| Grade |
Typical
property values |
Performance
& Applications |
Equivalent
to ISO |
Density
g/cm3 |
Bending
Strength
N/mm2 |
Hardness
HRA |
| YT30 |
9.5 |
1140 |
92.5 |
Wear resistance and
cutting speed higher than YT15 but strength and impact toughness
comparatively lower. Finishing of carbon steel and alloy steel,
for
instance fine turning, fine boring or fine reaming of their small
chip sections |
P05 |
| YT15 |
11.3 |
1650 |
92.0 |
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 their small chip sections. |
P10 |
| YT14 |
11.4 |
1750 |
91.5 |
High strength in use and
good impact & shock resistance, yet lower than YT5,Rough
turning and rough milling of carbon steel and alloy steel during
continuous cutting or medium to fine turning of them during intermittent
cutting. |
P20 |
| YT5 |
12.9 |
2200 |
90.5 |
Best strength and height impact & shock resistance among W-Co-Ti alloys but wear
resistance comparatively lower. Rough turning, rough planning and
half precision planning of carbon steel and alloy steel (including
forged steel parts, stamped parts and cast iron surfaces). |
P30 |
| YW1 |
13.0 |
1710 |
92.5 |
High red hardness, resistant to
impact load. A goo grade for general purposes Machining of ordinary
steel, cast irons and hard to machining materials such as
refractory steel manageress steel, and stainless steel.
|
M10 |
| YW2A |
12.9 |
1910 |
91.5 |
High red hardness and high strength in
use, resisting high impact load, A good grade for general purposes,
Machining and medium machine of cast irons and problem materials
such as refractory steel, manganese steel, stainless steel and
advanced alloy steel.
|
M15 |
| YW2 |
12.9 |
1880 |
91.0 |
Wear resistance second to YW1 yet
strength comparatively higher and resistant to high impact load.
Roughing and medium machining of ordinary steel cst irons as well
as refractory steel, manganese steel, stainless steel and advanced
alloy steel.
|
M20 |
| YG3X |
15.2 |
1600 |
92.5 |
Best wear
resistance among W-Co alloys yet impact toughness comparatively
low, High speed finishing of small chip section of cast irons,
non-ferrous metals & alloys quenched steel and alloy steel. |
K01 |
| YG3 |
15.2 |
1750 |
92.0 |
Wear
resistance less than YG3X only, sensitive to impact and vibration
for continuous semi-finish and finish turning of castiron,
non-ferrous metals and their alloys and for finish turning of
threads and reaming. |
K05 |
| YG6A |
14.9 |
1850 |
92.0 |
Fine-grained
alloy, good; wear resistance. Semi-finishing of chilled cast iron,
non-ferrous metals/alloys; semi-finishing and finishing of hardened steel,
alloy steel. |
K10 |
| YG6X |
14.9 |
1890 |
91.5 |
Fine grain WC
alloy, wear resistance higher than YG6,strength in use close to
YG6,Machining of chilled alloy cast irons and refractory alloy steel or finishing of
ordinary cast irons. |
K10 |
| YG6 |
14.9 |
2050 |
90.5 |
High wear
resistance ,yet lower than YG3 impact and shock resistance higher than YG3X
Semi-finishing and finishing of cast irons ,nonferrous
metals & alloys and non metallic materials at medium cutting
speed. |
K15~K20 |
| YG8 |
14.7 |
2520 |
90.0 |
High strength in
use ,impact and shock resistance higher than YG6,but wear resistance
and cutting speed comparatively lower. Roughing of
cast irons non ferrous metals and their alloys as well as
nonmetallic materials at low cutting speed |
K30 |
