A194 Grade 7 - ASTM A194/194M-2016

Grade	A194 Grade 7
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

A194 Grade 7 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Mo
Minimum Value	0.38	0.15	0.75	-	-	0.8	0.15
Maximum Value	0.48	0.35	1	0.035	0.04	1.1	0.25

• 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 7 Mechanical Properties

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

A194Grade7 Corresponding Standards(Same grade name, different standards)

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