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TECHNICAL & MECHANICAL SPECIFICATION

TECHNICAL & MECHANICAL SPECIFICATION

 

Advanced technology to meet the market requirements and superior surface quality are some of the prominent features of Falcon Steel’s rebar.

Rebar Specification

 
 Characteris
tics		BS 4449:2005
Gr B500B		BS 4449:2005
Gr B500C		ASTM A615
Gr 60		ASTM A615
Gr 75		ASTM A615
Gr 80		E60 BARS
(YS>420MPa)		ISO 6935-2
:2007
B500B-R		SASO ASTM
A615:2015
Chemical Composition
Carbon (C) %0.22 Max0.22 Max———0.35-0.40 Max0.32 Max—
Phosphorous
(P) %		0.05 Max0.05 Max0.05 Max0.05 Max0.05 Max0.05 Max0.0600.05 Max
Sulphur (S) %0.05 Max0.05 Max0.05 Max0.05 Max0.05 Max0.055 Max0.0600.05 Max
Nitrogen (N) ppm120 Max120 Max120 Max120 Max120 Max100 Max120 Max120 Max
CE (%)0.48 Max0.48 Max——————
Mechanical &
Physical Properties
Yield Strength,
MPa (min)		500 – 650500 – 650420520550420500420
Tensile Strength,
MPa (min)		——620690725620—620
TS/YS (min)1.08>=1.15, <1.35———1:201.08—
Elongation (%), (min)——97710-12149
Agt (%) (min)57.5————5—
Bend Angle90°90°180°180°180°180°90°180°
Re-bend
Angle		From 90°
Back by
at least 20º		From 90°
Back by
at least 20º		————From 90º
Back by
at least 20º		—
Weldability
Weldable /
Non-Weldable		WeldableWeldableNon – WeldableNon – WeldableNon – WeldableNon – WeldableNon – WeldableNon – Weldable
Application
 RCC
Construction		RCC Construction in seismic zoneRCC
Construction		RCC
Construction		High Raise TowersProtected Houses From Seismic ConditionsRCC
Construction		RCC
Construction
Note: Bend and Rebend tests are performed as specified in respective standards using proper mandrel diameters
Technical Features
  • BS4449:2005 GrB500B rebars are produced with low carbon equivalent & Weldable, whereas ASTM A615 Gr60, Gr75, Gr80, ISO 6935-2:2007 B500B-R and SASO ASTM A615:2015 are Non-Weldable
  • BS4449:2005 GrB500B rebars have High Strength Compared to ASTM A615 Gr60 which reduce steel consumption & congestion in structure, in turn reduces overall cost of project
  • Falcon Steel E60 Bars
 
 
  • BS4449:2005 GrB500B rebars have High Yield Strength i.e., minimum 500 Mpa compared to ASTM A615 Gr60, without compromising on ductility
 
 
 
 
  • BS4449:2005 GrB500B rebars have better bend performance, due to severe bend & re-bend angle. Rebars confirming to BS 4449:2005 specification are subjected to fatigue testing and survive minimum 5 million stress cycles.
 
 
  • FS E60 Bars are with yield strength > 420 MPa 73000 psi with a controlled Tensile Strength Maintaining a ratio of 1:20. Over the years, rebar with yield strength 420 MPa, 73000 Psi are being produced but as the Tensile strength increase, ductility, Elasticity and Elongation is compromised. In such steel all these parameters are controlled and not compromised to get the best protection.  Rebar with higher strength and flexibility keeps the house more safe in any seismic conditions.
  • Falcon Steel E60 is designed considering environmental changes and hence made it corrosion resistant, So E60 is when poured in concrete, it remains rust free for many decades.

Nominal Dimensions, Weight & Tolerance On Knots

DesignationNominal Dia. (d)
(mm)		Nominal Cross Section Area
(mm2)		Unit Mass
(kg/m)		Maximum of Average Knot Space
(mm)		Height of KnotLtgd/Ri Width
(mm)		Nominal Mass
kg/piece
Min
(mm)		Max
(mm)		6m9m12m
D1212113.10.8888.40.51.04.75.337.9910.66
D1616201.11.5811.20.71.46.39.4814.2218.96
D1818254.52.0012.60.81.67.112.0018.0024.00
D2020314.22.4714.01.02.07.914.8222.2329.64
D2222380.12.9815.41.12.28.617.8826.8235.76
D2525490.93.8517.51.32.69.823.1034.6546.20
D2828615.84.8319.61.42.811.028.9843.4757.96
D3030706.95.5521.01.53.011.833.3049.9566.60
D3232804.26.3122.41.63.212.637.8656.7975.72
Requirement for rib geometry
Height of transverse ribs 0.03d to 0.15d
Rib spacing, c 0.4d to 1.2d
Rib inclination, ß 35° to 75°		The projection of transverse ribs shall extend over at least 75% of circumference of the product which shall be calculated from the nominal diameters.
Longitudinal rib:
Where longitudinal rib are present, there height shall not exceed 0.10d, where d is the nominal diameter of the product.

 

Rebar Marking

Deformed bars produced at Falcon Steel Mills conform to various national and international standards such as, BS 4449:2005 ASTM A615:2020, ASTM A615 Grade 60/Grade 75/Grade 80 (American) & FS E60 BARS (Falcon Steel Earthquake rebar).

The registered trade mark ‘FALCON STEEL MILLS’ is rolled on every deformed rebars at an interval of about one meter long with all identification marks.