The compositions of some of the alloy steels are as under: 1. 18 W 4 Ct 1 V 2. 12 Mo I W 4 Cr IV 3. 6 Mo 6 W 4 Cr 1 V 4. 18 W 8 Cr IV The compositions of commonly used high speed steels would in clude:

The compositions of some of the alloy steels are as under: 1. 18 W 4 C

1.	The compositions of some of the alloy steels are as under: 1. 18 W 4 Ct 1 V 2. 12 Mo I W 4 Cr IV 3. 6 Mo 6 W 4 Cr 1 V 4. 18 W 8 Cr IV The compositions of commonly used high speed steels would in clude:
A.	1 and 2
B.	2 and 3
C.	1 and 4
D.	1 and 3
Answer» D. 1 and 3

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The compositions of some of the alloy steels are as under: 1. 18 W 4 Ct 1 V 2. 12 Mo I W 4 Cr IV 3. 6 Mo 6 W 4 Cr 1 V 4. 18 W 8 Cr IV The compositions of commonly used high speed steels would in clude:

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