9
Impact resistance --- AG408 14.9 3.3 8.0 89.0 12.9 2.8
--- AG410 14.6 4.0 9.5 87.7 11.8 2.8
--- AG411 14.5 4.0 10.5 87.0 11.2 2.8
--- AG416 14.0 4.0 15.5 85.5 10.2 2.7
For Specific Purpose Micro grain --- AF505 14.9 0.5 5.0 93.6 20.1 2.0
--- AF5085 14.5 0.5 8.5 92.7 18.0 2.6
--- AF513 14.1 0.5 13.0 91.4 15.6 3.3
Ultra micro grain --- AF308 14.6 0.3 8.0 93.6 19.4 3.8
--- AF312 14.1 0.3 12.0 92.5 17.3 4.4
--- AF209 14.5 0.2 9.0 93.5 20.4 4.0
High wear resistance --- AF2003 15.5 0.2 0.3 27.5 0.9
--- AF2005 15.5 0.2 0.5 27.0 1.0
--- AF3005 15.4 0.3 0.5 25.3 1.3
--- AF303 15.2 0.3 3.0 94.2 21.0 2.9
For Corrosion Resistant Tools --- AE809C 14.3 0.8 9.5 92.2 16.9 2.5
--- AE2008 14.8 2.0 8.0 90.3 14.2 3.1
For Lenses Forming Mold --- AF3005L 15.4 0.3 0.5 25.3 1.3
--- AF303L 15.2 0.3 3.0 94.2 21.0 2.9
--- AF312L 14.1 0.3 12.0 92.5 17.3 4.4

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Application Class ISO
code		 Grade Fracture Toughness K1c Compressive Strength Impact Strength Young's modules Thermal Conductivity(RT) Thermal Expansion Coefficient
(MPam1/2) (GPa) (x10-4GPa・m) (GPa) (W/(m・K)) (x10-C/K)
For General Cutting Tools P grade P10 AP409 8.1 4.9 470 14 6.2
P20 AP209
P30 AP212 9.1 520
P40 AP112H
M grade M10 AM106 5.9 460
M20 AM108 8.5 55
M40 AM115 11.5
K grade K10 AF805 6.3 6.1 650 109 4.7
K10 AF906 6.5 640 105 4.5
K10 AK256 8.5 5.7 620 105
K20 AK206 620 84 4.5
K20 AF810 9.9
K40 AF813 10.8
cermet P10 AT715 7.0
P30 AT716M 8.5
For Wear & Impact Resistant Tools Wear resistance --- AV106 6.5
--- AV207 8.3 5.5 0.72 640 98 5.7
--- AV210 10.3
--- AV212 12.5 4.8 0.81 580 96 6.3
--- AV215 17.5 4.4 0.77 540 71
--- AV320 18.5 0.73
--- AV325 20.0 3.2 0.89 460 63
Impact resistance --- AG408
--- AG410 4.5 0.47 520 76
--- AG411 4.3 0.62 520 76
--- AG416
For Specific Purpose Micro grain --- AF505 6.7
--- AF5085 7.8 600
--- AF513 8.6 560 42
Ultra micro grain --- AF308 6.0 52
--- AF312 8.3 570 36 5.5
--- AF209 5.5
High wear resistance --- AF2003
--- AF2005 3.5
--- AF3005 4.5 4.2
--- AF303 5.4 56 4.5
For Corrosion Resistant Tools --- AE809C 8.0
--- AE2008 8.5 4.9 0.99 600 85 5.9
For Lenses Forming Mold --- AF3005L 4.5 4.2
--- AF303L 5.4 56 4.5
--- AF312L 8.3 570 36 5.5