1. BY S BISWAS CEO S.K.SAMANTA & Co (P) Ltd. KOLKATA
TALK ON “QUALITY MANAGEMENT IN CONSTRUCTION & INFRASTRUCTURE PROJECTS THE WAY FORWARD” BY
S BISWAS
CEO
S.K.SAMANTA & Co (P) Ltd.
KOLKATA

2. NATIONAL STEEL POLICY
INDIA IS THE 3RD LARGEST PRODUCER OF STEEL & IS LIKELY TO BECOME NO.-2 IN THE WORLD.
PER CAPITA STEEL CONSUMPTION IS 61KG IN INDIA AS COMPARED TO WORLD AVERAGE OF 208KG
INDIAN STEEL INDUSTRY IS CONTRIBUTING APPROX 2% OF THE COUNTRY’S GDP & EMPLOY ABOUT 5LAKH PEOPLE DIRECTLY & ABOUT 20LAKH PEOPLE INDIRECTLY.
THE DEMAND OF STEEL SHALL REACH 230MT BY 2030 – 2031.

3. Top 10 steel-producing countries
Rank
Country
2017 (Mt)
2016 (Mt)
%2017/2016 1
China
831.7
786.9
5.7 2
Japan
104.7
104.8
-0.1 3
India
101.4
95.5
6.2 4
United States
81.6
78.5 5
Russia (e)
71.3
70.5
1.3 6
South Korea
71.1
68.6
3.7 7
Germany (e)
43.6
42.1
3.5 8
Turkey
37.5
33.2
13.1 9
Brazil
34.4
31.3
9.9 10
Italy 24
23.4
2.9

4. Classification of Steel
Carbon Steel
Alloy Steel
Low Carbon
Medium Carbon Steel
High Carbon
High Alloy
Medium Alloy
Low Alloy
Crude Steel
Finished Steel
Ingots
Semis
Alloy
Non-Alloy
Non Flat Products
Flat Products
Non Flat / Longs
Flat
Round, Bars , Wire Rods, Structural–Light, Med, Heavy
Plates, HR Coil / Strips ,CR, CF , Tinplate , GP / GC / Elect Sheet

5. Steel Products Selection
Paradox
Concrete = Cement + Steel
Cement : 100% BIS Marked
Steel ??????
Cement
Few manufacturers
Standard Equipments
Good process control
Steel
Many Manufacturers
Many Makeshift units
Process & QA not adequate

6. ( Difficult to choose right Rebars)
Reinforcement Bars
( Difficult to choose right Rebars)
Cold Twisted Deformed
Fe 415
Thermo Mechanically Treated
Fe 415 / 500/ 550/600
Corrosion Resistant TMT
Fe 415 / 500
Seismic Resistant TMT
Fe 415S / 500S
Coated TMT
Zn, Epoxy
TO REDUCE PROBABILITY OF BUILDING COLLAPSES : DUCTILITY OF STRUCTURES IS MOST CRITICAL FACTOR

7. STEEL & STEEL PRODUCTS (QUALITY) ORDER, 2018
EVERY STEEL & STEEL PRODUCTS SHALL CONFORM TO THE CORRESPONDING INDIAN STANDARD SPECIFIED IN THIS ORDER.
FOR REINFORCEMENT BARS THE FOLLOWING TWO STANDARDS ARE APPLICABLE
IS2830:2012
CARBON STEEL CAST BILLET INGOTS, BILLETS, BLOOMS, SLABS FOR
RE-ROLLING.
IS1786:2008 (AMENDMENT-NOV2012)
HIGH STRENGTH DEEFORMED STEEL BARS & WIRES FOR CONCRETE
REINFORCEMENT.
EVERY STEEL & STEEL PRODUCT SHALL BEAR THE STANDARD MARK UNDER LICENSE ISSUED BY BIS (VOILATION ATTRACTS PENAL ACTION)

8. PROPERTIES OF TMT GRADE BAR
Fe415 Fe415D Fe415S Fe500 Fe500D Fe500S Fe550 Fe550D Fe600 Fe650 Fe700
Carbon
Sulphur
Phosphorus
Sulphur &
Phosphorous

9. Quality Issues of Rebars
Like TMT
Revealed 46% not meeting quality requirement
Main reasons : High S,P,S+P & low YS