Sanicro 28 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.02 |
| Silicon (Si) | ≤ 0.75 |
| Manganese (Mn) | ≤ 2.0 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.015 |
| Chromium (Cr) | 27.0 – 29.0 |
| Nickel (Ni) | 30.0 – 34.0 |
| Molybdenum (Mo) | 3.0 – 4.0 |
| Copper (Cu) | 0.60 – 1.40 |
| Nitrogen (N) | ≤ 0.10 |
Key Elements and Their Roles
- Chromium (Cr): High chromium content enhances resistance to oxidation and corrosion, especially in oxidizing environments.
- Nickel (Ni): The significant amount of nickel ensures excellent resistance to stress corrosion cracking and improves ductility.
- Molybdenum (Mo): Molybdenum enhances resistance to pitting and crevice corrosion in chloride-rich environments.
- Copper (Cu): Copper addition improves resistance to sulfuric acid and other reducing agents.
Mechanical Properties of Sanicro 28
- Density: 8.0 g/cm³
- Tensile Strength: 500 – 700 MPa
- Yield Strength (0.2% Offset): ≥ 220 MPa
- Elongation: ≥ 40%
- Hardness: ≤ 223 HB
Corrosion Resistance
Sanicro 28 offers exceptional corrosion resistance in a wide range of environments, including:
- Sulfuric Acid: Outstanding performance in concentrations up to 90%.
- Phosphoric Acid: Suitable for handling concentrated solutions.
- Chloride-Containing Media: Excellent resistance to pitting and crevice corrosion.
- Seawater: Effective against localized corrosion and stress corrosion cracking.
Applications of Sanicro 28
Thanks to its chemical composition and superior corrosion resistance, Sanicro 28 is used in several critical industries, including:
- Chemical Processing Industry: For equipment handling sulfuric and phosphoric acids.
- Oil & Gas Industry: Used in downhole tubulars, heat exchangers, and processing equipment.
- Power Generation: Ideal for heat exchangers in aggressive environments.
- Marine Applications: Suitable for seawater systems and desalination plants.
- Pharmaceutical Industry: For chemical reactors and piping systems handling corrosive substances.
Advantages of Sanicro 28
- Excellent Acid Resistance: Ideal for environments involving aggressive acids.
- High Strength and Ductility: Offers good mechanical performance even in extreme conditions.
- Versatility: Suitable for both oxidizing and reducing environments.
- Ease of Fabrication: Can be welded and formed with standard techniques.
Conclusion
Sanicro 28’s balanced chemical composition makes it a premium choice for industries requiring superior corrosion resistance and mechanical strength. Its ability to withstand harsh environments, especially those involving aggressive chemicals, makes it an indispensable material for demanding applications. Whether in the chemical processing, oil and gas, or marine sectors, Sanicro 28 continues to be a trusted material for long-lasting performance.
For premium-quality Sanicro 28 products, trust Emirerri Steel to deliver exceptional solutions tailored to your needs. Contact us today to learn more!