C55/1.0535 Constructional Steel Alloy Steel Rod Roubd Bar

• Customization: Available
• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Model NO.: Round bar
• Composition: Stainless Steel Scrap
• Technique: Forged
• Shape: Plate
• Surface Treatment: Black or as Required
• 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

APPLICATION:

Steel susceptible to the parts averagely exposed on loadings and more resistant to abrasion. Such as: wheels, rims, toothed shafts, cylinders, shafts, axles, pins, eccentrics; for springs lightly exposed on loadings, etc.

TECHNOLOGICAL INFORMATION:

After soft annealing, steel becomes machinable; if normalised and soft annealed, steel becomes adjusted for the mechanical cutting.

SEMI-FINISHED PRODUCTS:

After soft annealing, steel becomes machinable; if normalised and soft annealed, steel becomes adjusted for the mechanical cutting.

CHEMICAL COMPOSITION:

C	Mn	Si	P	S	Cr	Ni	Mo	V	W	Ti	Cu	Inne
0,52 - 0,60	0,60 - 0,90	Max 0,40	Max 0,045	Max 0,045	Max 0,40	Max 0,40	Max 0,10	-	-	-	-	Cr+Mo+Ni max 0,63

MECHANICAL PROPERTIES:

Effect of the cross-section on mechanical properties
If heat treated
Diameter d, mm Thickness of the flat bar t, mm	≤ 16 ≤ 8	16 - 40 8 - 20	40 - 100 20 - 60
Ultimate tensile strength Rm, MPa	800 - 950	750 - 900	700 - 850
Yield stress Re (Rp0.2), MPa	≥ 550	≥ 490	≥ 420
Elongation, A, %	≥ 12	≥ 14	≥ 15
Reduction of area, Z, %	≥ 30	≥ 35	≥ 40
If normalised
Diameter, d, mm Thickness of the flat bar t, mm	≤ 16 ≤ 8	16 - 100 8 - 100	100 - 250 100 - 250
Ultimate tensile strength, Rm, MPa	≥ 680	≥ 640	≥ 620
Yield stress Re (Rp0.2), MPa	≥ 370	≥ 330	≥ 300
Elongation, A, %	≥ 11	≥ 12	≥ 12

TECHNOLOGICAL TREATMENT PROCESSES:

Technological treatment processes			Possible application	Temperature, °C
Hot forming	Forging		+	(1050 - 850)
	Rolling		+	(1050 - 850)
Treatment	Heat treatment	Quenching	+	810-850/w,o
		Tempering	+	550 - 660
	Precipitation strengthening	Supersaturation	-	-
		Ageing	-	-
	Annealing	Normalising	+	825 - 885
		Soft annealing	+	(650 - 700)
Thermochemical treatment	Carburising		-	-
	Other		-	-

INTERNATIONAL STEEL GRADES:

ISO		European Union		Russia
~C55	ISO 683-1 1987	C55	EN 10083-2 1996	~ 55	GOST 1050 1988
US		Japan		China
~ M 1055	ASTM A 29-93	~S 55 C	JIS G 4051 1979	~ 55	GB 699-88