Chinese Grade

Equal to ISO

Density(g/cm2)

TRS (N/mm2)

hardness(HRA)

Application

YT15

P10

11.1-11.6

≥1180

91.5

For the semi-finishing of and rine finishing of car bon steel, alloy steel.

YT14

P20

11.2-11.8

≥1270

91

For the medium and low rough and stmi-rinishing of carbon steel, alloy steel.

YT5

P30

12.5-13.2

≥1430

89.5

For the medium and low speed rough finishing of carbon steel,alloy steel.

YW1

M10

12.7-13.5

≥1350

91.5

For the medium and low speed semi-finishing of heat-resisting steel, manganese steel, stainless steel.

YW2

M20

12.5-13.5

≥1450

90.5

For the medium and low speed semi-finishing and fine finishing of heat-resisting steel, manganese steel and stainless steel.

YG6X

K10

14.8-15.1

≥1540

91

A fine grain grade with better wear resistance and simles as that YG6 grade .Suitable for cutting of chilled and alloyed cast irons and alloyed refractory steels, also suitable for finishing of normal cast irons.

YG6A

K10

14.7-15.1

≥1450

91.5

A fine grain grade with excellent wear resistance and suitable for semi finishing of chilled cast iron, on-ferrous metals and their alloys, but also suitable for semi finishing or finishing of hardened steel and alloy steels.

YG6

K15-K20

14.7-15.1

≥1600

90

With better wear resistance, and suitable for semi fishing and finishing of cast irons, on-ferrous metals and their alloys, on metallic materials at medium cutting speed.

YG8

K20

14.6-14.9

≥1750

89

With good strength, better impact and shock resistance than that of YG6,but lower wear resistance; suitable for roughing of cast irons, on-ferrous metals and their alloys, as well as non metallic at low cutting speed.

 Nominal dimension (d,l,s)

Tolerance

  ≤6.0

±0.15

  6.0-10.5

±0.15

  10.5-19.5

±0.20

  19.5-25.6

±0.25