High Carbon Steel:Hot Rolled Sheet for Quenching and Tempering

High carbon steels are steels which, becauseof their chemical composition are suitable forhardening, and in the quenched and tempered condition have good toughness at a given strength.The steels are produced in accordance with the standard EN 10083.

Dimension Range

High carbon steels are delivered in the following dimensions in the as rolled, pickled or annealed condition with mill edge.

Thickness:1.95-10 mm Width:885-1300 mm Length:1500-13000 mm

Application

High carbon steels are used for applications in which high strength, hardness and wear resistance are necessary, such as wear parts, knives, saw blades,springs, gear wheels, chains, brackets, washers etc.The formability is improved if the material is annealed before forming.

Chemical Composition

Grade	C(%) Min-Max	Si(%) Min-Max	Mn(%) Min-Max	P(%) Max	S(%) Max	Cr(%) Min-Max
C22	0.17-0.24	0.15-0.35	0.40-0.70	0.025	0.025	0.20-0.40
C35	0.32-0.39	0.15-0.35	0.50-0.80	0.025	0.025	0.20-0.40
C45	0.42-0.50	0.15-0.35	0.50-0.80	0.025	0.025	0.20-0.40
C55	0.52-0.60	0.15-0.35	0.60-0.90	0.025	0.025	0.20-0.40
C60	0.57-0.65	0.15-0.35	0.60-0.90	0.025	0.025	0.20-0.40
C67	0.65-0.73	0.15-0.35	0.60-0.90	0.025	0.025	0.20-0.40
C75	0.70-0.80	0.15-0.35	0.60-0.90	0.025	0.025	0.20-0.40

Mechanical Properties

Grade	Condition	Yield strength(MPa)	Tensile strength (MPa)	Elonga- tion (%)	Hardness HRC	Quenching Temperature (°C)
C22		360	510	28		-
C22		280	420	30		-
C35		440	700	18	-
		310	480	30	-
	Rolled		1845		53	840
	Annealed		1690		50	880
C45	Waterquenched	460	750	18
	Oil quenched	330	540	30
			2270		58	840
			1980		55	880
C55		500	825	18
		350	550	30
			2510		61	805
			2120		57	845
C60		540	875	17
		370	580	29
			2670		63	800
			2430		60	840
C67		570	925	16
		370	580	29
			2920		66	790
			2670		63	830
C75		600	1000	15
		370	570	28
			3000		67	785
			2760		64	825

Welding

Recommended fusion welding methods for high carbon steels include manual metal arc welding, gas metal arc welding and flux cored arc welding.

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