DIN 9021 Washer ISO 7093 Flat Washer Stainless Steel 316 A4 Purification

Description

DIN 9021 washer (ISO 7093) made from Stainless Steel 316 (A4) provide enhanced corrosion resistance, high durability, and superior performance in harsh environments, making them ideal for marine, chemical, pharmaceutical, food processing, and purification applications. Compared to 304 (A2) stainless steel, 316 (A4) offers better resistance to saltwater, acids, and extreme temperatures, making it the preferred choice for demanding industries. Ever Hardware provides custom made fasteners and customizable packaging.

Key Advantages

1. Superior Corrosion and Chemical Resistance
• Enhanced molybdenum content gives 316 stainless steel better resistance to chlorides, acids, and harsh chemicals.
• Highly resistant to rust and oxidation, making it perfect for marine, chemical processing, and medical applications.

2. Large Outer Diameter for Better Load Distribution
• The wide surface area helps spread loads evenly, reducing stress on bolts, screws, and softer materials like aluminum or plastic.
• Prevents damage to delicate surfaces, reducing the risk of material deformation or cracking.

3. Extreme Temperature and Weather Resistance
• Performs well in high-temperature (up to 870°C or 1600°F) and cryogenic conditions.
• UV-resistant and unaffected by harsh weather, making it ideal for outdoor and marine environments.

4. Hygienic and Purification-Grade Material
• Non-porous surface prevents bacterial growth, making it FDA-compliant for food and medical use.
• Used in water purification, food processing, and pharmaceutical equipment where contamination must be avoided.

5. High Strength and Mechanical Durability
• Stronger than 304 stainless steel, ensuring long-term performance in vibrations, structural loads, and high-pressure applications.
• Resistant to wear, making it ideal for heavy-duty and industrial uses.

6. Non-Magnetic and Electrically Insulating Properties
• Low magnetic permeability prevents interference in precision instruments and electronic equipment.
• Provides mild electrical insulation, useful for applications requiring non-conductive fasteners.

7. Versatile and Multi-Purpose Usage
• Ideal for marine, chemical, structural, pharmaceutical, and aerospace applications.
• Used in high-humidity, saline, and corrosive environments where standard stainless steel may fail.

Common Applications
• Marine & Offshore – Corrosion-resistant fasteners for seawater exposure.
• Chemical Processing & Purification – Acid-resistant hardware for harsh environments.
• Food & Pharmaceutical Industry – Hygienic, non-toxic, and contamination-free fastening.
• Structural & Aerospace Applications – Strong and lightweight material for critical connections.
• Water Treatment & Outdoor Installations – Rust-resistant hardware for prolonged exposure.

Conclusion

DIN 9021 washer (ISO 7093) Stainless Steel 316 (A4) provides exceptional corrosion resistance, high strength, and superior durability in extreme environments, making them the best choice for marine, chemical, pharmaceutical, food processing, and purification applications.