Tata SteelLegacy of TrustTata Steel is amongst the top-ten global steel companies with a crude steel production capacityof 26.5 million tonnes per annum (mtpa). A Fortune 500 Company, the Tata Steel Group is theworld’s second most geographically diversified steel producer, employing over 80, 000 people innearly 50 countries.

The Group’s Vision is to be the world steel industry benchmark in “Value Creation” and “CorporateCitizenship” through the excellence of its people, its innovative approach and overall conduct.The Tata Steel Group recorded a turnover of US $ 26.13 bn in the year ended March 31, 2012.

Contents

Tata Astrum 1

The Basket of Offerings 2

Process Flow 3

Leading Edge Technologies 4

Steel Making 5

Hot Strip Mill 6

LD#3 & TSCR Mill 7

Pickling and Skin Passing 8

Shearing Line 9

Quality & Process Control 10

Testing Parameters 11

Our Customers 12

Automotive 13

Lifting & Excavation 14

Railways 15

Projects & Fabrication 16

Tube Manufacturing 17

Spectrum 18

Product Range 19

A World of Benefits 20

More for You 21

Pan-India Distribution 22

Service Centres 23

Annexure 24

Tata Astrum, HR sheets & coils from TataSteel, is the new star in themanufacturing industry that will redefinethe norms of the market by virtue of itsimpeccable quality and best-in-class serviceofferings.

Hot rolled coils and sheets have been thebackbone of the infrastruc ture andmanufacturing sector for years now. TataAstrum shall strive to support the growth inthese sectors by addressing the unmet needsof customers and providing end to endsolutions. With its wide range of products, TataAstrum can serve customers from differentsegments viz. Automotive, Railways,Yellow Goods, Agriculture, Fabrication, etc.

ThePan-India network of distributors to serve

Wide Range of grades for a host ofapplications

Basket ofOfferings

you at yourconvenience

Steady availability in various thickness &width combinations

Cut-to-length sheets/slit coils fromcertified service centers

P r oduc t Marking to ensur e sourceauthenticity

Product Application Engineer Supportto recommend the correct gradeandusage

Test certificates with mechanical properties

Customer Engagement & KnowledgeSharing Programs

LD#3

&TS

CR*

Rou

teH

SM*

Rou

te

PROCESS FLOWRAW MATERIAL TO END PRODUCT

LLeeaaddiinngg EEddggeeTTeecchhnnoollooggiieess

From steel making to final finishing, the entireproduction line i ncor por a te s s ta te - o f-the -arttechnologies and processes that make Tata Astrum abest-in-class product.

* HSM - Hot Strip Mill * TSCR - Thin Slab Caster & Rolling Mill

3

Steel makingThe first level of differentiation takes place in the steelmaking shop is to meet the variety of customerrequirements through appropriate grade chemistry.

Our steel is made and cast to the requisite parametersin LD2 & Slab Caster (Steel-Making & Casting Shop). Theshop is equipped with all modern facilities to be able toproduce the best quality steel adhering to stringentquality parameters.

It has the following facilities:

• Desulphurization stations for low-sulphur steel

• Argon stirring and alloy additions at ladle furnace

• Degassing facility (RH) for low residuals and gas levels,required for IF grade steels

• One vertical bending (improved cleanliness) andtwo curved casters

• A semi-automatic scarfing machine forinspecting surface level defects

Hot Strip MillHot Strip Mill

LD#2

LD#2 & Slab Caster is capable of producing a verywide range of steels – from low carbon steels to specialalloy and high carbon steels.

Slab Caster

After the steel is cast into slabs, it is transferred to the Hot Strip Mill (HSM) where it is rolled tothe desired thickness & width. The rolling and subsequent cooling is done in a manner so asto ensure that the final product (HR coil) attains its requisite mechanical properties (as perdesign parameters).

In order to meet the quality and volume requirements the HSM is equipped with 3 Re-heatingFurnaces, 1 Reversing Mill and 1 six-stand finishing mill (4-Hi).

The unit is equipped with:

• Automatic controls to ensure proper heatingof slabs

• Automatic Width Control (AWC) facilitateswidthcontrol and adjustments based ononline inputs with the help of activated hydraulic cylinders

• Coil-box for temperature homogenization leadingto uniformity in properties along the length

• Profile Contour & Flatness Control (PCFC) helps in maintaining perfect flatness throughonlinemonitoring & adjustment

• Automatic Gauge Control(AGC) ensures consistent thickness by hydraulic gap and gaugecontrol

• Continuous Variable Crown (CVC) ensures minimal & uniform crown throughoutthe length of the coil

5 6

Parameters Values

Strip Thickness 1.2mm to 5mm

Strip Width 900mm to 1500mm

Weight 30 T (max)

Coil I/D 610 mm

Parameters Values

Strip Thickness 1.2mm to 3.2mm

Strip Width 800mm to 1270mm

Weight 28 T (max)

Coil I/D 610 mm

Coil O/D 2150mm (max)

Pickling andSkin Passing

Run out Table at TSCR

LD#3 & TSCR Mill

PICKLING & OILING

Hot Rolled coils have an oxide film or scales ontheir surface. Pickling cleans these scales to give thehot rolled coil surface a better look and finish.

Through a continuous process, the HR coilis uncoiled and sent through a series of inorganicacid bath (hydrochloric or sulphuric acid) thatremoves the oxides/scales (rust) from thesurface (top & bottom). Post the picklingprocess, the strip is properly rinsed and thenoiled. Pickling and oiling process enhances thesurface finish and improves the shelf life of steel.Pickled and oiled steel sheets and coils are idealfor applications that require an even finish.

PICKLING, OILING & SKIN PASSING

Skin-passing of the coils is done post the pickling &oiling process. Skin passing is a light coldrolling operation which suppresses theappearance of stretcher strain and minimizescoil break during uncoiling and subsequentprocessing. It produces a smooth surface, makesthe thickness of the coil

Tata Steel supplies HRPO & HRSPO steel fromits in-house facilities in CRM Bara as well as fromits EPAs.

CRM, Bara Specifications for HRPO:

Parameters Values

Strip Thickness 1.2mm to 6mm

Strip Width 700mm to 1650mm

Weight 30 T (max)

Coil I/D 762mm

Coil O/D 1000mm to 2150mm

BMW, Gamharia Specifications for HRPO:

Thin Slab Caster & Rolling Mill

The Thin Slab Caster & Rolling Mill (TSCR) is thenewest addition to the Flat Products Complex. Themill was commissioned on the 14th of February’12and is equipped with all the latest technologies tocater to differentrequirements of the customers.

It is an integrated shop where steel is made in thesteel making shop (LD#3), then cast and rolledcontinuously. Unlike the HSM, there is no slab stagein this mill and thus it reduces the time lag.

LD#3 &TSCR has the following facilities:

• 2 De-sulphurization Stations, 2 BOFConverters,

2 Online Purging (OLP) Stations & 2SingleStrand Casters

• Two tunnelfurnacesand one emergencycropshear

• One 4 Hi 6 (+1) stand finishing mill withlaminar cooling facility followed by 2 down-coilers

Unique Features to ensure best-in-class product:

• Vertical Caster equipped with LiquidCore Reduction and Dynamic Soft Reductionfor better segregation control

• C a l c i um tr ea tm e n t for h i g h e rs t e e l cleanliness

• Mill capable of rolling thinner (1 mm min)and wider (1680 mm max) sections

• Dynamic Continuous Variable Crown(CVC) and Work Roll Bending (WRB)technology for better control of profile,flatness and contour of rolled strip

• Dynamic Disturbance Compensators(DDC)

for improved thickness tolerances

• Hydraulic Gap Control (HGC) for rollgap adjustment & Automatic Gauge Control(AGC)

• Edge masking on the run-out tablefor homogeneous mechanical properties

uniform and does minor corrections in mechanicalproperties.

The skin-passing process involves passing the coilthrough a set of rolls. The rolls induce a predefinedamount of force on the HR surface whichmakes thesurface smoother and corrects the yield pointphenomenon.

CRM, Bara Specifications for HRSPO:

Shearing LineThe Shearing Line at the Hot Strip Millenables Tata Steel to serve customers whorequire Hot Rolled Sheets and Plates of variousgrades.

The Shearing Line is about 100 metres long withthe following facilities: uncoiler, 5 roll flattener, 9& 17 roll levellers, flying shear, conveyorbelts, stackers, discharge table and weigh bridgein a continuous line. The line is controlled by ahighly automated system employing controldesks, sensors and transducers,programmable logic controllers and man-machine interfaces which are integrated withlevel-3 control systems.

Automated systems ensure proper dimension ofthe product. The line is equipped with a manualinspection provision where trained inspectorsscreen the product for any abnormality. Otherfeatures of the Shearing Line include automaticproduction recording of plates and bundles.

Quality &Process Control

All the production lines are equippedwith the latest technologies and haverobust quality control mechanismsto check any abnormality in theprocess which might hamper theproduct quality.

C o n t i n u o u s Va r i a b l e C r o w n ,Thickness Control, Profile Controland Flatness Control (PCFC) andAutomatic Width Control (AWC) aresome of the features which enable usto ensure that the material producedmeets customer needs.

Inspection:

StripCrop Shear

The ProcessInspection Mirror Flying Shear

Since the surface of the hot rolled steel iscritical to any application, we have dedicatedsurface inspection systems to ensure topquality.These include :

• Online Surface Inspection System (SIS):Auto

Centre5RF 9RL 17RL

LProcess Control Chart Online

T h e s y s te m inspects c o i l s d u r i n gprocessing and helps detect the surfacequality correctly. This improves accuracy

PR PR PR and reduces decision-making time.Uncoiler Mechanical

GuidesMeasuringRoll Stand Entry PR

SPINDLE SHAPE FINISHING MILLWORKROLLS • Manual Inspection – Certain grades ofcoils which are used for specialisedoperations

Belt Conveyor Sa Sta Sta Sta StaGross Weigh Station an d h av e e xtreme cr i t i c a l surface

requirements are uncoiled and manuallyinspected for any defects.*

THICKNESS CONTROLLER

Legends:RL - Roll LevellerPR - Pinch Roll

Storage of Sheet/Plate

PCFC

WORK ROLL BENDING

SHAPE METER

C V C System

F1 F2 F3 F4F5 F6

THICKNESS CUMPROFILE METER

Thickness Control

RF - Roll Flattener, RL - Roll Leveller, PR- Pinch Roll, Sta -Stacker

9

F1 F2 F3 F4 F5F6

FINISHING MILL

PCFC System

* Only coils of certain grades and meant for certainapplications are checked manually.

10

Bend testing Impact Testing

TestingParameters

Wrichsen cupping testing

11

Tensile Testing

Hardness testing

Chemical Composition:The chemical composition of the steel is tested at thesteel making stage and the results are mentioned inthe test certificate.

Elongation:The elongation of a material is basically thepercentage change in the length of the material whentension is applied along the length. All our materials aretested for their elongation and the value is mentionedin the test certificate.

Tensile Testing :Tensile testing helps in finding out the maximum tensileload that the material can bear. It helps in specifying theUTS(1) as well as YS(2) of the material.

Impact Testing:It helps in establishing the impact load bearingcapability of the material, that is, the force required tofracture it. It is a measure of the toughnessof the material.

Bend Test:The bend test essentially measures a metal'sductility. Ductility defines how easily a metal canbend without breaking. The higher the ductility of ametal, the more it can bend without breaking orbecoming deformed from its original shape. Our labsare equipped with the machinery to carry out thebend test and provide the tested value on the TestCertificate.

(1)Ultimate Tensile Strength(2)Yield Strength

AutomotiveIndustry

Lifting &Excavation

We believe that Hot Rolled Productsforms the building blocks of lifting andexcavation equipment. Be it the cabin of atipper or the bucket of the excavator, eachhas to be made from the right grade ofsteel to ensure style and durability.Our range o f h i-tensile steel suitsthe requ irement s o f load bear ingcomponents and our formable grades ofsteel can be used to manufacture thesmaller engine/cabin components.

Tata Steel has been a preferred steel supplier to almost allthe major automobile manufacturers and their vendors inthe country for over a decade. From our years of servingauto customers we have developed competencies thatare important for the industry. Be it customized sizerequirement or prudent stock management, we arecapable of partnering our customers in their progress.Tata Astrum can be used for manufacture of LM/CM, axles,wheel components, brackets, mountings etc. AshokLeyland, Tata Motors, Toyota are some of our major HRcustomers.

Tata Astrum is supplied along with a test certificate whichcarries the details of all the mechanical properties of thesupply lot, to make work easier for our customers.

13 14

Projects &Fabrication

As India treads its growth trajectory, infrastructure is an area which willgrow at breakneck speed. Industrial projects and fabrication jobworkwill aid this growth. Tata Astrum's structural and hi-tensile grade steelsare available in a wide range of thicknesses and widths. In orderto authenticate the materialas Tata Astrum, the logo of thebrand will be imprinted on the surface *(will beavailable in some time). Our water-marked testcertificates further help in differentiating ourmaterial.

RailwaysRailways is a segment where Tata Steel’s productshave found ample use for over a decade now. TataAstrum complies to BIS and IRS standards whichare mandatory requirements of Directorate ofRailways. Tata Astrum finds its uses in a host ofapplications like engine / coach components,spring planks, axles etc.

*HR sheets, can be made availableto our customers in the sizesthat they require, if suitablypacke