Steel Round Bar Rod Coil Spring

• Customization: Available
• Type: Coil
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Model NO.: Steel Strip
• Composition: Ferrous Steel Scrap
• Technique: Forged
• Shape: Bar
• Surface Treatment: Machined
• 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

CHEMICAL COMPOSITION:

C	Si	Mn	P	S	Cr	Mo	Ni	B
0,62-0,70	0,17-0,37	0,90-1,2	-	-	Max. 0,25	-	-	-

MECHANICAL PROPERTIES:

	Unit	Value
Hardness after thermal treatment	HB	Max. 241
Quenching in oil	Temperature	830 °C
Tempering	Temperature	470 °C
Yield stress	Re (Rp0.2), MPa	Min. 785
Ultimate tensile strength	Rm MPa	Min. 980
Elongation	A, %	Min. 8
Reduction of area	Z, %	Min. 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		+	800 - 1180
	Rolling		+	850 - 1180
Heat treatment	Annealing	Normalising	+	810 - 830
		Soft annealing	+	640 - 680
	Heat treatment after carburising^1)	Quenching	+	810 - 830
		Tempering	+	640 - 680

APPLICATION:

This steel is particularly suitable for fabricating small cross-section springs and leaf springs, thanks to its specific hardenability properties.
Our steel, commonly referred to asannealed spring steel,is recognized as a versatile "general use" steel, celebrated for its diverse
applications and adaptability. At Mead Metals, we offer an extensive range of spring steel products, encompassing various grades,
sizes, gauges, and more. Spring steel's unique characteristics make it an exceptional choice for manufacturing springs
and other related components, ensuring durability and performance.