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Birla Precision Technologies Ltd.
(Indian Tool Mfgrs Divn.)
B-15/4,
MIDC Waluj,
Aurangabad - 431 133
Maharashtra, India
Tel.: +91-240-2554300, 2554301, 2554945
Fax: +91-240-2554302
Web:
www.birlaprecision.in
Email:
info@birlaprecision.com

Corporate Office:
The Yash Birla Group
Dalamal House,
1 st Floor, J.B. Marg,
Nariman Point,
Mumbai - 400 021,
Maharashtra, India.
Tel.: +91-22-66168400
Fax: +91-22-22047835
Web:
www.yashbirlagroup.com
Email:
response@yashbirlagroup.com
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Raw Material Composition

Depending on the application, cutting tools are manufactured using different grades of HSS.

The work material, its hardness, the machine tool used, part configuration, finish required on the
Components and volume of components to be produced are the few requirements that influence
Selection of different grades of HSS for manufacture of cutting tools

Chemical composition of some grades of High-Speed Steels normally used is given below :

HSS
GRADES
CHEMICAL COMPOSITION
 
C
Cr
Mo
W
V
Co
M2
0.86/0.96
3.8/4.5
4.9/5.5
6.0/6.75
1.7/2.2
Nil
M35
0.88/0.96
3.8/4.5
4.9/5.5
6.0/6.75
1.7/2.2
4.5/5.2
M42
1.05/1.15
3.5/4.5
9.0/10.0
1.3/2.0
1.0/1.03
7.75/8.2
T42
1.25/1.35
3.5/4.5
3.2/4.0
9.5/10.7
2.8/3.5
9.7/10.2

C   - Carbon Cr - Chromium Mo - Molybdenum
W  - Tungsten Co - Cobalt V   - Vanadium