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Home Material JIS G 4308-2013
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Grade SUS 440C
Corresponding Standard JIS G 4308-2013
Stainless steel wire rods
Classification Martensitic Stainless Steel
Properties Corrosion Resistance
SUS 440C Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo
Minimum Value 0.95 - - - - 16 - -
Maximum Value 1.2 1 1 0.04 0.03 18 0.6 0.75
1 Approximate Comparison Table Stainless Bearing Steel
China Taiwan, China Japan South Korea Russia
GB ISC CNS JIS KS GOST
9Cr18 S44090 440C SUS440C STS440C 95Х18
2 Approximate Comparison Table Stainless Bearing Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France Sweden
GB ISC CNS JIS KS ASTM/AISI ISO DIN EN/DIN W-Nr. NF EN/NF SKF
9Cr18Mo
G102Cr18Mo 		S45090
B21810 		440C SUS440C STS440C A756 440C X108CrMo17
(B52) 		X102CrMo17 1.3543 Z100CD17 SKF577
STORA577
3 Approximate Comparison Table Martensitic Stainless Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST
108Cr17
(11Cr17)
9Cr18 		S44096 440C SUS 440C STS 440C 440C S44004 X105CrMo 17
A-1b
(ISO 683-13-1986) 		X105CrMo 17 1.4125 Z100CD17 X105CrMo 17 1.4125 95Х18
4 Approximate Comparison Table Martensitic Stainless Steel
China Japan United States International Organization for Standardization Germany European Standard
GB ISC JIS ASTM/AISI UNS ISO DIN EN/DIN W-Nr. EN Numerical Grade
102Cr17Mo
(9Cr18Mo) 		S45990 SUS 440C 440C S44004 X105CrMo 17
A-1b
(ISO 683-13-1986) 		X105CrMo 1.4125 X105CrMo 17 1.4125
5 Approximate Comparison Table Plastic Mold Steel
China Japan United States Germany
GB ISC JIS ASTM DIN EN/DIN W-Nr.
9Cr18 T44093 SUS 440C 440C X45Cr13 1.3541
6 Approximate Comparison Table Martensitic Stainless Steel
China Japan United States International Organization for Standardization European Standard
GB ISC JIS UNS ISO Numerical Grade Numerical Grade
108Cr17 S44096 SUS440C S44004 X110Cr17 4023-440-04-I (1.4023)
SUS440C Corresponding Standards(Same grade name, different standards)
1 JIS G 4303-2005
SUS 440C
2 JIS G 4308-2013
SUS 440C
3 JIS G 4309-2013
SUS 440C SUS 440C-W2
4 JIS G 4318-2016
SUS 440C

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