Hot Cold Rolled Spring Steel 1.1231 C67 Strip Plate Round Bar

• Customization: Available
• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Model NO.: Plate
• 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

About Product:

CHEMICAL COMPOSITION:

C	Mn	Si	P	S	Cr	Ni	Mo	V	W	Ti	Cu	Inne
0,65-0,73	0,6-0,9	0,15- 0,35	MAX 0,025	MAX 0,025	MAX 0,4	MAX 0,4	MAX 0,1	-	-	-	-	-

MECHANICAL PROPERTIES:

Mechanical steel properties after annealing or annealing and finished rolling for the product with thickness of 0.3 mm ≤ t < 3 mm
Property			Symbol		Unit		After heat treatment
Ultimate tensile strength			Rm		MPa		≤ 510
Yield stress			Re (Rp0.2)		MPa		≥ 640
Elongation			A		%		≥ 16
Reduction of area			Z		%		-
Hardness			HV		HV		≤ 200
Mechanical steel properties after cold rolling for the products with thickness of 0.3 mm ≤ t < 3 mm
Property			Symbol		Unit		Value
Ultimate tensile strength			Rm		MPa		≤ 1140
Hardness			HV		HV		≤ 315
Mechanical steel properties after toughening for the product with thickness of 0.3 mm ≤ t < 3 mm
Property			Symbol		Unit		Value
Ultimate tensile strength			Rm		MPa		1200 - 1700
Hardness			HV		HV		370-580
Effect of the cross-section on steel mechanical properties after toughening
Thickness, mm	0.3 ≤ 0.5	0.5 ≤ 0.75		0.75 ≤ 1	1 ≤ 1.5	1.5 ≤ 2		2 ≤ 3
Hardness HV	485-535	465-515		455-505	445-495	425-475		415-465

TECHNOLOGICAL TREATMENT PROCESSES:

Technological treatment processes			Possible application	Temperature, °C
Hot forming	Forging		-	-
	Rolling		+	(1180 - 850)
Treatment	Heat treatment	Quenching	+	815-845/w,o
		Tempering	+	(300 - 500)
	Precipitation strengthening	Supersaturation	-	-
		Ageing	-	-
	Annealing	Normalising	+	(800 - 830)
		Soft annealing	+	(650 - 690)
Thermochemical treatment	Carburising		-	-
	Other		-	-

INTERNATIONAL STEEL GRADES:

ISO		European Union		Russia
~CS 65	ISO 4960: 1999	C67S	EN 10132-4: 2000	~ 68GA	GOST 1071-81
US		Japan		China
~1070	ASTM A 689-97	~S 70 C-CSP	JIS G 4802 1999	~65	GB 1222-84

APPLICATION:

Steel susceptible for the flat springs thick up to 6 mm, spring plates etc.