The corrugated metal gasket shave been proven to be both reliable and cost-effective for the applicationon flange and heads where bolt loading is sufficient. Their operation principle is based on different degrees of hardness of adjacent materials. The sealing effect is produced by the constant load to which a gasket is exposed. They are used in applications, which require mechanical strength, thermal conductivity, as well as temperature and corrosion resistivity. They can be classified into flat, serrated and corrugated types, and are particularly useful when compressibility is not a factor or and where sufficient clamping force is available. Metal gaskets feature greater mechanical strength, better heat transfer and resistance to higher temperatures and pressures, and can offer advantages over the clad type gaskets in certain applications.
The corrugated metal gaskets with soft layer on both sides are used in low-pressure applications in large diameter flue gas ducts at high temperatures. The use of corrugated gaskets eliminates the problem of difficult handling with large non-metal gaskets used in those applications. They are suitable for gas pipes and valve caps, or wherever acids, oils and chemicals are found. They can be used atlower pressures and higher temperatures.
| Material |
ASTM |
DIN Material No. |
| Low Carbon Steel |
Soft iron |
1.1003 |
| Stainless steel |
AISI 304 |
1.4301 |
| Stainless steel |
AISI 316 |
1.4401 |
| Stainless steel |
AISI 321 |
1.4541 |
| Stainless steel |
AISI 316 Ti |
1.4571 |
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