Grade A194 Grade 8FA
USA UNS S30300
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 Austenitic Stainless Steel
Properties Corrosion Resistance
A194 Grade 8FA Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni
Minimum Value - - - - 0.15 17 8
Maximum Value 0.15 1 2 0.2 - 19 10
• 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 8FA Mechanical Properties
product Hardness
HBW
Finished Nuts 126~192HBW
60~90HRB
Approximate Comparison Table
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO Numerical Grade DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade BS EN/BS
Y12Cr18Ni9
(Y1Cr18Ni9)
S30317 303 SUS 303 STS 303 303 S30300 X10CrNiS 18-9 4305-303-00-I X8CrNiS 18-9
(X10CrNiS 18-9)
1.4305 Z10CNF 18-09 X8CrNiS 18-9 1.4305 303S21
A194Grade8FA Corresponding Standards(Same grade name, different standards)

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