SA194 Grade 8MLCuN S31254 - ASME SA-194/SA-194M-2019

Grade	SA194 Grade 8MLCuN
	S31254
Corresponding Standard	ASME SA-194/SA-194M-2019 Specification for Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both
Classification	Austenitic Stainless Steel
Properties	Corrosion Resistance

SA194 Grade 8MLCuN Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N
Minimum Value	-	-	-	-	-	19.5	17.5	0.5	6	0.18
Maximum Value	0.02	0.8	1	0.03	0.01	20.5	18.5	1	6.5	0.22

• The intentional addition of Bi, Se, Te, and Pb is not permitted except for Grades 6F, 8F, and 8FA, in which Se is specified and required.
• Total aluminum, soluble and insoluble.
• Because of the degree to which sulfur segregates, product analysis for sulfur over 0.060 % max is not technologically appropriate.

SA194 Grade 8MLCuN Mechanical Properties

Hardness HBW
HB:≥126~300 HRC:≤32 HRB:≥60

1 Approximate Comparison Table Austenitic Stainless Steel

China		Japan	United States		International Organization for Standardization	European Standard		Sweden
GB	ISC	JIS	ASTM	UNS	ISO	EN	Numerical Grade	SS
015Cr20Ni18Mo6CuN	S31252	SUS 312L	S31254	S31254	X1CrNiMoN 20-18-7 X1CrNiMoCuN20-18-7	X1CrNiMoCuN 20-18-7	1.4547	254SMO

2 Approximate Comparison Table Austenitic Stainless Steel

China	United States		Germany		European Standard		Sweden
GB	Commercial Grade	UNS	DIN EN/DIN	W-Nr.	EN	Numerical Grade	SS
254SMo	254SMO	S31254	X1CrNiMoCuN20-18-7	1.4547	X1CrNiMoCuN20-18-7	1.4547	2378

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