X53CrMnNiN21-9 1.4871 - NF EN 10090-1998

Grade	X53CrMnNiN21-9
	1.4871
Corresponding Standard	NF EN 10090-1998 Valve steels and alloys for internal combustion engines
Classification	Austenitic Stainless Steel
Density	7.8 g/cm³

X53CrMnNiN21-9 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S ^①	Cr	Ni	N
Minimum Value	0.48	-	8	-	-	20	3.25	0.35
Maximum Value	0.58	0.25	10	0.045	0.03	22	4.5	0.5

◎ Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser, excpet for finishing the cast. All appropriate measures shall be taken to prevent the addition of these elements from scrap or other materials used in steelmaking ,which may adversely affect the mechanical properties and usability .

X53CrMnNiN21-9 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
Steel:	Controlled Cooling ①	≈ 1300				HB: ≈ 385
Steel:	+Q1000~1100 ②	≤1300				HB: ≤ 385
Steel: d≤40	+AT+P	950 to 1200	580 ③	8 ③	10 ③	HRC:30 ③④

◎ d=thickness；+A=soft annealed；+Q=quenched；+P=precipitation hardened；+AT=solution annealed；+QT=quenched and tempered；The suffix number after the heat treatment symbol indicates the temperature in °C.

X53CrMnNiN21-9 Corresponding Standards(Same grade name, different standards)

1	EN 10090-1998
	X53CrMnNiN21-9 1.4871
2	NF EN 10090-1998
	X53CrMnNiN21-9 1.4871

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