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Nickel has high chemical stability and good corrosion resistance in many media. Its standard electrode position is -0.25V, which is positive than iron and negative than copper.Nickel exhibits good corrosion resistance in the absence of dissolved oxygen in dilute non-oxidized properties (e.g., HCU, H2SO4), especially in neutral and alkaline solutions.This is because nickel has the ability to passivate, forming a dense protective film on the surface, which prevents nickel from further oxidation.
Product Description:
Nickel N4 & Nickel N6: High-purity nickel alloys with superior mechanical properties and excellent corrosion resistance. Nickel N4 offers excellent thermal and electrical conductivity, making it ideal for electronic applications. Nickel N6 exhibits exceptional resistance to various corrosive environments, making it suitable for chemical and marine industries. Both alloys are widely used in aerospace, nuclear, and chemical processing sectors.
Product features:
Excellent corrosion resistance of concentrated alkali solution. It has excellent corrosion resistance to alkaline and neutral solution media such as carbonate, nitrate, oxide and acetate. Resistance to fatty acid corrosion.
Application scope：
Alkali industry; Chlor-alkali chemical industry and the production of organic chlorides; Food processing industry; High temperature halogen and salt corrosion environment; Electronic instrument parts; Water treatment; All kinds of alkali resistant equipment.
Chemical Composition:
| Alloy | Ni+Co | Cu | Si | Mn | C | Mg | S | Fe | impurity |
| sum | |||||||||
| No less than | Not more than | ||||||||
| N4 | 99.9 | 0.015 | 0.03 | 0.002 | 0.01 | 0.01 | 0.001 | 0.04 | 0.1 |
| N6 | 99.6 | 0.06 | 0.1 | 0.05 | 0.1 | 0.1 | 0.005 | 0.1 | 0.5 |
Physical property:
| Density | Fusing point | Alloy and state | Tensile strength | Yield strength | Rate of elongation | ||||||
| 8.9G/CM3 | 1500-1600℃ | 200.201 | RM N/MM2 | RP0.2N/MM2 | A5% | ||||||
| 380 | 100 | 40 |
Product form and implementation standards:
| product | ASTM Standard | ASME Standard | AME Standard | ||||||||
| Sheet, sheet, strip | B162 | SB162 | 5533 | ||||||||
| Cordless tube | B161,B163 | ||||||||||
| Welded pipe | B725 | SB725 | |||||||||
| Bar, cake | B160 |
Product form:
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