Grade A194 Grade 9C
USA UNS N08367
AISI
American Iron and Steel Institute
AL-6XN
Corresponding Standard ASTM A194/A194M-2023
Standard Specification for 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 9C Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo N
Minimum Value - - - - - 20 23.5 - 6 0.18
Maximum Value 0.03 1 2 0.04 0.03 22 25.5 0.75 7 0.25
A194 Grade 9C Mechanical Properties
product Hardness
HBW
Finished Nuts 126~300HBW
≤32HRC
≥60HRB
Approximate Comparison Table Austenitic Stainless Steel
Japan United States International Organization for Standardization European Standard
JIS UNS ISO Numerical Grade Numerical Grade
SUS836L N08367 X2NiCrMoN25-21-7 4478-083-67-U (1.4478)
A194Grade9C Corresponding Standards(Same grade name, different standards)

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