About TATA Steel

Apart from its Indian operations the Tata Steel group today comprises European operationsthrough Tata Steel Europe and South East Asian operations through Tata Steel Thailand andNatSteel Holdings, Singapore. The Group’s vision is to be the world steel industry’s benchmark in“Value Creation” and “Corporate Citizenship” through the excellence of its people, its innovativeapproach and overall conduct. Underpinning this vision is a performance culture committed toaspiration targets, safety and social responsibility, continuous improvement, openness andtransparency.

Tata Steel Group is among the top global steelcompanies with an annual crude steel capacity of27.5 million tonnes per annum (MTPA) as onMarch 31, 2017. It is the world's second-mostgeographically-diversified steel producer, withoperations in 26 countries and a commercialpresence in over 50 countries. The Grouprecorded a consolidated turnover of US $18.12billion (INR 117,420 crore) in FY17. Tata SteelGroup is spread across five continents with anemployee base of nearly 74,000.

TATA Steel Plant, Jamshedpur

New Age Construction Solutions

Welded Wire FabricWelded Wire Fabric or Welded Wire Mesh is one ofthe prefabrication solutions aimed at helpingcustomers raise productivity standards inconstruction. We do this by working closely withcustomers to deliver solutions that are customisedto the project requirements, redefining concepts oftime, inventory and manpower management, andmaterial wastage reduction.

Using of welded mesh enablesefficient construction. Projects getcompetitive edge and reducedconstruction cost due to enhancedspeed of construction.

TATA Steel Wire Rolling Mill, Jamshedpur

Welded Wire Fabric Manufacturing Process Welded Wire Mesh Manufacturing Process

Cold DrawingWire rods made of Low Carbon Steel of grades SAE (1008, 1010, 1012) with carboncontent less than 0.15% are cold drawn to achieve required tensile strength.

RibbingWhile cold rolling helps in increasing the tensilestrength, the ribbing guarantees the perfectbond with concrete. Ribbing gives the wire thevisual and mechanical properties similar to arebar. Crack widths in concrete elements arecontrolled to the minimum because force iswell distributed through bond effect of ribbedwire as compared to plain wire.

Electric WeldingA precise and semi-automatic type weldingmachine is used for making the weldedwire mesh in steel. This machine has achamber that is capable of delivering thewelds at calculated junctions which in thecase of a mesh is the points of intersectionof the horizontally and vertically alignedsteel wires. Electrical resistance is used forgenerating ample amount of heat to createthe weld. After the welding is done,another length of the parallel wires isforwarded into the machine and the sameprocess of welding continues. When thedesirable length of welded mesh isproduced, the process is stopped and themesh is cut into the demanded dimensionsto be used towards the particular purpose.

IS 1566- Hard drawn steel wire fabric for concretereinforcement with steel complying to IS 432-2

Physical Property Min Value Unit

UTS 570 N/mm2

Proof Stress (0.2%) 480 N/mm2

Ribbed ProfilePlain Profile

Product: Flat Welded Wire Mesh Applications of Flat Welded Wire Fabric

We offer a range of Flat Welded Wire Fabric or Mesh in wire diameters ranging from 5mm to 12mm in an interval of 0.5mm that can be used for reinforcement.

The fabric can be obtained in customized sizes for various applications, standard being 6m x 2.4m and maximum being 6m x 4m.

Welded Wire Fabric has been adopted across the world for vertical aswell as horizontal reinforcement.

Flat Welded Wire Fabric

Horizontal ReinforcementThe Flat Welded Wire Fabric can be used in horizontal reinforcements like floor slabs

Vertical ReinforcementWhen used in vertical reinforcement and precast structures, Flat Mesh would replace Brick and Mortar

Horizontal reinforcement used in floor slab

Vertical precast structure

Structure of a Flat Welded Wire Fabric

Main Wire

Cro

ss W

ire

Cross Wire Spacing

Main Overhang

Main Wire SpacingCross Overhang

Mesh of benefits

Early completion of Project due to easy

installation and easier delivery planning

Savings in steel by using diameter closer to design

area

Savings In steel due to lower lap length

Saving on labor charges-No marking, spacing and

cutting of bars

No scrap generationat site as cutting of bars

on site is reduced or eliminated

Reduction of joints hence reduction in binding wire

consumption

Simple reconciliation at site of construction.

Lower chances of theftReduced site congestion

Smaller diameter wires and closer spacing of wires provide more uniform stress distribution andmore effective crack control in slabs and walls as compared to larger diameter steel bars.

Modern Formwork Technology for Monolithic StructuresUse of formwork technologies like Mivan, Tunnel, Aluminum other system formworkenabling monolithic construction etc. are supported by the Flat Welded Wire Fabric.Welded Wire Fabric can be used in precast panels like panels and walls.

Welded Wire Fabric enables Technology and Compliance

Government RegulationsReal Estate (Regulation and Development) Act( RERA) seeks to impose regulationson the promoter and ensure that construction is completed on time.Mass Housing Projects directed by Ministry of Housing and Urban PovertyAlleviation, Public Private People Participation (PPPP) housing projects etc. have lowtimelines and hence use of Welded Wire Fabric enhances the speed and efficiency ofconstruction in these cases.

The wide range of wire diameters and spacing between wires available with us makes it possible tosupply Welded Wire Fabric which almost matches the exact cross sectional steel area required.

Quality Control in production and specifications is the assurance of conformity to specifications.Test Certificate is delivered with each batch of order for more confidence in the material as well asworkmanship of TATA Steel.

The dependence on human labour is reduced thus minimizing errors, reworks and delays. Various projects in India has already adopted this technology to reduce cost and speed up the project timelines.

The automated process of spacing and dimensional control reduces human errors in placing ofsteel reinforcement and increases accuracy in the fabrication of the mesh. The possibility ofdisplacement of steel bars prior to and during concreting is much reduced.

Consistency and Accuracy

Fully AutomatedProcess of Spacing and Electric

Welding which guarantees quality and accuracy

Timely DeliveryEnsures timely completion of project and minimum delay

CustomizationAccording to your project and structures gives high robustness and more savings

Wire diameter available at an interval of 1mmSpacing available at minimum 100mm Invoice will be made on square metre basis

Type A Square Fabric200mm main wire spacing 200mm cross wire spacing

Type B Rectangular Fabric100mm main wire spacing 200mm cross wire spacing

Type D Small Square Fabric100mm main wire spacing 100mm cross wire spacing

Type E Square Fabric150mm main wire spacing150mm cross wire spacing

The following Fabric are considered standard

Wire Spacing Wire Diameter Cross Sectional Area Mass per AreaMain Cross Main Cross Main Cross

Mm mm mm mm mm2/m mm2/m Kg/m2

Square WWM

A6/6 200 200 6 6 141 141 2.22

A7/7 200 200 7 7 193 193 3.02

A8/8 200 200 8 8 251 251 3.95

A9/9 200 200 9 9 318 318 4.99

A10/10 200 200 10 10 393 393 6.17

A11/11 200 200 11 11 475 475 7.46

A12/12 200 200 12 12 566 566 8.88

D6/6 100 100 6 6 283 283 4.44

D7/7 100 100 7 7 385 385 6.04

D8/8 100 100 8 8 503 503 7.89

D9/9 100 100 9 9 636 636 9.99

D10/10 100 100 10 10 786 786 12.33

D11/11 100 100 11 11 951 951 14.92

D12/12 100 100 12 12 1131 1131 17.76

E6/6 150 150 6 6 189 189 2.96

E7/7 150 150 7 7 257 257 4.03

E8/8 150 150 8 8 335 335 5.26

E9/9 150 150 9 9 424 424 6.66

E10/10 150 150 10 10 524 524 8.22

E11/11 150 150 11 11 634 634 9.95

E12/12 150 150 12 12 754 754 11.84

TATA Steel Welded Wire Fabric SpecificationsStandard Wire Fabric

TATA Steel Welded Wire Fabric Specifications

Wire Spacing Wire Diameter Cross Sectional Area Mass per AreaMain Cross Main Cross Main Cross

Mm mm mm mm mm2/m mm2/m Kg/m2

Rectangular Welded Wire Fabric

B6/7 100 200 6 7 283 193 3.73

B7/7 100 200 7 7 385 193 4.53

B8/8 100 200 8 8 503 251 5.92

B9/8 100 200 9 8 636 251 6.97

B10/8 100 200 10 8 786 251 8.14

B11/8 100 200 11 8 951 251 9.43

B12/8 100 200 12 8 1131 251 10.85

B12/12 100 200 12 12 1131 565 13.32

B12/11 100 200 12 11 1131 475 12.61

B12/10 100 200 12 10 1131 393 11.97

B12/9 100 200 12 9 1131 318 11.38

B12/7 100 200 12 7 1131 192 10.39

B11/11 100 200 11 11 950 475 11.2

B11/10 100 200 11 10 950 393 10.55

B11/9 100 200 11 9 950 318 9.96

B11/7 100 200 11 7 950 192 8.98

B11/6 100 200 11 6 950 141 8.57

B10/10 100 200 10 10 785 393 9.25

B10/9 100 200 10 9 785 318 8.67

B10/7 100 200 10 7 785 192 7.68

B10/6 100 200 10 6 785 141 7.28

B9/9 100 200 9 9 636 318 7.49

B9/7 100 200 9 7 636 192 6.51

B9/6 100 200 9 6 636 141 6.11

B8/7 100 200 8 7 503 192 5.46

B8/6 100 200 8 6 503 141 5.06

B7/6 100 200 7 6 385 141 4.13

B6/6 100 200 6 6 283 141 3.33 TATA Steel Limited, TATA Centre, 43, Jawaharlal Nehru Road, Kolkata – 700071, IndiaPhone: +91 33 2288 7051, 2288 9251