Tata Steelium

Application segment	Automotive				Panel						Furniture		General Engineering
TDC No.	AU03		AU09		PN02		PN03		PN04		TR08 *		TR15
Grade	DQ		EDD		DQ		DQ		DQ		CQ		CQ
Dimensional	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max
Thickness Range (mm)	0.4	3.2	0.4	3.2	0.8	3.2	0.8	2.5	0.8	1.6	0.35	1.2	0.4	3.2
Width Range	1000	1540	1000	1525	1000	1540	1000	1525	1000	1525	900	1250	1000	1540
Thickness Tolerance +/- (mm)	0.5% on Central Line Thickness		0.5% on Central Line Thickness		0.5% on Central Line Thickness		0.5% on Central Line Thickness		0.5% on Central Line Thickness		0.5% on Central Line Thickness		0.5% on Central Line Thickness
Width Tolerance Min (-ve) mm	0		0		0		0		0		0		0
Width Tolerance Min (+ve) mm*	12		3		12		3		3		12		12
Mode of Forming	Drawing	Bending	Drawing		Bending		Bending		Bending		Bending		Bending
Chemistry	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max
% C	0.035	0.07	0.025	0.05	0.02	0.06	0.02	0.06	0.02	0.06		0.1	0.035	0.1
% Mn	0.2	0.4		0.2	0.1	0.25	0.1	0.25	0.1	0.25	0.4	0.6	0.3	0.6
% Si		0.04		0.015		0.03		0.03		0.03		0.05		0.1
% S		0.02		0.012		0.015		0.015		0.015		0.025		0.04
% P		0.025		0.015		0.025		0.025		0.025	0.02	0.045		0.04
N (ppm)		60		55		60		60		60
% Al	0.02		0.025	0.06	0.021	0.06	0.021	0.06	0.021	0.06	0.02	0.07
% B					0.002		0.002
Mechanical Properties	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max
YS (Mpa)	140	220		180		270				270
UTS (Mpa)	280		275	350	270	410			270	410
% El	35		45		30				30
Hardness (HRB)		50		40		55		55		55	55	65	55	65
Bend	ok		ok		ok		ok		ok		ok		ok
ECV (mm)	9.1
Surface Characteristics	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max
Ra	0.8	1.6	0.8	1.2	0.8	1.4	0.8	1.4	0.8	1.4	0.6	1.6	0.6	1.6
Shape	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max
Waviness (mm/500mm)		8		5		4		3		3		8		8
Centre Buckle (mm/500mm)		8		5		4		3		3		8		8
Camber (mm/1000mm)		1		1		1		1		1		1		1
											* Negative thk tolerance

Our Products

CR Steel Coils and Sheets

Adventages

Consistent mechanical properties.

Consistent thickness.

Absolute Flatness.

Regular availability of grades- High Tensile, CRCA

Processed material customised to your needs- CTL, CTS.

Product application & Engineer support.

Packaging & Source authenticity.

Characterstics

Excellent Surface Finish.

Flatness.

Formability & Drawability.

Workability.

High Strength to Weight Ratio.

Close Dimensional Tolerances.

Controlled Mechanical Properties.

Spectrum of Applications

Automobiles.

Telecommunications & IT.

Home Appliances.

General Engineering.

Furniture.

Drums and Barrels.

Our Valued CR Customers

Corporate Office

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