1.5920 18h2n2 Ecn20 18crni8 Tool Steel Block Plate Flat Round Bar

• Type: Alloy Steel Bar
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Ferrous Steel Scrap
• Technique: Forged
• Shape: Bar
• Surface Treatment: Machined
• Model NO.: Round bar
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel, Die Material
• Application: Tool Steel Bar
• Length: 2500-5500mm
• Transport Package: N/M
• Specification: 6-400mm
• Trademark: Smooth
• Origin: China
• HS Code: 7228400000
• Production Capacity: 5000ton/Month

Product Description

TECHNOLOGICAL INFORMATION:

Steel adjusted for cutting with a cutting machine. The carburising temperature range can be higher than provided in the file (depending on the carburising process)

SEMI-FINISHED PRODUCTS:

Steel adjusted for cutting with a cutting machine. The carburising temperature range can be higher than provided in the file (depending on the carburising process)

CHEMICAL COMPOSITION:

C	Si	Mn	P	S	Cr	Mo	Ni	B
0,15- 0,22	0,17 -0,37	0,4-0,7	Max 0,035	Max 0,035	1,80-2,10	Max 0,10	1,8-2,1	-

MECHANICAL PROPERTIES:

Hardness after	Symbol	Value
Soft annealimg (+A)	HB	≤ 235
Mechanical properties	Symbol	Mechanical properties after heat treatment
Ultimate tensile strength	Rm, MPa	1230 - 1470
Yield stress	Re (Rp0.2) MPa	≥ 830
Elongation	A, %	≥ 7
Reduction of area	Z, %	≥ 30
Impact energy	KV, J	-
Physical properties
Property	Unit	Value
Density, ρ	g·cm^-3	7.85

TECHNOLOGICAL TREATMENT PROCESSES:

Technological treatment processes			Possible application	Temperature, °C
Hot forming	Forging		+	850 - 1100
	Rolling		+	850 - 1100
Thermochemical treatment	Carburising		+	880 - 950
	Carbonitriding		+	860 - 930
Heat treatment	Annealing	Normalising	+	870 - 900
		Soft annealing	+	650 - 700
	Heat treatment after carburising^1)	Core hardening	+	840 - 870
		Intermediate annealing	+	630 - 650
		Case hardening	+	800 - 830
		Tempering	+	170 - 200
^1)If possible, hardening has to be performed with the temperature equal or close to the heat treatment temperature