CW6Mo5Cr4V2 T66542 - GB /T 9943-2008

Grade	CW6Mo5Cr4V2
China ISC	T66542
Corresponding Standard	GB /T 9943-2008 High-speed tool steels
Classification	Tool Steel

CW6Mo5Cr4V2 Chemical Element Composition Content (%)

Component	C	Si ^①	Mn	P	S ^②	Cr	Ni ^③	Cu ^③	Mo	W	V
Minimum Value	0.86	0.2	0.15	-	-	3.8	-	-	4.7	5.9	1.75
Maximum Value	0.94	0.45	0.4	0.03	0.03	4.5	0.3	0.25	5.2	6.7	2.1

① The lower limit of silicon content in electro-slag steel is not specified.
② Upon the request of the buyer, to improve the machinability of the steel, the sulfur content may be specified as 0.06% to 0.15%.
③ Cu and Ni are residual contents.

CW6Mo5Cr4V2 Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Delivery condition	Annealing	≤255
sample	Quenching and Tempering	HRC ≥64

Notes:
① When the tempering temperature is 550 to 570°C, temper twice, each time for 1 hour; when the tempering temperature is 540 to 560°C, temper twice, each time for 2 hours; when the tempering temperature is 530 to 550°C, temper three times, each time for 2 hours.
② For annealed and cold-drawn condition, the hardness may be allowed to increase by 50 HBW over the annealed condition.

1 Approximate Comparison Table High-Speed Steel 1

China	United States
GB	ASTM
CW6Mo5Cr4V2	M2(高含碳量)

2 Approximate Comparison Table High-Speed Steel 2

China		United States		Germany		France
GB	ISC	ASTM	UNS	DIN EN/DIN	W-Nr.	NF EN/NF
CW6Mo5Cr4V2	T66542	M2(高C)	T11302	SC 6-5-2	1.3342	HS 6-5-2C

3 Approximate Comparison Table High-Speed Steel 3

China		Japan	United States		International Organization for Standardization	European Standard	Russia
GB	ISC	JIS	ASTM	UNS	ISO	EN	GOST
CW6Mo5Cr4V2	T66542	SKH51	M2	T11302	HS 6-5-2C	HS 6-5-2C	Р6М5Ф3

CW6Mo5Cr4V2 Corresponding Standards(Same grade name, different standards)

1	GB /T 9943-2008
	CW6Mo5Cr4V2 T66542
2	GB 9943-1988
	CW6Mo5Cr4V2

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!