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

Table 2

Mechanical properties of the test steel.

Mechanical properties	Yield strength	Tensile strength	Elongation rate	−20°C impact toughness	Hardness
	(MPa)	(MPa)	(%)	(J)	(HB)
Martensitic steel	1570	1701	13.23	24	490