Specialication 

 

Cast Steel Balls	Cr %	C %	Mn %	Si %	P %	S %
Low Chrome	1%	2.2-2.5	0.3-1.0	0.3-1.0	≤0.1	≤0.1
High Chrome	10%	1.8-3.2	0.5-1.5	0.3-1.2	≤0.05	≤0.05
High Chrome +	17%	1.8-3.2	0.5-1.5	0.3-1.2	≤0.05	≤0.05
Quenching Oil	10%-17%	1.8-3.2	0.5-1.5	0.3-1.2	≤0.05	≤0.05

 

Cast Steel Balls	Cr %	Hardness	Ak(J/CM2)	Microstructure	Times of Falling
Low Chrome	1%	42-45HRC	≥1.6	P+C	≥10000
High Chrome	10%	50-55HRC	≥2.5	M+C+A	≥15000
High Chrome +	17%	50-55HRC	≥2.5	M+C+A	≥15000
Quenching Oil	10%-17%	58-65HRC	≥3.0	M+C+A	≥20000