Cold Work Tool Steel O2 9g2f 9mnv Nmv 1.2842 90mncrv8 Steel Plate

• Customization: Available
• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Model NO.: Round bar
• Composition: Stainless Steel Scrap
• Technique: Forged
• Shape: Plate
• Surface Treatment: Polished
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Tool Steel Bar
• Transport Package: Wooden
• Specification: 6-400mm
• Trademark: Smooth
• Origin: China
• HS Code: 7214100000
• Production Capacity: 5000 Ton/Year

Product Description

CHEMICAL COMPOSITION(%):

C	Si	Mn	P	S	Cr	Mo	W	V	Co	Ni
0,85-0,95	0,10-0,40	1,80-2,20	Max 0,030	Max 0,030	0,20-0,50	-	-	0,05-0,20	-	-

MECHANICAL PROPERTIES:

Hardness after	Tempering ºC	Symbol	Value
Soft annealing	-	HB	≤229
Quenching with 790 ºC in oil	-	HRC	65
Quenching with 790 ºC in oil and tempering	180	HRC	≥60
	200	HRC	61.5
	250	HRC	59.5
	350	HRC	57
	400	HRC	54
	450	HRC	51
	500	HRC	48
	550	HRC	44

PHYSICAL PROPERTIES:

Property	Unit	Value
Density, ρ	g*cm^-3	7.85
Thermal expansion, α20-100ºC)	K^-1	11.7*10^-6
Thermal conductivity, λ20ºC)	W*m^-1*K^-1	25

TECHNOLOGICAL TREATMENT PROCESSES:

Technological treatment processes			Possible application	Temperature, °C
Hot forming	Forging		+	1000-850
	Rolling		+	1000-850
Treatment	Heat treatment	Quenching	+	780-800
		Tempering	+	170-190
	Precipitation strengthening	Supersaturation	-	-
		Ageing	-	-
	Annealing	Soft annealing	+	680-700
		Stress relieving	+	600-680
Thermochemical treatment	Nitriding		-	-
	Other		-	-

INTERNATIONAL STEEL GRADES:

ISO		CEN		Russia
90MnCrV8	ISO 4957:2004	90MnCrV8	ISO 4957:2004	9G2F	GOST 5950-73
US		Japan		China
O2	ASTM A 681-91	-	-	9MnV	GB 1299-85

APPLICATION:

Steel susceptible to tools and measuring tools which are resistant to abrasion, guide strips, ejector pins, gauges;
cutting, punching, stamping tools; long screw taps, threading dies, screw cutting jaws, broaches, circular cutters
for paper and leather, cutting plates with complex shapes for blanking dies, wood processing mills, reamers,
measures tools etc.