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DIN W.Nr.2.4856 Screw
QS Fastener: DIN W.Nr.2.4856 Screw
Name: DIN W.Nr.2.4856 Screw
Material: NiCr22Mo9Nb
Hardness: 220 HB
Size: M8 to M64
Length: 30 to 800 mm
Standard: UNS, DIN, BSW, NF
Feature: Excellent Corrosion Resistance, Certified to NACE standard by the American Society of Corrosion Engineers
Application: For Chemical process industries and Ssituations in Contact with Seawater and Subjected to High Mechanical Stress
Material: NiCr22Mo9Nb
Hardness: 220 HB
Size: M8 to M64
Length: 30 to 800 mm
Standard: UNS, DIN, BSW, NF
Feature: Excellent Corrosion Resistance, Certified to NACE standard by the American Society of Corrosion Engineers
Application: For Chemical process industries and Ssituations in Contact with Seawater and Subjected to High Mechanical Stress
Quantity
The DIN W.Nr.2.4856 Screw is made from NiCr22Mo9Nb material, with a hardness not exceeding 220 HB. It is available in sizes ranging from M8 to M64 and lengths from 30 to 800 mm, meeting diverse engineering needs. It complies with international standards such as UNS, DIN, BSW, and NF, and can be customized according to customer requirements to ensure product quality and reliability. Certified by the National Association of Corrosion Engineers (NACE), the DIN W.Nr.2.4856 Screw demonstrates excellent corrosion resistance, making it particularly suitable for the chemical industry and high mechanical stress environments exposed to seawater. Under extreme conditions, this screw ensures the safety and stability of equipment, making it an ideal choice for high-performance connections. Whether in complex chemical processing equipment or demanding marine engineering applications, the DIN W.Nr.2.4856 Screw provides durable and reliable performance support, ensuring the excellence of engineering operations.
Corrosion Resistance of DIN W.Nr.2.4856 Screw
The DIN W.Nr.2.4856 Screw exhibits excellent corrosion resistance in alkaline environments, primarily due to its high nickel, chromium, and molybdenum content. These elements work together to form a stable passive film, effectively resisting the erosion of alkaline media.
The DIN W.Nr.2.4856 Screw exhibits excellent corrosion resistance in alkaline environments, primarily due to its high nickel, chromium, and molybdenum content. These elements work together to form a stable passive film, effectively resisting the erosion of alkaline media.
Performance in Sodium Hydroxide (NaOH) Environments
The DIN W.Nr.2.4856 Screw demonstrates an extremely low corrosion rate in sodium hydroxide solutions, especially under low concentrations and ambient temperatures. As the concentration and temperature of sodium hydroxide increase, the corrosion rate slightly rises but remains at a very low level.
The DIN W.Nr.2.4856 Screw demonstrates an extremely low corrosion rate in sodium hydroxide solutions, especially under low concentrations and ambient temperatures. As the concentration and temperature of sodium hydroxide increase, the corrosion rate slightly rises but remains at a very low level.
- Low Concentration Sodium Hydroxide: In 10% sodium hydroxide, the DIN W.Nr.2.4856 Screw shows almost no significant corrosion, with a corrosion rate of <0.005 mm/year, making it suitable for the storage and transportation of dilute alkaline solutions in chemical equipment.
- Medium Concentration Sodium Hydroxide: In 50% sodium hydroxide, the corrosion rate of the DIN W.Nr.2.4856 Screw slightly increases, with a corrosion rate of <0.01 mm/year, but remains at a very low level, making it suitable for equipment in moderate alkaline environments.
Performance in Potassium Hydroxide (KOH) Environments
The DIN W.Nr.2.4856 Screw also demonstrates excellent corrosion resistance in potassium hydroxide solutions, with performance similar to that in sodium hydroxide.
The DIN W.Nr.2.4856 Screw also demonstrates excellent corrosion resistance in potassium hydroxide solutions, with performance similar to that in sodium hydroxide.
- Low Concentration Potassium Hydroxide: In 10% potassium hydroxide, the DIN W.Nr.2.4856 Screw shows almost no significant corrosion, with a corrosion rate of <0.005 mm/year, making it suitable for the storage and transportation of dilute alkaline solutions in chemical equipment.
- Medium Concentration Potassium Hydroxide: In 50% potassium hydroxide, the corrosion rate of the DIN W.Nr.2.4856 Screw slightly increases, with a corrosion rate of <0.01 mm/year, but remains at a very low level, making it suitable for equipment in moderate alkaline environments.
Mechanism of Alkaline Corrosion Resistance
The alkaline corrosion resistance of the DIN W.Nr.2.4856 Screw is primarily attributed to its alloy composition and the formation of a passive film:
- Nickel (Ni): Provides base corrosion resistance, especially in alkaline media.
The alkaline corrosion resistance of the DIN W.Nr.2.4856 Screw is primarily attributed to its alloy composition and the formation of a passive film:
- Nickel (Ni): Provides base corrosion resistance, especially in alkaline media.
- Chromium (Cr): Forms a dense Cr₂O₃ passive film, effectively resisting the erosion of alkaline media.
- Molybdenum (Mo): Enhances the alloy's corrosion resistance in alkaline media, particularly under high temperatures and concentrations.
Conclusion
The DIN W.Nr.2.4856 Screw, made from Inconel 625 material, demonstrates outstanding corrosion resistance in alkaline media such as sodium hydroxide and potassium hydroxide. Its extremely low corrosion rate and stable passive film make it an ideal choice for industries such as chemical processing, battery manufacturing, and nuclear energy. Whether in low or medium concentration alkaline environments, the DIN W.Nr.2.4856 Screw provides long-term reliability and durability, meeting the demands of harsh operating conditions.
The DIN W.Nr.2.4856 Screw, made from Inconel 625 material, demonstrates outstanding corrosion resistance in alkaline media such as sodium hydroxide and potassium hydroxide. Its extremely low corrosion rate and stable passive film make it an ideal choice for industries such as chemical processing, battery manufacturing, and nuclear energy. Whether in low or medium concentration alkaline environments, the DIN W.Nr.2.4856 Screw provides long-term reliability and durability, meeting the demands of harsh operating conditions.
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