Quality - Performance
TOPSTEEL has documented procedures for inspection and testing of all incoming raw-material and finished products in its in-house metallurgical, chemical and physical test laboratories equipped with sophisticated inspection equipment like Universal Testing Machine, Spectrometer, Microscope and other advanced facilities manned by a continuous team of qualified and experienced professionals. R & D is encouraged and has resulted in product and process quality improvements.
Top TMT Physical Properties
Physical Properties IS: 1786 Fe 415 IS 1786/85 FE 500
  TOP + 415 TOP + 500
Yield Strength 415 500
Tensile Strength 485 545
% Elongation (Min) 14.5 12.0
UTS/Y.S (min) 1.10 1.08
Application General/E.Q.Z General/E.Q.Z
Performance Characteristics BS 4449 GR.460 BS 4449 / 2005
  TOP + 460 B TOP + 500 B TOP + 500 C
       Fe 500B Fe500C
Yield Strength 460  500 500
Tensile Strength 506  540 575
% Elongation (Min) 12  12 12
UTS/Y.S (min)      - 1.15
Application General/E.Q.Z General/E.Q.Z General/E.Q.Z
Physical Properties ASTM A615M GR. 75(520)
      TOP + 520
Yield Strength 520
Tensile Strength 690
% Elongation (Min) 12
UTS/Y.S (min) 1.10
 Application  General/E.Q.Z
Top TMT Specifications
TOP+ TM
Sl.No. Description  
1 Carbon (% max) 0.28
2 Sulphur & Phosphorous (% max) 0.06
3 S+P (%max) 0.11
4 Mn (% max) 0.70
5 CE (% max) 0.40
Top TMT Chemical Properties
Rib Bar / Deformed Bar
TOP+ TMT / Sizes & Weight Per Meter
Sl. No. Nominal Size in mm Weight in Kg Weight/Mtrs Tolerance
      Tol ± Range
1 8 0.395 6.50% 0.369325 - 0.42068
2 10 0.617 6.50% 0.576895 - 0.65711
3 12 0.888 4.50% 0.848040 - 0.92796
4 16 1.580 4.50% 1.508900 - 1.65110
5 20 2.470 4.50% 2.358850 - 2.58115
6 25 3.850 4.50% 3.676750 - 4.02325
7 28 4.830 4.50% 4.612650 - 5.04735
8 32 6.310 4.50% 6.026050 - 6.59395
9 36 7.990 4.50% 7.630450 - 8.34955
10 40 9.850 4.50% 9.406750 - 10.29325
Square Bar
Sl. No. Nominal Size in mm Weight in Kg Weight/Mtrs Tolerance
      Tol ± Range
1 8 0.500 6.50% 0.46750 - 0.53250
2 10 0.730 6.50% 0.68255 - 0.77745
3 12 1.130 4.50% 1.07915 - 1.18085
4 16 2.010 4.50% 1.91955 - 2.10045
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