Specification and hardness of forging ball

Nominal diameter	Diameteical Tolerance	Weight of single ball in average	Surface hardness	Impact toughness
(mm)	(mm)	(g)	(HRC)	(j/cm)
Φ20	+2 -1	32	50-65	≥12
Φ25	+2   -1	64	50-65	≥12
Φ30	+2   -1	110	50-65	≥12
Φ40	+2   -1	263	50-65	≥12
Φ50	+2   -1	513	50-65	≥12
Φ60	+3   -2	888	50-65	≥12
Φ70		1410
Φ80		2104
Φ90		2996
Φ100		4110
Φ110	+4 -2	5457	50-65
Φ120		7102
Φ130		9030
Φ140	+4   -3	11278	50-65
Φ150		13871

Fuxin jingzhan stellball manufacuturer Co,. Ltd

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