X50CrMnNiNbN 21-9

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#X50CrMnNiNbN # #21-9

Description

X50CrMnNiNbN 21-9 Stainless Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Stainless Steel: X50CrMnNiNbN 21-9

Category	Type	Steel Grade
Steel Grades	Stainless Steel	X50CrMnNiNbN 21-9
		X40CrSiMo 10-2
		X80CrSiMoW 15-2
		X85CrMoV 18-2
		X60CrMnMoVNbN 21-10
		X33CrNiMnN 23-8
		X53CrMnNiNbN 21-9
		X53CrMnNiN 21-9
		X45CrNiW 18-9
		X55CrMnNiN 20-8
		X70CrMnNiN 21-6

Chemical composition(mass fraction)(wt.%) of the X50CrMnNiNbN 21-9

C	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni	Mo	Other
0.45-0.55	0.45	8.00-10.00	0.045	0.030	20.00-22.00	3.50-5.00	---------	W 0.80-1.50 Nb 1.80-2.50 N 0.40-0.60

Mechanical Properties of steel grade X50CrMnNiNbN 21-9

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
543 (≥)	934 (≥)	21	11	23	Solution and Aging, Annealing, Ausaging, Q+T,etc	341

Physical Properties of steel grade X50CrMnNiNbN 21-9

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
43	-	-			0.13	-
552	164	-	31.3	311		-
261	-	31	33.2			433	322

Heat Treatment of steel grade X50CrMnNiNbN 21-9

Heat treated : 1719°C - 1796°C

Technological Curves of steel grade X50CrMnNiNbN 21-9

No Curve

Cross Reference Table (Equivalent Grade) of X50CrMnNiNbN 21-9

Grade	Standard	Country	Application
X50CrMnNiNbN21-9	DIN	Germany	Valve steel
X50CrMnNiNbN21-9	AFNOR	France	Valve Internal Combustion Engines steel (NF-EN 1009-1998)
ISO X50CrMnNiNbN21 9			ISO standard valve austenite steel
EN X50CrMnNiNbN21-9	EN		Euronorm Stainless Steel
Q195		China	Engineering and welding
Q215		China	Engineering and welding
Q215 B		China	Engineering and welding
Q235		China	Engineering and welding
Q235 B		China	Engineering and welding
Q235 C		China	Engineering and welding
Q235 D		China	Engineering and welding
Q255 A		China	Engineering and welding
Q255 B		China	Engineering and welding
Q275		China	Engineering and welding
Q235q C		China	Bridge structure with steel
Q235q D		China	Bridge structure with steel
Q345q E		China	Bridge structure with steel
Q345q C		China	Bridge structure with steel
ASTM 1030	ASTM	USA	General use carbon steel bar
UNS G10300	UNS	USA	General use carbon steel bar

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