SA194 Grade 8R S20910 XM19 - ASME SA-194/SA-194M-2019

Grade	SA194 Grade 8R
	S20910
Other Names
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 8R Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N	V	More
Minimum Value	-	-	4	-	-	20.5	11.5	1.5	0.2	0.1	Cb+Ta: 0.10~0.30
Maximum Value	0.06	1	6	0.045	0.03	23.5	13.5	3	0.4	0.3	Cb+Ta: 0.10~0.30

• 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 8R Mechanical Properties

Hardness HBW
HB:≥183~271 HRC:≤25 HRB:≥88

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