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Product
RAK
Steel rebars are hot rolled in a new highly automatic rolling mill and
subjected to online Thermo mechanical treatment called Quenching and
Self Tempering (QST).
Features
›Ribs: RAK
Steel rebars' ribs are superior in design and quality. They have better bonding with
concrete because they have uniform, deeper grooves made on CNC
machines.
›Bendabilty:
The tough outer surface and the soft core makes the rebar bendable and ideal
for:
- cut and bend
operations and on site work.
- Improves
productivity and reduces wastage
- Resists loss of
strength during high middle east temperatures
›Weldability:
low carbon content RAK steel rebar makes it easy to weld.
›Corrosion
resistant: there is no torsion residual stress in RAK Steel rebars as it is
made by QST(Quenching and Self Tempering) process. Its microstructure makes it
corrosion resistant even when imbedded in concrete.
›Earthquake
resistant: RAK steel strength and ductility exceeds the minimum level specified
by BS 4449:2005 making it deal for foundations of high rise buildings.
Product
specifications:
BS
4449: 2005 Grade B500B*:
The
BS 4449:2005 British Standard specifies requirements for ribbed wieldable
reinforcing steel used for the reinforcement of concrete structures. The
standard covers steel delivered in the form of bars, coils and decoiled
products. The standard contains provisions
for three steel grades, all of 500MPa characteristic yield strength but with
different ductility characteristics. The three grades are B500A, B500B and
B500C.
The
weldability requirements for all grades of all steel are specified in terms of
the chemical composition and in particular the carbon equivalent value.
ASTM A-615 Grade 60*:
The
ASTM A-615 specification covers deformed and plain carbon-steel bars for
concrete reinforcement in cut lengths and coils. Materials considered under
this specification are available in Grades 40 [280], 60 [420], and 75 [520]. Bars
are of three minimum yield strength levels: namely, 40 000 [280 MPa], 60 000
[420 MPa], and 75 000 psi [520 MPa], designated as Grade 40 [280], Grade 60
[420], and Grade 75 [520], respectively.
*copyrights
of BS and ASTM standards' descriptions given above belong to "British
Standards Institution" and "American Society for Testing and Materials"
respectively.
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