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*   TMT/QST BARS

POLAAD 500 QST Bars
 
Manufactured by Purest Steel, Coupled with world reknowned technology of Thermex, every POLAAD 500 QST Bar confirms to World class quality standards set by our qualified team of metallurgists and engineers. POLAAD 500 QST is a registered trademark of BRM. POLAAD 500 QST Bars are available for residential, commercial, industrial and project applications.
 
 
 

Construction Bars (TMT/QST)
 
Grades
:
Fe 415, Fe 500, Fe 500 D, Fe550, Fe550 D
Sizes
:
8 mm to 40 mm
Application
:
Construction of Residential, Commercial and Industrial Buildings, Complexes, Auditoriums, Bridges, Flyovers, Roads, and any type of Infrastructure projects.

Billets:
 
 
Mild Steel, Carbon Steel and low alloy steel.
Apart from M.S., we also produce special steels like - C 14, C 20, C 30, C 40, C 45, C 55Mn 75 etc.
 
 
Sizes
:
100*100, 110*110, 160*160 Sq. mm
 
 
Application
:
For making Structure and TMT bars, forged components, Automobile parts
 
 

 
QST Bar Specifications
 
 
 

 
Indian Standard
POLAAD
   
Fe 415
Fe 500
Fe 550
POLAAD 500
POLAAD 550
Carbon, Max
0.3
0.3
0.3
0.23
0.23
Sulphur, Max
0.06
0.055
0.055
0.040
0.040
Phosphorus, Max
0.06
0.055
0.050
0.055
0.050
S + P, Max
0.11
0.105
0.100
0.095
0.090

 

 
Indian Standard
POLAAD
 
Fe 415
Fe 500
Fe 550
POLAAD 500
POLAAD 550
Yield Strength, Min (N/mm2)
415
500
550
530
580
Ultimate tensile Strength, Min (N/mm2)
485
545
585
610
640
Elongation, Min (A5) (%)
14.5
12
10
16-21
16-20

 

BEND PROPERTIES
NOMINAL SIZE mm MANDRAL DIAMETER FOR DIFFERENT GRADES (IS 1786: 1985)
 
Indian Standard
POLAAD Specifications
 
Fe 415
Fe 500
Fe 550
 
POLAAD 500
POLAAD 550
Up to and including 20
3d
4d
5d
 
3d
3d
Over 20
4d
5d
6d
 
 
 
d is the normal size in mm of the test price.

 

REBEND PROPERTIES
NOMINAL SIZE mm MANDRAL DIAMETER FOR DIFFERENT GRADES (IS 1786: 1985)
 
Indian Standard
POLAAD Specifications
 
Fe 415
Fe 500
Fe 550
 
POLAAD 500
POLAAD 550
Up to and including 10
5d
5d
5d
 
5d
5d
Over 10
7d
7d
7d
 
 
 

 

WEIGHT TOLERANCE
 
Size Of Bar
Cross-Sectional
IS 1786
POLAAD
 
(mm2)
Area (mm2)
Lower
Standard
Upper
 
 
 
 
8
50.3
0.367
0.395
0.423
0.375
-
0.415
 
10
78.6
0.574
0.617
0.660
0.586
-
0.648
 
12
113.1
0.844
0.888
0.932
0.857
-
0.919
 
16
201.2
1.501
1.580
1.659
1.525
-
1.635
 
20
314.3
2.396
2.470
2.544
2.421
-
2.519
 
25
491.1
3.735
3.850
3.966
3.773
-
3.927
 
28
616.0
4.685
4.830
4.975
4.733
-
4.927
 
32
804.6
6.121
6.310
6.499
6.184
-
6.436
 
 
 
QST Bar Properties
 

 
 

 

 
 

 

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