619 S42300 - ASTM A565/A565M-2010(R2025)

Grade	619
USA UNS	S42300
Corresponding Standard	ASTM A565/A565M-2010(R2025) Martensitic Stainless Steel Bars for High-Temperature Service
Classification	Martensitic Stainless Steel

619 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	V
Minimum Value	0.27	-	0.95	-	-	11	-	2.5	0.2
Maximum Value	0.32	0.5	1.35	0.025	0.025	12	0.5	3	0.3

619 Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
HT - Heat treated (for high-temperature service)	≥965	≥760	≥8	≥20	302~352	≥11
T - Heat treated (for machining)	/	/	/	/	≤285	/
A - Annealed	/	/	/	/	≤248	/

* Hardness taken at the surface for control purposes only. For acceptance purposes, tensile properties govern.

① HT - Heat treated (for high-temperature service)：1875 to 1925°F [1020 to 1050°C], quench in air or oll and temper at 1150°F [620°C] min for 2 h min.

619 Corresponding Standards(Same grade name, different standards)

1	ASTM A565/A565M-2010(R2017)
	619 S42300
2	ASTM A959-2019
	619 S42300
3	ASTM A565/A565M-2010(R2025)
	619 S42300

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