102Cr17Mo S44098 S45990 9Cr18Mo - GB /T 20878-2024

Grade	102Cr17Mo
China ISC	S44098
Old Grade
Corresponding Standard	GB /T 20878-2024 Stainless Steels - Designation and Chemical Composition
Classification	Martensitic Stainless Steel
Properties	Corrosion Resistance Machinability
Density	7.7 g/cm³

102Cr17Mo Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo
Minimum Value	0.95	-	-	-	-	16	-	0.4
Maximum Value	1.1	0.8	0.8	0.04	0.03	18	0.6	0.7

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

102Cr17Mo Corresponding Standards(Same grade name, different standards)

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