Alloy Steel Flat Plate Round Bar 1.2162/21mncr5 Cold Work Tool Mold/Mould Steel

• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Stainless Steel Scrap
• Technique: Forged
• Shape: Plate
• Surface Treatment: Polished
• Model NO.: Steel Plate
• 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
0,18-0,24	0,15-0,35	1,10-1,40	Max 0,030	Max 0,030	1,00 - 1,30	-	-	-	-	-

MECHANICAL PROPERTIES:

Hardness after	Tempering ºC	Symbol	Value
Soft annealing	-	HB	≤217
Quenching^1) with 820 ºC in water	-	HRC	62
Quenching^1) with 820 ºC in water and tempering ^1) after carburising	180	HRC	≥60
	200	HRC	60
	250	HRC	58.5
	300	HRC	57
	350	HRC	55
	400	HRC	53.5
	450	HRC	52
	500	HRC	50.5

PHYSICAL PROPERTIES:

Property	Unit	Value
Density. ρ	g*cm^-3	7.85
Thermal expansion. α20-100ºC)	K^-1	11.9*10^-6
Thermal conductivity. λ20ºC)	W*m^-1*K^-1	52

TECHNOLOGICAL TREATMENT PROCESSES:

Technological treatment processes			Possible application	Temperature. °C
Hot forming	Forging		+	1100-850
	Rolling		+	1100-850
Treatment	Heat treatment	Quenching	+	810-830
		Tempering	+	170-190
	Precipitation strengthening	Supersaturation	-	-
		Ageing	-	-
	Annealing	Softening	+	660-700
		Stress relieving	+	600-680
Thermochemical treatment	Nitriding		-	880-950
	Other		-	880-920

INTERNATIONAL STEEL GRADES:

ISO		CEN		Russia
21MnCr5	ISO 4957:1999	21MnCr5	EN ISO 4957:1999	-	-
US		Japan		China
-	-	-	-	-	-

APPLICATION:

Steel susceptible to tools with a high surface hardness and tough core, dies and punches for cold metal forming, plastic moulds.