Tmt Bar

SPECIFICATION OF TMT BARS WEIGHTS (Kg/Mtr)
SIZE	IS-1786:2008			Simhadri TMT
SIZE	Std	Min	Max	Min	Max
8mm	0.395	0.367	0.423	0.387	0.399
10mm	0.617	0.574	0.660	0.605	0.623
12mm	0.888	0.844	0.932	0.870	0.897
16mm	1.578	1.499	1.657	1.546	1.594
20mm	2.466	2.392	2.540	2.417	2.491
25mm	3.854	3.738	3.970	3.777	3.893
28mm	4.835	4.690	4.980	4.738	4.883
32mm	6.316	6.127	6.505	6.190	6.379

MECHANICAL PROPERTIES

SPECIFICATION OF TMT BARS CHEMICAL PROPERTIES (%)
Parameter	IS-1786:2008			Simhadri TMT
Parameter	Fe-415	Fe-500	Fe-500D	Fe-415	Fe-500	Fe-500D	HSCRM
Yield Stress(N/mm2)	415	500	500	430-490	520-560	520-560	520-580
Ultimate Tensile Strength (N/mm2)	485	545	565	500-560	600-680	600-680	600-690
Elongation(%)	14.5	12	16	20-25	18-24	18-24	18-24
Total Elongation @ Max Force(%)	–	–	5	–	–	8-10	8-10
Ration (UTS/YS)	1.16	1.09	1.13	1.15-1.25	1.13-1.22	1.14-1.25	1.18-1.25

SPECIFICATION OF TMT BARS CHEMICAL COMPOSITION (%)
Parameter	IS-1786:2008			Simhadri TMT
Parameter	Fe-415	Fe-500	Fe-500D	Fe-415	Fe-500	Fe-500D	HSCRM
Carbon (C)	0.3	0.3	0.25	0.18 – 0.25	0.18 – 0.23	0.16 – 0.22	0.18 – 0.22
Sulphur (S)	0.060	0.055	0.040	0.035-0.055	0.025-0.050	0.020-0.035	0.025-0.045
Phosphorus (P)	0.060	0.055	0.040	0.035-0.055	0.035-0.050	0.025-0.035	0.035-0.050
Sulphur + Phosphorus(S+P)	0.110	0.105	0.075	0.070-0.11	0.060-0.100	0.045-0.070	0.060-0.095
Carbon Equivalent (CE)	0.42	0.42	0.42	0.26-0.37	0.26-0.35	0.26-0.32	0.30-0.45
Chromium(Cr)							0.40-0.65
Copper(Cu)							0.20-0.30
Corrosion Resistance Element(P+Cr+Cu)							0.75