Grade

Composition

Grain Size

(um)

Density

(g/cm3)

Hardness

ISO3738

(HRA)

TRS

(N/mm2)

Application

WC(%)

CO(%)

JGK12

90

10

0.6

14.5

91.8

3800

0.6um grain size for the fine-grain cemented carbide,use it to makde overall carbide tools,it is the most common grade in Type K grade ,which is mainly use to process steel ,cast iron,stainless steel,heat resistant steel,nickel based and titanium alloy and other materials .It is usually made into twist drill,end mill,tap,generic tools etc

JGK14

88

12

0.5

14.1

92.5

3800

Suitable for the hole processing and thread processing ,but especially suitable for machining titanium alloys,heat-resistant alloys,gray cast iron,stainless steel,hardened steel(Hardness<HRC60) ,steel glass etc.

JGK16

94

6

0.5

14.8

94.3

3800

Ultrafine tungsten carbide powder sintered into a grain size of cemented carbide at 0.5um applying to glass fiber,wood ,plastic,aluminum-magnesium alloy and other materials processing .Recommended for production of cemented carbide tools,micro drilling and micro milling.

JGK6X

94

6

0.8

14.9

91

3400

Suitable for chilled cast iron,ball milling of cast iron,gray cast iron,heat-resistant alloy steel,cutting of small and medium sized cross section of high speed finishing,are processed reamer,aluminum alloy,red brass,bronze,plastic etc

JGK50

85

15

1.2

14.0

87.6

3100

Suitable for the overall producing of stamping dies and tools such as red needles,punch,dies and other accessaries .