NiMark 250

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#NiMark # #250

Description

NiMark 250 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: NiMark 250

Category	Type	Steel Grade
Steel Grades	High Alloy	NiMark 250
		Nicrofer 6025 HT
		Nicrofer 3228 NnCe
		NILO 36
		NILO 42
		NILO 48
		NILO Alloy 365
		NILO 475
		NILO K
		NILOMAG 36
		NILOMAG 77

Chemical composition(mass fraction)(wt.%) of the NiMark 250

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.03	0.1	0.1	0.01	0.01	4.7-5	18-19
Mo	Al	Cu	Nb	Ti	Zr	Ca
	0.05-0.15			0.3-0.5	≤0.03	≤0.05
N	Co	Pb	B	Other
	7-8		≤0.003

Mechanical Properties of steel grade NiMark 250

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)
592 (≥)	545 (≥)	31	31	11	Solution and Aging, Annealing, Ausaging, Q+T,etc	133

Physical Properties of steel grade NiMark 250

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
14	-	-			0.32	-
125	866	-	41.3	231		-
678	-	31	11.2			134	241

Heat Treatment of steel grade NiMark 250

Heat treated : 1251°C - 1532°C

Technological Curves of steel grade NiMark 250

No Curve

Cross Reference Table (Equivalent Grade) of NiMark 250

Grade	Standard	Country	Application
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
UNS G10060	UNS	USA	General use carbon steel bar

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Rfq.: sales@longhaisteel.com

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