Welcome to Zhenjiang Scharp Machinery Tools., Co.,Ltd.

Zhenjiang Scharp Machinery Tools., Co.,Ltd.

Material Specifications & Inspection Procedures

 

Cutting tools performance mainly depends on raw material composition, heat-treat process and precision tolerance. Among them material is the most important factor.Different countries developed their own steel codes

Following is a data sheet that show major steel codes.

 

 

 

China

USA

Japan

Germany

ISO

character

HB

Temper temperature

Usage

GB

ASTM

JIS

DIN

Carbon Steel

T7

W1-7

SK7

C70W2

TC70

regular tensile and hardness

87

800-820

chisel, hack saw,

T8

W1-71/2

SK6

C80W1

TC80

good harness and abrasive

87

780-800

route bits, axle, hack saw

T8Mn

W1-8

SK5

C85W

1

good harness and abrasive

87

780-800

hack saw, pouch

T9

W1-81/2

SK5

1

TC90

good harness and abrasive

92

760-780

wood working cutting tools

T10

W1-91/2

SK4

1

TC105

high hardness and abrasive

97

760-780

wood working cutting tools

T11

W1-101/2

SK3

C105W2

1

high hardness and abrasive

07

760-780

hand use taps and die, scrapers, files

T12

W1-111/2

SK2

1

TC120

high hardness and abrasive

07

760-780

hand use taps and die

T13

W1-121/2

SK1

1

TC140

high hardness and abrasive

17

760-780

scrapers, files, gauge and so on

high speed steel

W18Cr4V

T1

SKH2

1

1

high hardness and red hardness

55

1270-1285

tool bits milling cutters
drill bits reamer

W6Mo5Cr4V2

M2

SKH51

1

1

high hardness and red hardness

55

1210-1230

tool bits milling cutters
drill bits reamer

W9Mo3Cr4V

1

1

1

1

high hardness and red hardness

55

1220-1240

tool bits milling cutters lathe drill bits reamer

W6Mo5Cr4V2Al

1

1

1

1

super hardness,

its red hardness is better than W6Mo5Cr4V2

69

1230-1240

tool bits, milling cutters
drill bits reamer hob and so on

W2Mo9Cr4V2

M7

1

1

1

super red hardness

1

1

tool bits, milling cutters
drill bits reamer hob and so on

W6Mo5Cr4V2Co5

M35

1

1

1

best red hardness

1

1

tool bits, milling cutters
drill bitsreamer hob and so on

W2Mo9Cr4VCo8

M42

1

1

1

best red hardness

1

1

tool bits, milling cutters
drill bits reamer hob and so on

 
 

 


Cutting tools performance mainly depends on raw material composition, heat-treat process and precision tolerance. Among them material is the most important factor.Different countries developed their own steel codes

Following is a data sheet that show major steel codes.


Quality is our factory's life. We based our quality control on standard ISO9001 system. With fully inspection equipments and professional workers, we control the quality from raw material to finished products. We conduct cutting test for each dispatch before shipment.

Customer comments are our valuable sources of quality information. Every complaint will be processed at once. Also we give customer complete compensation if losses arise from our producs' quality.

Follows are our regular quality control diagram.

raw material quality control

physical -chemical analysis

chemical test 
   ( content of each element)

physical test 

(low multiple, high multiple)

production process

quality control during production process

operator self check

checker first check

checker tour check

checker final confirm

finished product

spot check by checker

static confirm

cutting test

tool life test

packing

packing check

put into warehouse for shipment

 

 


 

WeChat

National Service Hotline:

0086-511-88798218

E-mail : frankpan@scharptools.com

Address:168--27#,No.168 Dingmaoqiao Road,Zhenjiang,Jiangsu 212002 China

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