Material: 20Cr, 20CrMnTi, 16MnCr5 

Process: The overall carburizing and quenching process is adopted.

The surface hardness of the product (Rockwell hardness, HRC) is 58-60, and the effective wear-resistant layer is 1.2mm. 

Applicable range 

Straight-six cylinder, 9.3L, 16 valves (later 18 valves) heavy-duty diesel engine, widely used in 336D/340D excavators, graders, industrial / marine machinery