ISO?Code

Grade

?

Typical?Property?Value

?

?

Performance?and?recommended?applications

Density??hardness??Bending?Strength

(g/cm3) ? ? ? HRA ? ? ? ? ?(N/mm2)

P05

YT30

9.5 ? ? ? ? ? ? ??93.2 ? ? ? ? ? ??1200 ? ? ? ? ? ?

High?wear?resistance?but?lower?strength?and?impact?toughness. Finishing?of?carbon?steel?and?alloy?steel.for?instance?fine?turning,fine?boring?and?fine?reaming?of?their?small?chip?sections.

P10

YT15

11.3 ? ? ? ? ? ? 92.5 ? ? ? ? ? ? 1550

Wear?resistance?higher?than?YT5, but?impact?toughness?lower?than?YT5. Semifinishing?of?the?medium?chip?sections?of?steel,cast?steel?and?alloy?steel?or?finishing?of?small?chip?sections.

P20

YT14

11.4 ? ? ? ? ? ? 91.8 ? ? ? ? ? ? 1650

High?strength?and?good?impact?&shock?resistance.Rough?turning?and?rough?milling?of?carbon?steel?and?alloy?steel?during?continuous?cutting?or?medium?to?fine?turing?during?intermittent?cutting.

P30

YT5

12.9 ? ? ? ? ? ? 90.4 ? ? ? ? ? ? 2000

Best?strength?and?high?impact?&?shock?resistance?amoung?W-Co-Ti?alloys?but?lower?wear?resistance.Rough?turing?rough?planning?and?semi-finish?planning?of?carbon?steel?and?alloy?steel(including?forged?steel?parts,stamped?parts?and?cast?iron?surfaces)?during?inter?mitten?cutting.

P10-P20

YT715

11.3 ? ? ? ? ? ? 92.5?? ? ? ? ? ??1500 ? ? ?

High?red?hardness?and?wear?resistance.Semi-finishing?and?finishing?of?alloy?steel?withhigh?strength.

P10-P20

/M20

YT758

13.3 ? ? ? ? ? ? 92.4? ? ? ? ? ? ?2100 ?

Good?hardness?under?high?temperature?and?good?wear?resistance.Continuous?or?intermittent?cutting?of?alloy?steel?with?super?strength.

P20-P25

/M20

YT798

12.3 ? ? ? ? ? ? 92.2 ?? ? ? ? ???1900 ?

Good?toughness?and?high?resistance?to?themal?shock?and?plastic?deformation.Milling?of?structure?alloy?steel,tool?alloy?steel,manganese?steel?and?stainless?steel.

P25-P35

YT535

?12.7 ? ? ? ? ? ?90.0 ? ? ? ? ? ??2100?

Wear?resistance,red?hardness?better?than?YT540?and?higher?strength,Continuous?rough?turning?and?milling?ofcast?orforged?steel.

P10-P15

ZP10

?11.2 ? ? ? ? ? ?92.0 ? ? ? ? ? ? 2100 ??

Higher?wear?resistance,strength?and?red?hardness,semifinishing?and?finishing?of?stel,cast?steel,forgeable?cast?iron?and?continuous?nodular?cast?iron.Also?suitable?for?profiling,threading?and?milling.

P15-P20

ZP20

11.5 ? ? ? ? ? ? 91.8 ? ? ? ? ? ? 1650 ?

Higher?impact?resistance?and?strength,Roughing?and?semifinishing?of?steel.cast?steel,forgeable?cast?iron?and?nodular?cast?iron.

P20-P30

ZP25

?12.6??? ? ? ? ? 91.0 ? ? ? ? ? ??1850 ??

Good?toughness.Rough?turning,milling,planning?and?depth?hole?drilling?of?carbon?steel.cast?steel,manganese?steel?and?alloy?steel.

P30-P40

ZP35

?12.7 ? ? ? ? ? ?91.0?? ? ? ? ? ??2220 ? ?

A?versatile?grade,high?red?hardness,strength?and?resistance?to?impact?and?themal?shocking.Roughing?and?strong?cutting?of?steel?and?cast?steel.

M10-M20

ZP30.2

?13.1 ? ? ? ???? 92.8 ? ? ? ? ? ??1800 ?

High?wear?resistance?and?high?resistance?to?plastic?deformation.Continuous?or?intermittent?cutting?of?manganese?steel?and?stainless?steel.

M10

YW1

13.4 ? ? ? ? ? ? 92.8 ? ? ? ? ? ? 1700

High?red?hardness,resistant?to?impact?load.A?versatile?grade.Machining?of?common?steel,cast?irons?and?hard?to?machine?materials?such?as?refractory?steel,manganese?steel?and?stainless?steel.

M15

YW2A

13.0 ? ? ? ? ? ? 92.0 ? ? ? ? ? ? 1950

High?red?hardness?and?high?strength,resisting?high?impact?load.A?versatile?grade?rough.Maachining?and?semi-fingshing?of?cast?irons?and?hard?to?machine?materials?such?as?refractory?steel,manganese?steel,stainless?steel?and?advanced?alloy?steel.

M20

YW2

13.3 ? ? ? ? ? ? 92.0 ? ? ? ? ? ? 1800

High?wear?resistance,strength?comparatively?higher?and?resistant?to?high?impact?load.Roughing?and?semi-finishing?of?common?steel,cast?irons?as?well?as?refractory?steel,manganese?steel,stainless?steel?and?advanced?alloy?steel.

K01

YG3X

15.2 ? ? ? ? ? ? 93.6 ? ? ? ? ? ? 1450

Best?wear?resistance?among?W-Co?alloy?yet?impact?toughness?comparatively?low.Hifh?speed?finishing?of?small?chip?section?of?cast?irons,non-ferrous?metals?&their?alloys,hardened-steel?and?alloy?steel.

K10

YG6X

14.9 ? ? ? ? ? ? 92.5 ? ? ? ? ? ? 2100

High?wear?resistance?and?higher,strength,machining?of?chilled?alloy?cast?irons?and?refractory?alloy?steel?or?finishing?of?common?cast?irons.

K10

YG6A

14.9 ? ? ? ? ? ? 93.0 ? ? ? ? ? ? 1850

Good?wear?resistance.Semi-finishing?of?chilled?cast?iron,nonferrous?metals?&?their?alloys;Semi-finishing?and?finishing?of?hardened?steel,alloy?steel.

K15-20

ZK20

(YG6)

15.0 ? ? ? ? ? ? 91.1 ? ? ? ? ? ? 2100

High?wear?resistance?and?better,impact?and?shock?resistance?higher?than?YG3X.Semi-finishing?and?finishing?of?cast?irons,non-ferrous?metals?&?their?alloys?and?nonmetallic?materials?at?medium?cutting?speed.

K30

ZK30

(YG8)

14.7 ? ? ? ? ? ? ?90.0 ? ? ? ? ? ?2100

High?strength?and?good,impact?and?shock?resistance,but?wear?resistance?and?cutting?speed?comparatively?lower.Roughing?of?cast?irons,non-ferrous?metals&?their?alloys?as?well?as?nonmetallic?materials?at?low?cutting?speed.

K20-K40

ZK30UF

14.4 ? ? ? ? ? ? ?91.7 ? ? ? ? ? ?2800

Superior?toughness?and?high?hardness.Finishing?and??rigid?milling?of?cast?irons?and?non-ferrous?metals,ideal?for?hole-machining?tools.