A194 Grade 3 Type 501 - ASTM A194/194M-2016

Grade	A194 Grade 3
Other Names
Corresponding Standard	ASTM A194/194M-2016 Carbon steel, Alloy steel, and Stainless Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both
Classification	Alloy Steel
Properties	Corrosion Resistance

A194 Grade 3 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Mo
Minimum Value	0.1	-	-	-	-	4	0.4
Maximum Value	-	1	1	0.04	0.03	6	0.65

• 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.

A194 Grade 3 Mechanical Properties

product	Hardness HBW
Finished Nuts	248~327HBW 24~35HRC
Heat-treated Sample Nut	≥201HBW ≥94HRB

A194Grade3 Corresponding Standards(Same grade name, different standards)

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