GK TMT (thermos-mechanically-treated) rebars (reinforcing bar) are used as a tension device in reinforced concrete and reinforced masonry structures to strengthen and aid the concrete under tension. Our high quality physical and mechanical specifications help to significantly increase the tensile strength of the structure. Our hot rolled round bars with deformation at its surface promotes a strong bond with the concrete.

GK TMT is manufactured using our integrated manufacturing process starting from ironmaking. High grade iron ore and pellets are processed into high quality sponge iron in our facilities which is then converted into crude steel in our steel melting shop.

500D is our flagship offering in the pool of available options and sizes. We are able to provide best-quality tmt rebars by controlling all the parameters in the manufacturing process, lab testing, and by implementing quality control mechanisms. Less steel is required during construction due to the high quality of the product which provides cost-saving, hence making GK TMT an economically priced product.

Why GK TMT Rebars
Superior Chemical Properties
– carbon, sulphur and phosphorus
SuperiorTensile Strength
Superior UTS/YS ratio
Superior Elongation
Economical Product
Features & Benefits
  • Earthquake, Heat and Rust resistant
  • Bending – Re-bending feature
  • Weldability and Ductility
  • Unbeatable Strength
  • Unique Rib Design
Video Brochure
Clients
Government Approval
Military Engineering Services
Indian Railways
National Highway (NHAI)
RITES
Joint Plant Committee (Steel Ministry)
Delhi Metro Rail Corporation
Nagpur Metro Rail Corporation
New Delhi Municipal Corporation
BHEL
Corporate-clients
Dilip Buildcon
TAL - A TATA Enterprise
Larsen & Toubro
Essar
Sadhbhav
Shapoorji Pallonji
Simplex Infrastructres
Oriental Structure Engineers
Montecarlo
Specifications
  • Chemical & Mechanical Composition (1786 : 2008)
  • BIS Tolerance & Saving with GK TMT
  • Cost Saving Chart

Chemical & Mechanical Composition (1786 : 2008)

Element Indian Standard (IS 1786) GK TMT
  415 500 500D 415 500 500D
Carbon, Max 0.30 0.30 0.25 0.30 0.30 0.25
Sulphur, Max 0.60 0.055 0.040 0.055 0.050 0.04
Phosphorus, Max 0.60 0.055 0.040 0.055 0.050 0.04
S+P, Max 0.110 0.105 0.075 0.105 0.095 0.07
Yild Strength(N/mm2) 415 500 500 450 530 530
Ultimate Tensile 485 545 565 530 565 585
Elongation, Min(%) 14.5 12 16 16 16 18

BIS Tolerance & Saving with GK TMT

Nominal Size*(mm) Nominal Section Wt.(Kg/M) Section Weight.(Range) (Kg/M) GK TMT avg. WT Total No. of bars per bundle
6 0.222 (0.206-0.238) 0.210-0.225 30
8 0.395 (0.367-0.423) 0.370-0.400 20
10 0.617 (0.574-0.660) 0.580-0.620 15
12 0.888 (0.844-0.932) 0.850-0.890 10
16 1.580 (1.501-1.659) 1.550-1.590 05
20 2.470 (2.396-2.544) 2.430-2.480 03
25 3.850 (3.734-3.966) 3.800-3.860 01
28 4.830 (4.685-4.975) 4.750-4.840 01
32 6.310 (6.121-6.499) 6.250-6.320 01
*Available in 12 meter & special length

Cost Saving Chart

Work Size Concrete TMT Grade GK TMT fe 500 needed (kg) Saving Per Quintal (kg) Saving in %
(A) Roof

100 sq.ft

(4" thick)

01:05.5

-

52

-

42

-

10

(per 100 sq.ft)

19

-

(B) Beam

300 X 700

-

M-25

M-30

104

137

86

115

18

22

17

16

(C) Column

300 X 900

230 X 600

M-25

M-25

69

58

58

44

11

14

16

24

Raw Materials
(Coal & Iron ore)
DRI plant
Sponge iron
Steel melting shop
LRF
Manufacturing Process
Billets
Direct Hot Charging
Rolling mill
TMT rebars & wire rods
Wire Drawing Unit
HB Wire
Binding Wire
GI Wire