102Cr17Mo S45990 9Cr18Mo - GB /T 1220-2007

Grade	102Cr17Mo
China ISC	S45990
Old Grade
Corresponding Standard	GB /T 1220-2007 Stainless Steel Bars
Classification	Martensitic Stainless Steel

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

102Cr17Mo Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
Steel bars; d≤75	Annealing					≤269
Sample; d≤75	Quenching + Tempering	-	-	-	-	HRC ≥55	-

• This does not apply to flat bars, but if required by the buyer, it shall be determined through negotiation between the supplier and the buyer.

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)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!