SRMB TMT Bar Online

SRMB TMT is India’s most advanced earthquake resistant steel. The Upgradation from SRMB 500+ SR X ribs to SRMB 500+ SR WINGRIP (seismic resistant) is a result of the adoption of new technology and extensive in house research and development which provides more strength with higher elongation and better bonding with concrete. SRMB TMT bar of SR quality is manufactured to demonstrate higher ductility through a special chemistry of the billets and critically controlled post rolling TMT treatment to enlarge the gap between the Yield Strength and the Ultimate Tensile Strength. A highly critical balance between the chemistry and the quenching parameters leads to the development of the desired properties in these bars. Carbon Equivalent (CE) is maintained at a lower level to ensure good weldability. These bars when used in construction in the quake prone zones passes superior capacity to absorb energy beyond yield limit and resist collapse of buildings.

International Quality Standards

SRMB TMT Bars confrms to various international standards, viz. IS:1786:2008 BIS Standard of India. This standards comparable with ASTM A615 Grade 60 of the USA, BST 500 of DIN 488 of Germany, BS 444 Grade 460 of Great Britain, among others.

Ductile and Super Ductile category (Earthquake Resistant) of SRMB TMT Bars: Fe 415D, Fe 500D, Fe- 500 S, Fe 550D

The "D" grade variety of TMT bars were introduced by BIS in their amendment in the year 2008 and “S” grade were introduced by BIS in their latest amendment in the year 2012 . This category of TMT Bars demonstrates higher tensile strength and ductility on and above normal grade TMT bars. D & S variety TMT bars are manufactured through special category of billets and critically controlled thermal treatment during manufacturing process. The best part of D & S variety TMT bars are these are the ideal product for earthquake resistance and totally free of mechanical fatigue.

Fe-415 D:

Features of Fe 415D grade TMT Bars are as follows:

MECHANICAL PROPERTIES

CHEMICAL PROPERTIES

0.2% Proof Stress / YS

(N/mm²) Min.

Tensile Strength

(N/mm2)Min

Elongation%

Min

C
(%)Max

S
(%)Max

P
(%)Max

S & P
(%)Max

415.0

500

18.0

0.25

0.045

0.045

0.085

Fe500D:

Features of Fe 500D grade TMT Bars are as follows:

MECHANICAL PROPERTIES

CHEMICAL PROPERTIES

0.2% Proof Stress / YS

(N/mm²) Min.

Tensile Strength

(N/mm2)Min

Elongation%

Min

C
(%)Max

S
(%)Max

P
(%)Max

S & P
(%)Max

500.0

565.0

16.0

0.25

0.040

0.040

0.075

Fe 550D Grades:

Features of Fe 550D grade TMT Bars are as follows:

MECHANICAL PROPERTIES

CHEMICAL PROPERTIES

0.2% Proof Stress / YS

(N/mm²) Min.

Tensile Strength

(N/mm2)Min

Elongation%

Min

C
(%)Max

S
(%)Max

P
(%)Max

S & P
(%)Max

550.0

600.0

14.5

0.25

0.040

0.040

0.075

Fe500S Grades:

Features of Fe 500S grade TMT Bars are as follows:

MECHANICAL PROPERTIES

CHEMICAL PROPERTIES

0.2% Proof Stress / YS

(N/mm²) Min.

Tensile Strength

(N/mm2)Min

Elongation%

Min

C
(%)Max

S
(%)Max

P
(%)Max

S & P
(%)Max

500.0

625.0

18.0

0.25

0.040

0.040

0.075

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