Smooth Alloy Steel Round Bar Rod

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

Steel specifically engineered for small cross-section springs and leaf springs, exhibiting low hardenability.
Commonly referred to as spring steel,annealed spring steel, is renowned as a "general use" steel due to its extensive
applications. Mead Metals offers an impressive array of spring steel products, encompassing various grades,
sizes, gauges, and more. The unique properties of spring steel make it exceptionally suitable for manufacturing springs
and other similar high-performance components.