SW7M/1.3343/HS6-5-2C - Akrostal - minőségi acélok értékesítése

HIGH-SPEED STEEL

NORM: ISO 4957

APPLICATION:

Steel susceptible to machining tools, Tools with high performance and high core ductility, e.g. drill bits, milling cutters, screw dies, inserts for circular saw blades, broaches, relieved cutters, reamers and some cold work tools, e.g. cutting and blanking tools etc.

CHEMICAL COMPOSITION:

C	Si	Mn	P	S	Cr	Mo	W	V	Co	Ni
0,86-0,94	Max 0,45	Max 0,40	Max 0,030	Max 0,030	3,80- 4,50	4,70-5,20	5,90-6,70	1,70-2,10	-	-

MECHANICAL PROPERTIES:

Hardness after	Tempering ºC	Symbol	Value
Soft annealing	–	HB	≤269
Quenching with 1210 ºC in oil	–	HRC	64
Quenching with 1210 ºC in oil and tempering (cooling during quenching can be performed gradually in the salt bath at 550 ºC and then cooled in the air)	560	HRC	64
	350	HRC	61.5
	400	HRC	62
	450	HRC	63
	500	HRC	64
	550	HRC	65
	600	HRC	63
	650	HRC	57
	700	HRC	47

PHYSICAL PROPERTIES:

Property	Unit	Value
Density, ρ	g*cm^-3	8.11

Technological treatment processes:

Technological treatment processes			Possible application	Temperature, °C
Hot forming	Forging		+	1100-900
	Rolling		+	1100-900
Heat treatment	Soft annealing		+	790-840
	Stress relieving		+	600-700
	Quenching	Heating I	+	~550
		Heating II	+	850
		Austenitising	+	1190-1230
	Tempering		+	550-570
Surface treatment	Nitriding		+	510-530
	Coat application		+	PVD

INTERNATIONAL STEEL GRADES:

ISO		EN		Russia
HS6-5-2C	ISO 4957:2004	HS6-5-2C	ISO 4957:2004	~R6M5	GOST 19265-73
US		Japan		China
~M2	ASTM A 600-92	~SKH 51	JIS G 4403-1983	~W6Mo5Cr4V2	GB 9943-88