COPPER GASKET

Soft Metal Sealing for Precision & Reliability

Overview

Copper Gaskets are soft-metal gaskets known for their exceptional malleability, high thermal conductivity, and corrosion resistance. They are widely used in applications where leak-proof sealing is required at elevated temperatures and pressures, especially in vacuum systems, hydraulics, and engines.

Key Features

Made from 99.9% pure copper (or custom alloys)
Excellent thermal & electrical conductivity
High conformability to mating surfaces
Reusable in some non-critical environments
Resistant to corrosion, chemicals, and oxidation
Suitable for soft sealing on metal-to-metal joints

Material Specifications

Material & Description

Pure Copper: Standard – ASTM B152 (Grade C11000)
Annealed Copper: Soft for better deformability
Copper Alloys: On request – Brass, Bronze, etc.

Optional surface finishes available – polished, brushed, or tin-plated

Technical Details

Standard Thickness: 0.5 mm to 3 mm
Outer Diameter: As per custom or DIN/ANSI specs
Hardness: Annealed (soft) or Half-Hard
Temperature Resistance: Up to 500°C+
Vacuum Compatibility: Ideal for ultra-high vacuum (UHV) applications
Seal Type: Flat face, raised face, or custom profile

Applications

Vacuum chambers and UHV systems
Automotive and engine head sealing
Hydraulic & pneumatic systems
Heat exchangers & furnaces
Flanged joints in chemical & pharma plants
Cryogenic and thermal cycling environments

Frequently Asked Questions (FAQs)

Q: Why use copper over other gasket materials?
A: Copper is soft, easy to compress, and creates an effective seal without the need for excessive torque or sealing compounds.

Q: Can I reuse a copper gasket?
A: Yes, in low-pressure or non-critical uses – though re-annealing (softening by heating) is recommended before reuse.

Q: Do copper gaskets handle high pressure?
A: Yes, when matched with proper flange design and torque specs, copper can seal under high-pressure applications reliably.