Reinforcement Bars - NatSteel

1 Reinforcement BarsNatSteel traces its lineage to 1961, when it was incorporated as National Iron and steel Mills. A pioneer and key partner in Singapore s nation building efforts, our products are used in most construction projects island-wide, from the iconic Changi International Airport to the public housing that is the trademark of Singapore s landscape. Singapore is home to NatSteel s headquarters, as well as its flagship plant, which boasts one of the largest single downstream rebar fabrication operations in the world. The Singapore plant is the only local steel mill with an integrated upstream and downstream operation, where steel is manufactured through recycling scrap, and fabricated according to customers needs. With operations spanning across the region, the group has an annual steel production capacity of over 2 million today continues to build on its success as a leading steel producer in Asia Pacific, with over 3,000 employees across the region.

2 Tata steel is among the top global steel companies with an annual crude steel capacity of over 28 million tonnes with major foot prints in India, the UK, Netherlands, Thailand, China and Australia. As part of the Tata steel group, NatSteel is poised for further growth, with its sights set on becoming the global steel industry benchmark for value creation and corporate Holdings a leading Pan-Asian company that delivers premium steel products and solutions for theconstruction industryContentsAbout NatSteelSteel MakingSteel RollingAbout NatSteel s Reinforcement Bars Specifications of Reinforcement Bars Applications123 STEELMAKINGThe only steel mill in Singapore, NatSteel has one of the most energy-efficient steel making operations in the world. Typical steel mills operate electric arc furnaces using more than 400 kilowatt hours of energy to produce a tonne of steel . NatSteel does the same with 30% less energy.

3 Melting ProcessProcessed metal waste is melted in the electric arc furnace with fuel oil burners and high voltage current, enriched by oxygen Refinement and Temperature ControlMolten steel is transferred to the 80-tonne Ladle Furnace for chemistry refinement and temperature CastingRefined molten steel flows through a 4-strand high speed caster. Billets are casted and are directly hot charged to the rolling mill, resulting in fuel oil ROLLINGAt the Merchant Bar Mill, billets are heated in a reheating furnace and rolled through a sequence of rolling stands which progressively reduce the billets to the final sizes of Reinforcement bars through an automated process. NatSteel is capable of using Micro Alloy or Tempcore heat treatment process to produce high strength reinforcing bars which are highly malleable and FurnaceFrom the meltshop, an automated conveyor system transfers billets into the reheat furnace for rolling process, reducing the heat loss required for reheating and rolling.

4 Rolling Stands A sequence of fully automated and water-cooled roll stands that gradually reduce billets to required ProductsBillets are rolled into Reinforcement bars. Small diameters rods are also produced at fast design speeds with precise tolerance control using a six-pass bar block. 67 Singapore & MalaysiaSpeci cationsGradeYieldmin(N/mm2)Ratio(min) (min %)Agt(min %)Bend(size : mm)Rebend(size : mm)SS560 : 2016 SingaporeB500A500 - 650<8 8 <8mm : 8mm: cationsGradeYieldmin(N/mm2)Tensilemin(N/mm2)Ratio(min) (min %)Agt(min %)Bend(size : mm)Rebend(size : mm)BS 4449:2005 United KingdomAS/NZS 4671: 2001 Australia/New Zealand B500B500 - <16mm : 4D> 16mm : 7D(90 - 1hr - 20 )MS 146 : 2014 MalaysiaB500A500 - 650< 8 8 < 8mm : 8mm : 16mm : 4D>16mm : 7D(90 - 1hr - 20 ) 16mm :3D>16mm : 6D(160 - 180 ) 16mm : 4D> 16mm : 7D(90 - 1hr - 20 )same as B500 Asame as B500AB500B500 - - sizes : 4D( 16 bend 90 20 bend 180 ) 16mm : 4D 20mm.

5 NA(90 - 1hr - 20 )500E500 - - ectiveE ective10same as 500 Nsame as 500NB500B500 - as B500 Asame as B500 Asame as B500AB600B600 - - (90 )3D (90 - 1hr - 20 ) as 500 Nsame as 500N300E300 - - as 500 Nsame as 500 NIS 1786 : < 8mm:~ 8mm:~ < 8mm:~ 8mm:~ < 8mm:~ 8mm:~ < 8mm:~ 8mm:~ ective 20mm ~ 3D> 20mm ~ 4D(180 ) 16 ~ 4D>16 ~ 7D(90 - 60min - 20 ) 10mm ~4D>10mm ~ 6D(45 - 30min- ) 16 ~ 4D>16 ~ 7D(90 - 60min - 20 )1414 SLS 375 : 2009 Sri LankaRB 4604603D(180 )Nominal54056062010 M D < 25 M ~ 13 30 M D < 55 M ~ 12 CSA - 09 2012 Canada400W400 - 52510 M - 15 M ~3D20 M - 25 M ~4D30 M - 35 M ~6D45 M - 55 M ~8D(180 )RB 500500 - 6503D(180 )NominalNominal<32mm ~18 32 D < 40mm ~ 1640mm~14 32mm ~14 32 D < 40mm ~ 1240mm~10 SNI 07 - 2052 - 2002 IndonesiaBj TS 403905D(180 )Bj TS 50490 25mm ~ 5D> 25mm ~6D(180 )NominalNominal620420 ASTM A615 United StatesG604203 - 5~ - 8 ~ 5D9 - 11 ~ 7D14 - 18 ~ 9D(180 )G402803,4,5 ~ ~ 5D(180 )

6 Item Description Storage space Space required for site storage of steel Reinforcement can be reduced by up to 20% steel Savings Potential to reduce steel Reinforcement by up to 20% compared to Grade 500 steel Logistics Up to 20% less trucks delivering reinforcements to site frees up site space and saves crane, manpower & time Site Crane Handles up to 20% less steel and frees up crane time for other construction activities thereby speeding up constructionConcrete Savings Reduction in structural element size is possible when used with appropriate grade of concrete and results in overall dead load being reduced More usable space More oor space is usable with column size reductionLess formwork Possible to reduce formwork needed for Columns and Beams due to member size reduction Lighter foundations Due to reduction in members size resulting in lighter super structure, foundation loads and cost can be reduced Manpower - steel fixing / InstallationUp to 20% less workers are required to install / x steel Reinforcement onsite Improved Safety Site safety will be improved due to less material handling, steel xing etc Time reduction Overall time savings can be accomplished by factoring in the earlier stated bene ts Cost reduction Overall cost reduction can be achieved from reduced Material, Manpower, Construction Time etc EnvironmentReduced Construction noise, Fuel consumption etc steel mass for various Reinforcement bar sizesMild steel round barDeformed BarsDiameter (mm)68101310131620222528324050 Mass (kg/m) (m)66121212121212121212121212 Weight / bundle (mt)

7 * *Bundle sizes may varyABOUT NatSteel S HIGH STRENGTH GRADE 600 Reinforcement BARSE mploying advanced technology, NatSteel s High Strength Grade 600 Reinforcement bars are manufactured in accordance to stringent world-wide quality assurance standards. Benefits of using Grade 600 steel Vs. Grade 500 Physical Properties of Reinforcement Bars PROMISE OF QUALITY TO CUSTOMERS 500E MA 500E MA 600 600 89 NatSteel s rigourous quality checking and assurance process ensures the quality of its steel products delivered to customers The company s products are certified to national and international standards for local use as well as export to numerous overseas marketsNatSteel has a rigourous quality checking and assurance process to ensure the quality of its steel products delivered to customers. This is to avoid potential project delays or consequential costs resulting from the use of non-complying building materials.

8 NatSteel supplies steel materials in accordance to current standards such as SS560, BS4449 and is also certified to other international standards by certification bodies such as SIRIM, SNI, BIS, SLS and ACRS for export to numerous overseas certification scheme for continuous production consists of three stages:1. Suitability testing This ensures that the producer ( NatSteel in this instance) has the capability and resources to produce reinforcing steel in accordance with the requirements specified in the product standards. 2. Internal inspection by the producer This ensures that the level of quality remains satisfactory with time through continuous internal inspection of production by the producer. 3. Inspection and supervision by an external body External inspection and supervision is carried out at maximum intervals of six months, to check the compliance of continuous inspection of the conditions of production.

9 The certification of NatSteel s product according to numerous standards is a testament to the company s stringent quality assurance and checking 2015 NatSteel Holdings Pte Ltd. All rights reserved. No portion of this publication may be produced or copied in any form or by any means without the written permission of NatSteel Holdings Pte no: 92-2-0081SS ISO 9001 : 2008 Cert no: EnMS-2012-0001SS ISO 50001 : 2011 Cert no: 2000-0105SS ISO 14001 : 2004 Cert no: OHS -2003-0057BS OHSAS 18001 : 2007 NatSteel Holdings Pte Ltd22 Tanjong Kling RoadSingapore 628048T: +65 6265 1233F: +65 6265 8317E: Reg. No. 200810196Z