A194 Grade 8ML4CuN S31730 - ASTM A194/194M-2016

Grade	A194 Grade 8ML4CuN
USA UNS	S31730
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	Austenitic Stainless Steel
Properties	Corrosion Resistance

A194 Grade 8ML4CuN Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N
Minimum Value	-	-	-	-	-	17	15	4	3	-
Maximum Value	0.03	1	2	0.04	0.01	19	16.5	5	4	0.045

• 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 8ML4CuN Mechanical Properties

product	Hardness HBW
Finished Nuts	126~300HBW ≤32HRC ≥60HRB

A194Grade8ML4CuN Corresponding Standards(Same grade name, different standards)

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