Alloy 28, also referred to as UNS N08028, is a highly flexible alloy that boasts outstanding ability to withstand corrosive attacks in various hostile environments. The first and the most outstanding property of this white metal is its abundance in nickel, chromium, and iron. These properties make it exceptionally attractive to the corrosion shelf and it is resistant to the acids, alkalis, and any types of stress corrosion cracking and pitting. It has numerous commercial applications in chemical process and purification systems including water treatment and marine industries. The chemical properties of this material are high nickel content (~ 30-35%), chromium content (~26-28%), and additions of molybdenum and copper. Consequently, this combination can be utilized in different kinds of industries. Alloy 28 Grades happen to differ a bit among each other, although they are formed by the particular alloying elements and impurities, they all have superior corrosion resistance properties. Comprehensive tables, charts and PDFs summarizing the elements properties and applications are easily accessed on the internet for referencing and utilization.
Alloy 28, also called UNS N08028 is a bright-working nickel alloy with superior corrosion resistance in a wide spectrum of environments such as sulfuric acid, phosphoric acid, and seawater. Often its chemical components includes nickel (Ni), iron (Fe), chromium (Cr) and molybdenum (Mo) with other elements like copper (Cu) and nitrogen (N) only in trace amount. This catalyst achieves this thanks to its unique stabilizing effect, combining with both elements to form an eco-friendly coating of stable oxides and salts with enhanced corrosion and oxidation resistance. It is used frequently in sectors like chemical procedures, gas & oil business, and shipbuilding. Alloy 28 is being engineered to meet the most stringent international standards, resulting in its robust and consistent performance in the market.
Elements | Iron, Fe | Nickel, Ni | Chromium, Cr | Molybdenum, Mo | Manganese, Mn | Others |
---|---|---|---|---|---|---|
Min (%) | 29 | 30 | 26 | 3 | - | - |
Max (%) | 40.4 | 34 | 28 | 4 | ≤2.5 | Remainder |
Advantages:
Chemical Resistance: Highly resistant to a wide range of chemicals and acids.
Creep Resistance: Shows good resistance to creep deformation at high temperatures.
Fabricability: Can be easily fabricated into various shapes.
Longevity: Offers long service life in corrosive environments.
Disadvantages:
Cost: Higher cost compared to standard stainless steels.
Maintenance: Requires careful maintenance for corrosion resistance.
Welding Issues: May experience difficulties and require specialized techniques.
Limited Strength: Lower mechanical strength compared to high-performance alloys.
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