Exploring the World of Duplex Flanges and Fasteners: A Comprehensive Price List


Duplex stainless steel has become increasingly popular in various industries due to its exceptional corrosion resistance and high strength. It’s no wonder that duplex flanges and fasteners are in high demand, playing a crucial role in connecting and securing components in critical applications. In this blog, we’ll delve into the world of duplex flanges and fasteners, providing you with a comprehensive price list to help you make informed decisions for your next project.

Duplex Stainless Steel: A Brief Overview

Before we dive into the price list, let’s briefly understand what duplex stainless steel is. Price List Duplex Flanges Duplex stainless steel is a two-phase microstructure composed of roughly equal parts of austenite and ferrite. This unique composition results in a combination of properties not found in conventional stainless steels, such as improved strength and resistance to corrosion.

Duplex Flanges: Types and Prices

  1. Weld Neck Flanges: These flanges are designed to be butt-welded to a pipe. They are known for their high strength and durability, making them suitable for high-pressure and high-temperature applications. Prices for duplex weld neck flanges can range from $50 to $500 or more, depending on size and material grade.
  2. Slip-On Flanges: Slip-on flanges are easier to install and are ideal for low-pressure applications. Prices for duplex slip-on flanges typically start at $20 and can go up to $300 or more.
  3. Blind Flanges: These flanges are used to seal the end of a pipe or pressure vessel. Prices for duplex blind flanges generally range from $40 to $400, depending on size and material grade.
  4. Socket Weld Flanges: Socket weld flanges are designed for small-diameter, high-pressure applications. Prices for duplex socket weld flanges can vary between $30 and $300, depending on size and material grade.
  5. Threaded Flanges: Threaded flanges are used in low-pressure applications and can be easily assembled and disassembled. Prices for duplex threaded flanges typically start at $20 and can go up to $200 or more.

Duplex Fasteners: Types and Prices

  1. Duplex Bolts: Duplex bolts are used to fasten two or more components together securely. Duplex fasteners Prices for duplex bolts range from $1 to $10 per piece, depending on size, length, and material grade.
  2. Duplex Nuts: Duplex nuts are threaded fasteners used in conjunction with bolts to secure components. Prices for duplex nuts can vary from $0.50 to $5 or more per piece, depending on size and material grade.
  3. Duplex Washers: Washers distribute the load of a fastener and help prevent damage to the material being fastened. Prices for duplex washers generally range from $0.10 to $2 or more per piece, depending on size and material grade.
  4. Duplex Screws: Duplex screws are versatile fasteners used in various applications. Prices for duplex screws can start at $0.50 and go up to $5 or more per piece, depending on size, length, and material grade.


Duplex stainless steel flanges and fasteners are essential components in many industries, providing superior corrosion resistance and strength. When considering these components for your projects, it’s crucial to be aware of the various types and their associated prices. Prices can vary significantly depending on factors such as size, material grade, and application. Therefore, it’s essential to consult with suppliers and manufacturers to get accurate pricing and ensure that you select the right duplex flanges and fasteners for your specific needs.

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