X70CrMnNiN 21-6

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#X70CrMnNiN # #21-6

Description

X70CrMnNiN 21-6 Stainless Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Stainless Steel: X70CrMnNiN 21-6

Category	Type	Steel Grade
Steel Grades	Stainless Steel	X70CrMnNiN 21-6
		X45CrSi 9-3
		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

Chemical composition(mass fraction)(wt.%) of the X70CrMnNiN 21-6

C	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni	Mo	Other
0.65-0.75	0.80	5.50-7.00	0.050	0.02-0.06	20.00-22.00	1.40-1.90	--------	N 0.18-0.28

Mechanical Properties of steel grade X70CrMnNiN 21-6

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)
125 (≥)	867 (≥)	11	22	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	444

Physical Properties of steel grade X70CrMnNiN 21-6

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
22	-	-			0.12	-
794	163	-	42.3	123		-
825	-	44	11.2			211	331

Heat Treatment of steel grade X70CrMnNiN 21-6

Heat treated : 1467°C - 1448°C

Technological Curves of steel grade X70CrMnNiN 21-6

No Curve

Cross Reference Table (Equivalent Grade) of X70CrMnNiN 21-6

Grade	Standard	Country	Application
X70CrMnNiN21-6	DIN	Germany	Valve 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
ASTM 1005	ASTM	USA	General use carbon steel bar
UNS G10050	UNS	USA	General use carbon steel bar
ASTM 1006	ASTM	USA	General use carbon steel bar

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