Pure Nickel Wires — Nickel 200/201

Nickel 200/201 — Excellent corrosion resistance for specialty industrial applications

About Pure Nickel Wires

Pure nickel wires offer outstanding corrosion resistance, high thermal and electrical conductivity, and excellent mechanical properties across a wide temperature range. Our pure nickel wire is available in multiple grades including N4, N5 (Nickel 201), N6, N7 (Nickel 200) and N8, each suited to different industrial requirements.

Nickel 200 (N7) and Nickel 201 (N5) are the two most commonly used grades. Nickel 200 is suitable for applications up to 315°C, while low-carbon Nickel 201 is preferred for higher temperature service to prevent graphitization. Both grades offer excellent resistance to alkalis, acids, and corrosive atmospheres.

Pure nickel performs exceptionally well in reducing, neutral and alkaline media. It is one of the few metals that withstand hot, concentrated caustic alkalis such as NaOH and KOH, which is why it is a standard material in chlorine–caustic and chemical processing. It also resists neutral and alkaline salts, dilute non-oxidizing acids (hydrochloric and sulfuric), dry halogen gases below their dew point, and most organic compounds. Its principal limitation is strongly oxidizing environments—nitric acid, wet chlorine and oxidizing salts—where corrosion rates rise sharply.

Nickel is ferromagnetic up to its Curie point (about 358°C) and combines good ductility and formability with useful thermal and electrical conductivity for a corrosion-resistant metal. It can be welded, brazed and drawn down to very fine diameters, and is supplied in hard (Y), semi-hard (Y2), soft/annealed (M) and hot-worked (R) tempers to suit different forming and service requirements.

Fine wire (0.025–1.6mm) is supplied on spools; coarse wire (1.0–10.0mm) is supplied in coils. Custom packaging and OEM labeling available.

Technical Specifications

Pure nickel wire grades and chemical composition

Chemical Composition Grade	Ni+Co	Cu	Fe	Mn	C	Si	S	Mg	P
Chemical Composition Grade	Ni+Co	≤
N4	≥99.9	0.015	0.04	0.002	0.01	0.03	0.001	0.01	0.001
N5(Nickel 201)	≥99.0	0.25	0.4	0.35	0.02	0.35	0.01	-	-
N6	≥99.5	0.1	0.1	0.05	0.1	0.1	0.005	0.1	0.002
N7(Nickel 200)	≥99.0	0.25	0.4	0.35	0.15	0.35	0.01	-	-
N8	≥99.0	0.15	0.3	0.2	0.2	0.15	0.015	0.1	-

According to GB/T26030-2010 and GB/T5235-2021 N7 and N5 are same as Nickel200(UNS N02200/NW2200/W.Nr. 2.4060 & 2.4066) and Nickel201(UNS N02201/NW2201/W.Nr. 2.4061 and 2.4068)

Mechanical properties of the wires

Grade	Finish status	Diameter (mm)	Tensile Strength R_m/(N/mm²)	Elongation A_{100 mm}/% (≥)	Grade	Finish status	Diameter (mm)	Tensile Strength R_m/(N/mm²)	Elongation A_{100 mm}/% (≥)
N4	Y	0.03-0.09	780-1275	-	N6 N8	Y	0.03-0.09	880-1325	-
		>0.09-0.50	735-980	-			>0.09-0.50	830-1080	-
		>0.50-1.0	685-880	-			>0.50-1.00	735-980	-
		>1.0-6.0	535-835	-			>1.00-6.00	640-885	-
		>6.0-10.0	490-785	-			>6.00-10.00	585-835	-
	M	0.03-0.20	≥370	15		M	0.03-0.20	≥420	15
		>0.20-0.50	≥340	20			>0.20-0.50	≥390	20
		>0.50-1.0	≥310	20			>0.50-1.00	≥370	20
		>1.0-10.0	≥290	25			>1.00-10.00	≥340	25
N7 (NW2200)	Y	>0.03-3.2	≥540	-	N5 (NW2201)	M	>0.03-0.45	≥340	20
	Y	>3.2-10.0	≥460	-	N5 (NW2201)	M	>0.45-10.0	≥340	25
	M	>0.03-0.45	≥380	20
	M	>0.45-10.0	≥380	25

Mechanical properties of the bars

Grade	Finish Status	Diameter (mm)	Tensile Strength R_m/(N/mm²)	Elongation A/% (≥)
N4、N5、N6、N7、N8	Y	3-20	≥590	5
		>20-30	≥540	6
		>30-65	≥510	9
	M	3-30	≥380	34
	M	>30-65	≥345	34
	R	32-60	≥345	25
	R	>60-254	≥345	20

We provide the Pure Nickel products in various shapes like the wires, strips and rods. The finish status includes Y(hard), Y2(semi-hard), M(soft) and R(hot processing) finish(according to GB/T21653-2008 and GB/T4435-2010). We can also provide the products upon your request.

Applications

Where pure nickel wires are the material of choice

Battery Manufacturing

Nickel wire is widely used as battery tab material and connector wire in lithium-ion and NiMH battery packs.

Electroplating

High-purity nickel wire as anode material for electroplating processes in decorative and industrial coating.

Specialty Welding

Pure nickel filler wire for welding nickel-base alloys, cast iron, and dissimilar metal joints.

Chemical Processing

Excellent alkali and acid resistance makes pure nickel ideal for chemical plant equipment and piping.

Electronics

Used in electronic components, vacuum tubes, cathode sleeves, and semiconductor manufacturing equipment.

Pure Nickel Wires