Spiral Wound Gasket

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Gasket tape, also known as sealing tape or foam tape, is a flexible and compressible material used to create a seal between two mating surfaces. It typically consists of a foam or rubber substrate coated with adhesive on one or both sides. Gasket tape is available in various thicknesses, widths, and formulations to suit different sealing applications.

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Here's a detailed description of stainless steel gaskets:

1. Material Composition:

   • Stainless steel gaskets are primarily composed of stainless steel alloys, which typically include iron, chromium, nickel, and other alloying elements. These alloys impart corrosion resistance, mechanical strength, and thermal stability to the gasket.

2. Types of Stainless Steel Alloys:

   • Various grades of stainless steel alloys may be used in gasket manufacturing, with common grades including:
     • Austenitic stainless steels (e.g., 304, 316, 321) known for their corrosion resistance and versatility.
     • Martensitic stainless steels (e.g., 410, 420) offering higher strength and hardness.
     • Duplex stainless steels (e.g., 2205, 2507) providing a combination of corrosion resistance and strength.
     • Ferritic stainless steels (e.g., 430) known for their resistance to stress corrosion cracking and thermal expansion.

3. Construction:

   • Stainless steel gaskets may be manufactured using various fabrication techniques, including stamping, machining, or laser cutting, to achieve the desired shape, size, and thickness.
   • They can be solid metal gaskets with no filler material or spiral wound gaskets consisting of alternating layers of stainless steel and filler material (e.g., graphite or PTFE) wound together.

4. Features and Properties:

   • Corrosion Resistance: Stainless steel gaskets offer excellent resistance to corrosion, making them suitable for use in aggressive chemical environments, high-temperature applications, and marine or offshore installations.
   • High Temperature Resistance: Stainless steel alloys can withstand elevated temperatures without losing their mechanical properties, making them suitable for sealing applications in heat-intensive processes.