Products

Minar products are unique amongst all the TMT products made in india. The international grade Tempcore process allows us to provide the best quality within affordable price margins

MINAR TMT TEMPCORE Steel bars

Manufactured in Minar’s own factory using international standards. MINAR TMT TEMPCORE Steel bars stand out among all the different rebars made in India, TEMPCORE allows an affordable product, along with superior usability and quality across the board.

8mm | 10mm | 12mm | 16mm | 20mm | 25mm | 32mm

CHEMICAL COMPOSITION

ELEMENT	Unit	IS:1786 Fe500D	MINAR TMT TEMPCORE 500D
CARBON	%	0.250 max	0.230 max
CARBON EQUIVALENT (C+Mn/6)	%	0.420 max	0.390 max
SULPHUR	%	0.040 max	0.035 max
PHOSPHORUS	%	0.040 max	0.035 max
SULPHUR & PHOSPHORUS	%	0.075 max	0.065 max
MANGANESE	%	******	0.900 max
SILICON	%	******	0.300 max

MECHANICAL PROPERTIES OF MINAR TMT TEMPCORE

PROPERTY	Unit	IS:1786 Fe500D	MINAR TMT TEMPCORE 500D
YIELD STRENGTH (YS)	N/mm²	500 min	520 min
TENSILE STRENGTH (UTS)	N/mm²	565 min	585 min
UTS/YS	Ratio	1.10 min	1.12 min
ELONGATION	%	16 min	18 min

MASS/ METRE OF TMT BARS

IS 1786:2008 WEIGHT IN KG/M				MINAR TMT WEIGHT IN KG/M
Size(mm)	Min	Normal	Max	Min	Normal	Max
8	0.367	0.395	0.423	0.370	0.380	0.400
10	0.574	0.617	0.66	0.585	0.600	0.620
12	0.844	0.888	0.932	0.850	0.870	0.890
16	1.501	1.58	1.659	1.520	1.550	1.590
20	2.396	2.47	2.544	2.400	2.420	2.550
25	3.735	3.85	3.965	3.750	3.800	3.970

TEMPCORE

The Precise Craft Behind Minar TMT TEMPCORE Steel bars

MINAR TMT TEMPCORE Steel bars are thrice fortified by three layers that enable it to withstand any challenge of natural forces. The hard to nail and precise process, developed by CRM (Centre for Research in Metallurgy) Belgium represents the best of International processes used in manufacturing steel.

MINAR TMT TEMPCORE Steel bars are manufactured in Minar’s own factory, using a hard to nail and precise process developed by CRM (Centre de Recherches Métallurgiques, it has proved to be a huge leap in the technological innovations on TMT Steel bars. Recreating the TEMPCORE process has allowed the mass production of TMT bars, in one of the most productive methods, among all the different rebars made in India. The scientific precision and productivity of the process allows to create a product of international standards at an affordable price tag, along with superior usability and quality, across the board.

The TEMPCORE Precedence

A high yield and low consumption of iron for construction
Higher grades easily available Fe 500D
Availability of International grades

Reliable and Easy to Use

High weldability and ductility
High Yield strength with high elongation
Ease of use leading to less construction time
Ease of availability

Durable and Hazard Resistant

High thermal stability
Better Corrosion resistance
Better resistance to fatigue
Higher bond strength
Higher resistance to strain ageing
Most suited for seismic zones, which nearly 60% of India is high seismic hazard category, i.e Earthquake resistant

Behind the TEMPCORE Process

TEMPCORE is a quench and self-tempering process for the manufacturing of high quality concrete reinforced bars as known as rebars. The TEMPCORE Process has been developed in the early seventies by CRM Belgium, in order to manufacture high yield strength weldable concrete reinforcing bars from mild steel. It consists in subjecting the hot rolled steel to an in-line heat treatment in 3 successive stages:

Stage 1

As soon as it leaves the final mill stand, the product is rapidly and energetically cooled through a short cooling installation, where it undergoes surface hardening (Martensite Layer).

Stage 2

As soon as this quenching operation is stopped, the surface layer is Tampered by using the residual heat left in the CORE of the bar (Self tempering of the Martensite Layer); hence the name Tempcore.

Stage 3

The third stage takes place while the product lies on the cooling bed where the bar is subjected to normal cooling down to ambient temperature (transformation of the residual austenite in the core).