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Zeron 100 Nut
QS Fastener: Zeron 100 Nut
Name: Zeron 100 Nut
Material: S32760
Size: M5 to M100
Grade: A
Elongation: 25%
Standard: ANSI, DIN, UNS, ASTM
Feature: High mechanical strength and good ductility, good corrosion resistance
Application: Primarily used in Oil and Gas and Marine Applications, Including Pressure Vessels, Choke Valves, Flanges and Piping Systems
Material: S32760
Size: M5 to M100
Grade: A
Elongation: 25%
Standard: ANSI, DIN, UNS, ASTM
Feature: High mechanical strength and good ductility, good corrosion resistance
Application: Primarily used in Oil and Gas and Marine Applications, Including Pressure Vessels, Choke Valves, Flanges and Piping Systems
Quantity
Zeron 100 Nut is manufactured from S32760 super duplex stainless steel, with sizes ranging from M5 to M100, and complies with ANSI, DIN, UNS, and ASTM standards. It is classified as Grade A and offers an elongation rate of 25%. Combining high mechanical strength with excellent ductility, it also provides exceptional corrosion resistance. Primarily used in the oil and gas, and marine engineering sectors, it is the preferred solution for reliable connections in critical applications such as pressure vessels, choke valves, flanges, and piping systems.
Zeron 100 Nut is a nickel-based duplex stainless steel alloy fastener. Its unique chemical composition and duplex microstructure enable it to deliver outstanding corrosion resistance in extreme environments.
1. Corrosion Resistance in Chloride Environments
1.1 Pitting Corrosion Resistance
Zeron 100 Nut exhibits excellent pitting corrosion resistance in chloride environments, primarily due to its high chromium (Cr), molybdenum (Mo), and nitrogen (N) content. These elements work synergistically to form a dense passive film, effectively resisting chloride ion attack.
1.1 Pitting Corrosion Resistance
Zeron 100 Nut exhibits excellent pitting corrosion resistance in chloride environments, primarily due to its high chromium (Cr), molybdenum (Mo), and nitrogen (N) content. These elements work synergistically to form a dense passive film, effectively resisting chloride ion attack.
Critical Pitting Temperature (CPT): The CPT of Zeron 100 Nut in a 3.5% NaCl solution is typically ≥ 45°C, significantly higher than that of conventional stainless steels (e.g., 316L with a CPT of approximately 25°C).
Critical Pitting Temperature (CPT) in FeCl₃: In a 6% FeCl₃ solution, the CPT of Zeron 100 Nut exceeds 50°C, demonstrating its stability in high-temperature chloride environments.
1.2 Crevice Corrosion Resistance
Zeron 100 Nut also shows superior crevice corrosion resistance in chloride environments, with its high molybdenum and nitrogen content significantly enhancing its performance.
Zeron 100 Nut also shows superior crevice corrosion resistance in chloride environments, with its high molybdenum and nitrogen content significantly enhancing its performance.
Critical Crevice Corrosion Temperature (CCT): In a 6% FeCl₃ solution, the CCT of Zeron 100 Nut is typically ≥ 35°C, far exceeding that of conventional duplex stainless steels (e.g., 2205 with a CCT of approximately 25°C).
Long-Term Exposure Test: After one year of exposure in seawater, Zeron 100 Nut showed no significant signs of crevice corrosion.
2. Corrosion Resistance in Sulfide Environments
2.1 Stress Corrosion Cracking (SCC) Resistance
Zeron 100 Nut demonstrates excellent resistance to stress corrosion cracking in hydrogen sulfide (H₂S) environments, with its duplex structure and nickel content effectively inhibiting crack initiation and propagation.
2.1 Stress Corrosion Cracking (SCC) Resistance
Zeron 100 Nut demonstrates excellent resistance to stress corrosion cracking in hydrogen sulfide (H₂S) environments, with its duplex structure and nickel content effectively inhibiting crack initiation and propagation.
NACE MR0175/ISO 15156 Compliance: Zeron 100 Nut complies with NACE MR0175/ISO 15156 standards, making it suitable for sour service environments with H₂S partial pressures ≤ 1 bar.
Slow Strain Rate Test (SSRT): In a 25% NaCl + 0.5% H₂S solution, the time to fracture for Zeron 100 Nut is ≥ 500 hours, significantly longer than that of conventional stainless steels (e.g., 316L with a fracture time of approximately 100 hours).
2.2 Sulfide Corrosion Resistance
Zeron 100 Nut exhibits excellent uniform corrosion resistance in sulfide environments, with its high chromium and molybdenum content effectively resisting sulfide attack.
Zeron 100 Nut exhibits excellent uniform corrosion resistance in sulfide environments, with its high chromium and molybdenum content effectively resisting sulfide attack.
Corrosion Rate: In a 5% H₂SO₄ + 0.1% H₂S solution, the corrosion rate of Zeron 100 Nut is ≤ 0.01 mm/year, far lower than that of conventional stainless steels (e.g., 304 with a corrosion rate of approximately 0.5 mm/year).
3. Corrosion Resistance in Acidic Environments
3.1 Sulfuric Acid Resistance
Zeron 100 Nut demonstrates excellent corrosion resistance in sulfuric acid environments, with its copper (Cu) content significantly enhancing its performance.
3.1 Sulfuric Acid Resistance
Zeron 100 Nut demonstrates excellent corrosion resistance in sulfuric acid environments, with its copper (Cu) content significantly enhancing its performance.
Corrosion Rate: In a 10% H₂SO₄ solution, the corrosion rate of Zeron 100 Nut is ≤ 0.05 mm/year, much lower than that of conventional duplex stainless steels (e.g., 2205 with a corrosion rate of approximately 0.2 mm/year).
High-Temperature Performance: In a 50% H₂SO₄ solution at 80°C, the corrosion rate of Zeron 100 Nut is ≤ 0.1 mm/year, indicating its stability in high-temperature acidic environments.
3.2 Hydrochloric Acid Resistance
Zeron 100 Nut also shows excellent corrosion resistance in hydrochloric acid environments, with its high nickel and molybdenum content effectively resisting chloride ion attack.
Zeron 100 Nut also shows excellent corrosion resistance in hydrochloric acid environments, with its high nickel and molybdenum content effectively resisting chloride ion attack.
Corrosion Rate: In a 1% HCl solution, the corrosion rate of Zeron 100 Nut is ≤ 0.02 mm/year, significantly lower than that of conventional stainless steels (e.g., 316L with a corrosion rate of approximately 0.5 mm/year).
Conclusion
Zeron 100 Nut exhibits exceptional corrosion resistance in chloride, sulfide, and acidic environments. Its high resistance to pitting, crevice corrosion, and stress corrosion cracking ensures long-term stability in seawater, sour oil and gas fields, and chemical media. Test data confirm that Zeron 100 Nut is an ideal solution for material failure in extreme corrosive environments, significantly enhancing equipment safety and service life.
Zeron 100 Nut exhibits exceptional corrosion resistance in chloride, sulfide, and acidic environments. Its high resistance to pitting, crevice corrosion, and stress corrosion cracking ensures long-term stability in seawater, sour oil and gas fields, and chemical media. Test data confirm that Zeron 100 Nut is an ideal solution for material failure in extreme corrosive environments, significantly enhancing equipment safety and service life.
With its high mechanical strength, excellent ductility, and superior corrosion resistance, Zeron 100 Nut is the fastener of choice for demanding applications in the oil and gas, marine engineering, and chemical industries. It is widely used in critical equipment such as pressure vessels, choke valves, flanges, and piping systems.
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