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 Performance
AISI440C Material
Part Name
Material
Bearing Rings
AISI440C
9Cr18Mo
AISI440B
9Cr18
AISI304
0Cr18Ni9
AISI316
0Cr17Ni12Mo2
Ball
AISI440C
AISI440C
AISI304
AISI316
Retainer
AISI304
AISI304
AISI304
RS
ZZ
ZZ
AISI304
The chemical composition of different stainless steel numbers

Stainless steel N0.

C%
Cr%
Si%
Mn%
S%
P%
Mo%
Ni%
AISI440B
0.90-1.00
17-19
+0.8
+0.8
+0.03
+0.035
   
AISI440C
0.95-1.10
16-18
+0.8
+0.8
+0.03
+0.035
0.4-0.7
 
AISI304(304L)
+0.07
17-19
+1
+2
+0.03
+0.035
2-3
8-11
AISI316(316L)
+0.08
16-18.5
+1
+2
+0.03
+0.035
 
10-14
The contrast of bearing steel number of each country
Country
China
U.S.A
Germany
Japan
France
DIN
W-Nr

Bearing
Steel N0.
9Cr18
AISI440B
X90CrMoV18
1.4112
SUS440
Z105CrMo17
9Cr18Mo
AISI440C
X105CrMo17
1.4125
SUS440C
Z105CrMo17
0Cr18Ni9
AISI304
X5CrNi18-10
1.4301
SUS304
Z7CN18-09
0Cr17Ni12Mo2
AISI316
X5CrNiMo17-12-2
1.4401
SUS316
Z7CND18-12-03
 
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