SA194 Grade 2HM - ASME SA-194/SA-194M-2019

Grade	SA194 Grade 2HM
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	Carbon Steel

SA194 Grade 2HM Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.4	-	-	-	-
Maximum Value	-	0.4	1	0.04	0.05

• 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 2HM Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Finished Nuts		HB:159~235 HRB:84~99
sample nut	Heat treatment*	HB:≥159 HRB:≥84

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