F879M Class A1-70 384 S38400 - ASTM F879M-2016

Grade	F879M Class A1-70 384
USA UNS	S38400
Corresponding Standard	ASTM F879M-2016 :Stainless Steel Socket Button and Flat Countersunk Head Cap Screws (Metric)
Classification	Austenitic Stainless Steel

F879M Class A1-70 384 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni
Minimum Value	-	-	-	-	-	15	17
Maximum Value	0.08	1	2	0.045	0.03	17	19

F879M Class A1-70 384 Mechanical Properties

	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
M3~M20 (full size)	≥700			HRA ≥59
M3~M20 (machined)	≥600	≥450	≥20	≥59

Approximate Comparison Table Austenitic Stainless Steel

China		Japan	United States	International Organization for Standardization		European Standard
GB	ISC	JIS	UNS	ISO	Numerical Grade	Numerical Grade
06Ni18Cr16	S38408	SUS384	S38400	X3NiCr18-16	4389-384-00-I	(1.4389)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!