Table 1.

Weight percentage of various elements at the spots.

Weight %	Fe	Cr	Ni	O	C	Mn	Si	Ti	Ca	P	S	Na
Spot 1	67.52	17.45	7.61	3.27	1.4	1.17	1.01	0.51	0.04	0	0	0
Spot 2	54.6	14.91	6.35	9.09	8.45	1.16	0.42	4.06	0.28	0.4	0.27	0
Spot 3	40.05	12.88	7.08	16.67	9.63	0.54	1.37	9.84	0.57	0.86	0.39	0
Spot 4	30.09	10.71	5.09	24.32	11.46	0	1.66	12.93	0.44	1.75	0.56	0.48