Products – Bhagwati Group

Grade Fe 500, Grade Fe 500 D

Properties	BIS Fe 500	Bhagwati 500	BIS Fe 500 D	Bhagwati 500 D*
Yield Strength, N/mm2, min	500	530-570	500	530-570
Tensile Strength, N/mm2, min	545	600-660	565	610-670
Stress Ratio (UTS/YS), min	1.08	1.14-1.22	1.10	1.15-1.23
Elongation, % min	12	18-22	16	18-23

Grade Fe 550, Grade Fe 500 D

Properties	BIS Fe 500	Bhagwati 550*	BIS Fe 500 D	Bhagwati 500 D*
Yield Strength, N/mm2, min	550	560-590	550	570-600
Tensile Strength, N/mm2, min	585	630-660	600	630-670
Stress Ratio (UTS/YS), min	1.06	1.12-1.18	1.08	1.10-1.18
Elongation, % min	10	14-18	14.5	16-20

Fe 415S, Fe 500S & Fe 600 are also available with us regularly

Nominal Size & Section Weight

Nominal Size (mm)	Nominal Section Wt. (Kg /M)	Section Weight (Range) Kg/M
8	0.395	(0.367- 0.423)
10	0.617	(0.574- 0.660)
12	0.889	(0.845- 0.933)
16	1.580	(1.501- 1.659)
20	2.469	(2.395- 2.543)
25	3.858	(3.742- 3.974)
28	4.840	(4.695- 4.985)
32	6.321	(6.131- 6.511)

* Other sizes can be provided by mutual agreement

We have well equipped NABL approved laboratory with SPECTROMETER for chemical testing & UTM of 100 and 120 tons capacity for Physical testing

CHEMICAL COMPOSITION

As per IS 1786: 2008. However we maintain Carbon equivalent value to maximum 0.45%.
Carbon equivalent is determined by the following formula : Cequiv = C + Mn/6 + (Cr + Mo + V)/ 5 + (Ni + Cu)! 15

Properties	BIS Fe 500	Bhagwati 500	BIS Fe 500 D	Bhagwati 500 D	BIS FE 550 D	Bhagwati 550 D
Carbon (Max)	0.30	0.018-0.27	0.25	0.25-0.25	0.25	0.22-0.25
% Manganese		0.40-0.50		0.50-0.80		0.50-0.80
Sulphur (Max)	0.055	0.035-0.050	0.040	0.030	0.040	0.030
Phosphorus (Max)	0.055	0.035-0.050	0.040	0.030		0.030

Test	BIS Fe 500	Bhagwati 500	BIS Fe 500 D	Bhagwati 500 D	BIS FE 550 D	Bhagwati 550 D
Bend
Upto 20 mm	4D	3D	3D	2D	4D	3D
Over 20 mm	5D	4D	4D	3D	5D	4D
Rebend
Upto 20 mm	5D	5D	4D	3D	6D	5D
Upto 20 mm	7D	7D	6D	5D	7D	6D

WELDABILITY

Bhagwati bars are produced with C less than 0.25% and are suitable for all the main welding processes without any special precautions. No pre-heating or post-heating is necessary. No loss of strength at weld – joints.

STRAIN AGEING

Ageing resistant due to the manufacturing process and chemical composition.

FATIGUE

Approved internationally for dynamically
stressed structural sections.

PROPERTIES AT HIGH TEMPERATURES

Bhagwati bars, have a proven record resisting loss of strength or high temperatures as experienced during fires.

CORROSION RESISTANCE

More corrosion resistant than CTD bars. Cold working involved in CTD bars leads to surface stresses and consequent higher rate of corrosion – and, the protective scale layer falls off during twisting. The Tempcore and Thermex processes basically inhibits rate of scale formation and no cold working is involved.