Screening the Main Factors Affecting the Wear of the Scraper Conveyor Chute Using the Plackett–Burman Method

Table 1

Chemical composition of the test steel (wt%).

Elements	C	Mn	Si	Cr	Mo	S	P
Martensitic steel	0.25	1.22	0.39	0.9	0.6	⩽0.010	⩽0.020