people have world wide in last 30 years because of · PDF fileStandards as AS/NZS 4671:2001 &...
Transcript of people have world wide in last 30 years because of · PDF fileStandards as AS/NZS 4671:2001 &...
10,00,000
people have Diedworld wide
in last 30 yearsbecause
of Earthquakes
PREMIER BARS PVT. LTD.
CORPORATE OFFICE
4th Floor, Nidhi Kamal Tower, Ajmer Road, Jaipur-302006
Tel.: 0141 - 4053444, Fax.: 0141 - 4053450
Web: www.defendoqtr.com | E-mail: [email protected]
WORKS
A/106, Bagru Extn.-II, RIICO Indl. Area, Bagru , Jaipur
Tel.: 0141 - 2864144, Fax.: 0141 - 2864168
PREMIER ISPAT LTD.F-4&5, U.P.S.I.D.C. Indl. Area
Jainpur, Kanpur Dehat (U.P.)
PREMIER ALLOYS LTD.B-54 &55 U.P.S.I.D.C. Indl. Area
Malwan, Fatehpur (U.P.)
PREMIER METCAST PVT. LTD.GH-3&4, U.P.S.I.D.C. Indl. Area
Jainpur, Kanpur Dehat (U.P.)
PREMIER PIPES LTD.Harsinghpur, P.O. Mauhar,
Bindki Road, Fatehpur (U.P.)
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Yourconstructionhas to
Defenditselffrom invisibledisasters.
Earthquake frequencies & magnitude are on the rise globally...
There are countless examples around the world of lives being lost
from collapse of structures & buildings, which have failed due to not
being built with the prescribed & standardized reinforcement steel.
Architects and engineers worldwide are becoming rigorously stringent
and demanding as far as usage of reinforcement steel is concerned.
India's need for high-strength and high-ductility rebars has seen a
tremendous upswing in terms of consumption because of rapid
urbanization and with the fact that 60% of India is in the high-hazard
seismic zones 3, 4 and 5.
Striving for
EXCELLENCE
To corroborate this fact a primary qualitative research with a sample
size of 3000 users was conducted by us in and around northern India
and respondent included:
Trade dealers (wholesale & retail)
Builders (institutional & individual)
Key influencer group like architects, engineers & bar benders
Retail end consumers
Market wanted a product which would be quality wise similar to
that of primary producers.
Respondents were quite aware of the high ductility and high
yield strength feature of rebar for a more Safe & secure
construction.
Price wise respondents wanted a more comfort zone when
compared to primary producers.
Findings
Why A New Rebar?
PRESENTING A NEW GENERATION
HIGH STRENGTH REINFORCING STEEL
Outcome of the research
has strengthen our strategy
to introduce a more Ductile
Rebar, which can be used in
all high-grade construction
with safety and performance
under adverse conditions of
prime concern.
“MADE TO THE HIGHEST STANDARDS”
Available in sizes (mm)8 10 12 16 20 25 28 32
Fe 500D
AnISO 9001:2008
Company
Defendo QT Rebars are rolled out using one of the most recognized
and worldwide trusted TEMPCORE PROCESS for producing high
strength reinforcing steel.
Defendo QT Rebars are quenched to red-hot rolled steel immediately
after the last stage of hot rolling. A hard and strong martensitic outer
casing is formed, which the internal heat of the bar tempers to some
extent, while the centre cools more slowly to form a softer more
ductile Ferrite/Pearlite core.
This is Quench and Self Tempered (QST) process & is the combination
of high strength case and ductile core working in conjunction with one
another, which provides the mechanical properties as stipulated by ISI
and International Standards.
“In-line quench & tempering process”
Ordinary Bars
WrongCorrect
The TechnologyTHAT DEFENDS
Modern, futuristic & critical structures.
Constructions & structures in seismic zones 3,4 & 5
POWeR tODeFeND
Why choose
DEFENDO ?
Lower steel consumption, savings upto 25%.
High strength & uniform elongation.
More depth in ribs & higher bond strength.
Fair price when compared to primary producers.
Combined level of Sulphur & Phosphorus restricted
to max. of 0.070% as per BIS.
Approved in most government & private sector
projects.
Adheres to ISI:1786:2008 & various International
Standards as AS/NZS 4671:2001 & DIN
488:1986.
1
2
3
4
5
6
7
7 good reasons
Chemical composition tested Billets as per IS:2830/2008 are
used as a raw material for manufacturing our rebars.
If chemical analyses of Billets are satisfactory and confirming to
the requirements as specified in IS: 2830-6914, the said raw
material is utilized for further processing otherwise marked and
returned.
ROLLED ONLY FROM BILLETS
Defendo QT rebars display uniform elongation across the entire length as compared to uniformity only at fracture as per BIS code. This poses a grave risk to residents of building in high seismic hazard places.
Defendo QT Rebars exhibits desired range of Carbon, very low levels
of Sulphur & Phosphorous and also has excellent dimensional
tolerance and surface finish.
Sulphur (S) and Phosphorus (P) in varying levels, reduces the strength
of steel in extreme hot and cold conditions thus making it brittle and
prone to develop cracks.
Premier Defendo QT fully conforms to the IS: 1786:2008 and other
internationally accepted standards such as British standard B.S.
4449 Grade 500, Australia-New Zealand standard AS/NZS 4671
Grade 500E and meets the major requirements of both the U.S.
standard ASTM 706 and the Japanese standard JIS G3112 SD 490.
It is these distinguishing quality milestones, which makes Defendo
stand out from other Generic TMT brands and offers same quality as
by other primary producers.
Chemical Properties
Element Fe 500 D(IS 1786/2008)
Defendo QT
Carbon% 0.25 0.25
Sulphur% 0.055 0.040
Phosphorus% 0.055 0.035
S+P% 0.110 0.070
Mechanical PropertiesProperties Fe 500D
(IS 1786/2008)
Defendo QT(min.)
Yield Stress (Min.,N/mm2) 500 540
% Elongation 16 18
Ultimate Tensile Stress - UTS 565 600
UTS/YS Ratio 1.10 1.12
Steel that MAKES GRADE
Higher Sulphur content brings hot spot problem during the rolling
Higher Phosphorus content contributes to the increase in strength
and corrosion resistance properties but brings brittleness due to
the formation of low euctoid phosphicles in the grain boundary.
DistinguishingATTRIBUTES
Properties Generic TMT MainProducers
DEFENDO QT REBAR
Strength
Elongation
Weldability
Ductility & Fatigue Strength
Ribs
Savings
Price
Lower than CTD/TOR
High (GradeFe 500D is easily available)
High (GradeFe 500D is easily available)
HighNon - standard
Very weak Better & more strength
Non - standard
Manual & non-uniform
Corrosion Resistance
Very low
Very high steelconsumption due tounscientific methods
Very cheap due to low quality
High High
High High
Computerised & uniform
Computerised & uniform
No saving dueto higherprices
Very highprice for thesame Quality
High; 18 - 25% in all grades
Better & more strength
Upto 25% compared to Main Producers
Much lower than main producers for the same quality
So lower the level of these values better is the ductility of Rebar.
Ductility that
DEFENDS
Ductility is ability of a structure to undergo large deformations and
deflections when overloaded.
Unique process of heat treatment technology induces high strength in
DEFENDO QT rebars, yet retaining the modulus of plain carbon steel,
210 Gpa [29,000,000 psi] as shown in the stress-strain graph below.
Three internationally recognised Ductility Grades are:
Low (L), Normal (N) and Earthquake / Seismic (E) *
Defendo QT exhibits same properties as in Grade(E) rebars, which are
most suitable for Structure & Construction in seismic zones 3,4 & 5.
The measures for ductility are Uniform Elongation and the Tensile
Strength/ Yield Stress Ratio.
UTS or Ultimate Tensile Strength is defined as the ultimate stress a
material can withstand. This defines the ductility for the material.
Our high grade rebars provide a higher UTS/YS ratio making to the
factor that it helps in saving steel. Studies prove a higher tensile
strength in rebars result in less consumption of steel, which means
more saving .
Reduction of mass of reinforcement result to added savings.
SAVING STEELWAS NEVER SO EASY
DEFENDO QT, corresponds to BIS 1786:2008 and ensures a reduction of upto 25% in steel usage, while delivering the same strength.
Defendo QT is most suitable for seismic zone 3,4 & 5 because uniform elongation of more than 18%.
Deep Ribs leading to strong hold on concrete concluding less
wastage.
Less Binding & Cutting resulting low cost on rebars.
Less time required for execution of a project.
NOW SAVE STEEL
UPTO 25%High
UTS/YSRatio
With
* (as per New Zealand and Australia standard code AS/NZS 4671:2001)
Stress
proportionality limit
elastic limit
yield stress
ultimate stress
fracture
elasticbehaviour Strain
eplastic behavior
Elongation at Max. Force
Total Elongation
u
f
y
pl
u Ultimate stress
f Fracture stress
y Yield stress
pl Proportionality limit
NOMINAL DIAMETER(mm)
NOMINAL WEIGHT (KG/meter) as perIS 1786/2008
NOMINAL RANGE (KG/meter) as perIS 1786/2008
DEFENDO QTREBAR(Kg/meter)
piecesperbundle
8
10
12
16
20
25
28
32
20
15
10
5
3
1
1
1
0.395
0.617
0.888
1.578
2.466
3.853
4.834
6.313
0.367-0.423
0.574-0.660
0.844-0.932
1.499-1.657
2.392-2.540
3.737-3.969
4.689-4.979
6.123-6.502
0.387-0.399
0.605-0.623
0.870-0.897
1.546-1.594
2.417-2.491
3.776-3.891
4.737-4.882
6.187-6.376
The ISO 9001-2008 quality certification process applies to all aspects of production and ensure that we deliver what we promise, when we promise, every time! Our high standards insure that our products and services are the highest quality for our customers. This enables us to earn a reputable name in the steel industry.
QualitySTANDARDS
Each bundle weighs from 100 kg upto 2 metric tons.
Lengths ranging from 6 meters upto 18 meters.
Ends tied up with High Tensile Wires for maximum safety, lifting and
transportation.
With each bundle weighs upto 100kgs.
Lengths ranging from 12 meters upto 24 meters.
Ends tied up with High Tensile Wires for maximum safety, lifting and
transportation.
Our rebar comes in fixed length of ‘12 mtrs’ for standardisation
which causes very less wastage during fabrication.
U-Shaped Folded Bundles
Test Certificate
Unfolded / Straight Bundles
We use C-15 & C-20 Billets as the primary raw materials. All the
products are IS approved and produced under the excellent quality
super vision system of highest standards.
This is followed by stringent quality testing in our own laboratory,
which is equipped with SPECTRO analyzer (for chemical testing) and
100 tone UTM (for physical testing).
Our overall stringent process makes sure that we produce products
complying with the national and international quality standards.
Our every consignment
is accompanied by a
test certificate, which
assures that every
product that is being
dispatched from our
factories is thoroughly
checked & inspected
for optimized quality.
BUNDLE PACKING
Delivering at
EASE
Fe 500D
CREDENTIALSCorporate
DOSSIER
Premier group is a well diversified group with an overall experience of
30 yrs in steel business especially long products, and together all its
5 units are producing 1 million ton of finished steel annually.
Our these new generation high strength reinforcing QT rebars are
produced in the state-of-art, high-speed rolling mill, which is
technically one of the best of its kind in northern India.
The consistent product quality achieved by Premier group is highly
regarded by its customers. Such recognition is the result of years of
experience and a policy of continuous improvement, combined with a
Quality Management System developed according to ISO 9001:2008
THE FUTURE
Continued investment is at the heart of Premier group as it plans for
ongoing improvement in its steel products. We are committed to
invest in only the best new technology, processes & people. This
growth strategy will enable Premier group to increase its capacity in
line with its own ambitious targets as demand continues to rise.
Our products are approved in almost all government and private
organizations across the country. Consistent patronage and faith
shown by our clients is a single most achievement which we nourish.
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we deliver what we promise.. .