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Nickel circle NP2 - nickel 200

Nickel circle NP2 - nickel 200

general characteristics

In its properties, nickel is very hard, viscous and malleable metal. It is easily polished, it’s not for nothing that the jewelers were the first to appreciate its qualities. Nickel rod in air at ordinary temperature is covered with a protective oxide film, which protects it from corrosion. It is able to withstand the action of gaseous, liquid corrosive media at temperatures up to 850 ° C. Different types of processing of NP-2 rod are possible due to its plasticity. It is available for rolling, turning, drawing, stamping, welding, etc. The only drawback is an admixture of sulfur, which can form a sulphide film on the surface of nickel products, making the metal more brittle, brittle at high temperatures.


The alloy NP-2 consists of pure nickel with a small amount of impurities. It is indispensable in electrovacuum and special engineering. The workpiece is obtained by means of remelting of nickel waste. Marking «N» means nickel itself, and «P» means semi-finished product. The numbers indicate the content of silicon, copper, iron, sulfur, manganese, and carbon in the alloy. The most popular products are brands N-1, NP-1, NP-3

Chemical composition
Ni Si Fe C Mn Cu Mg Zn P S P Pb, Sn, Sb, Bi, As
Basic. ≤0.15 ≤0,1 ≤0,1 ≤0,05 0.1 0.1 ≤0,07 ≤0,0,02 ≤0.005 ≤0,02 To 0.02

The circle has the following parameters:

-stretched unmeasured 1,5 — 4 m;

Rolled 1 — 3 m and a diameter of not more than 60 mm;

Rolled wire 0,7 — 1,4 m and a diameter of more than 60 mm;

-dimensional length, as well as length, multiple of the dimensional, within the non-dimensional, tolerance tolerance is no more than 15 mm in the direction of increasing length.

Quality requirements

In production, grades H1, H3, semi-finished NP-2, 3 and silica Ni-NK 0.2 are used. The circle of NP-2 should have a clean and smooth surface, do not contain cracks and dirt. Defects that are formed on the surface, in size should not exceed the permissible deviations. The circle is only direct. The degree of allowable curvature should be measured by multiplying the length of the bar by the entire degree of curvature at each specific place of the product. Depending on the type of semi-finished product, its mechanical properties must withstand the required pressure from 370 to 440 MPa. In places of fracture, the rod must not have foreign inclusions or voids, and the edges of the cut must be even.


NP-2 circle is used for the manufacture of parts used at high temperatures, mechanical loads in electrovacuum and special machine building, petrochemical, chemical industry, instrumentation, electrochemistry, cathode production, anodes. Metallurgists use alloy NP-2 to alloy nickel-containing alloys.

Buy at a bargain price

A wide range of nickel alloy from NP-2 alloy at the warehouse of Avek Global LLC is able to satisfy any customer. The quality of products is guaranteed by the absolute observance of technological production standards. Terms of execution of orders are the shortest. If you have any questions, you will receive an exhaustive consultation from experienced managers. With bulk orders, the company provides a system of flexible discounts.