DSP : Bars, Rods & Rebars

Rationalised sizes of Bars, Rods & Rebars

Plain Rounds		SAIL TMT/ SAIL TMT HCR/ TOR Bars			Mill
Size mm	Weight kg/m	Size mm	Weight kg/m	Length m
		16	1.58	5.5 to 13 for all sizes	DMM
18	2.00	18	2.00		DMM
20	2.47	20	2.47		DMM
22	2.98	22	2.99		DMM
25	3.85	25	3.86		DMM
28	4.83	28	4.83		DMM

Abbreviation used
DMM	Durgapur Merchant Mill

Common Grades: IS 2062/ 1999, IS 1786/ 1985, SAIL TMT and SAIL TMT HCR. Also available in the following foreign specifications: ASTM-A 615 Grade 40 (for TMT wire rods) and ASTM-A 615 Grade 40/ Grade 60 (for TMT Bars), if sufficient orders are available.

For Specifications click here

Tolerance as per IS 1786 or equivalent.
Packaging: Signode strapping in bundles of 5 tonnes.
Rounds are available in straight lengths. Plain Rounds/ TMT bars/ TMT-HCR rebars in sizes 8 and 10 mm are available in coils. The other sizes of Plain Rounds/ TMT bars/ TMT-HCR rebars are available in straight lengths.

High Temperature Strength
SAIL TMT-HCR reinforcement bars exhibit higher thermal resistance even at temperatures up to 600 ⁰ C. The retention of significant strength or, in other words, resistance to softening, is attributed to design of steel chemistry, presence of tempered martensite layer on the rebar surface and absence of any cold worked structural zone. Thus the thermally hardened SAIL TMT-HCR rebars are ideal for use in places prone to fire hazards.

Applications

Specification	Application	Special Qualities
SAIL TMT	General concrete reinforcements in high rise buildings, bridges and other concrete structures	Excellent bendability, good weldability and high fatigue resistance on dynamic loading
SAIL TMT HCR	Construction exposed to coastal, marine or underground environment	In addition to above this has high corrosion resistance properties

Savings in Steel* when using SAIL TMT or SAIL TMT-HCR

Grade	Fe 415	Fe 500	Fe 550
Saving in steel compared to IS-2062 plain bar	40%	44%	47%
Saving in steel compared to IS-1786/ Fe 415 CTD		14%	19%

* In case of doubly reinforced beams using M15 and M20 grades of cement.