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Steel balls

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Materials Symbolic
designation		 Numeric
designation		 Chemical
analysis (%)		 Hardness Density
kg/dm³		 Properties
C Si Mn P S Cr
Chrome steel
AISI 52100		 100Cr6 1.3505 0.95
to
1.05		 0.15
to
0.35		 0.25
to
0.45		 0.030
max		 0.025
max		 1.35
to
1.65		 60
to
66 HRC		 7.83 Bearing steel through hardened, fine surface finish, high hardness and load capacity
Through hardened
Carbon steel (with
chrome) C65Cr2		 0.65
to
0.70		 0.15
to
0.35		 0.70
to
80		 0.025
max		 0.025
max		 0.35
to
0.45		 60
to
66HRC		 7.85 Through hardened, used in applications in which case hardened in which case hardened carbon steel is not sufficient
Through hardened
Carbon steel
or AISI 1055		 C55E 1.1203 0.50
to
0.60		 0.60
max		 0.60
to
0.90		 0.030 0.050 58
to
66 HRC		 7.86 Through hardened, used in applications in which case hardened in which case hardened carbon steel is not sufficient
Through hardened
Carbon steel C85
or AISI 1085		 D85.2 1.0616 0.83
to
0.88		 0.10
to
0.30		 0.30
to
0.70		 0.040
max		 0.040 max 60
to
66 HRC		 7.85 Through hardened, used in applications in which case hardened in which case hardened carbon steel is not sufficient
Case Hardened
Carbon steel
AISI 1010/1015		 0.06
to
0.2		 0.10
to
0.60		 0.3
to
0.9		 0.045
max		 0.045
max		 60
to
66 HRC		 7.86 Usable when through hardened steel is not necessary
Soft steel "F"
no hardened
XC 10 or CQ 15		 0.17 max 0.045
max		 0.045
max		 7.86 Can be machined and welded

青岛百克滚珠传动部件有限公司
Qingdao BRBC Balls & Transmission Parts Co., Ltd.

921 Tuanjie Road
Economic and Technological Development Zone
Qingdao, Shandong Province

Tel: (+86-532) 8610 7680
Fax: (+86-532) 8610 7682

Email: contact@brbc.cn

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