Optimization of Tribological Properties of Nonasbestos Brake Pad Material by Using Steel Wool

Table 1

Steel wool chemical composition and properties.

S. no.	Description	Unit	Grade GMT-180
1	Chemical Composition	%
	Carbon	%	0.08–0.13
	Manganese	%	0.81–0.96
	Silicon	%	0.04 Max
	Phosphorus	%	0.05–0.08
	Sulphur	%	0.03 Max
2	Raw materials wire diameter	mm	2.81–2.92
3	Tensile strength	Kg/mm^2	90–130
4	Acetone extraction	%	0.15 Max
5	Apparent density	Gm/cc	0.83–1.15
6	Specific gravity at RT	—	7.5–7.95