Table below from ASME code gives a list of commonly used gasket materials and contact facings with suggested design values of m and Y that have generally proved satisfactory when using effective gasket seating width "b" as suggested in table UA-49.2 of ASME code.
The design value and other details given in this table are suggested only and are not mandatory.
| Gasket Design | Gasket Material | Gasket Factor "M" | Min. Design Seating Stress "Y" (psi) | |
|---|---|---|---|---|
| Self-Energizing types O Rings,Metallic,Elastomer other gasket types considered as self-sealing |
0 | 0 | ||
| Elastomers without fabric. Below 75 Shore Durometer 75 or higher Shore Durometer |
 |
0.50 1.00 |
0 200 |
|
| Elastomers with cotton fabric insertion | |
1.25 | 400 | |
| Vegetable fiber | |
1.75 | 1100 | |
| Spiral wound metal, non-asbestos filled |  |
Stainless steel or MONEL® | 3.00 | 10,000 |
| Corrugated metal, non-asbestos or Corrugated metal-jacketed, non-asbestos filled |
 |
Soft aluminum Soft copper or brass Iron or soft steel MONEL® or 4%-6% chrome Stainless Steel |
2.50 2.75 3.00 3.25 3.50 |
2,900 3,700 4,500 5,500 6,500 |
| Corrugated metal |  |
Soft aluminum Soft copper or brass Iron or soft steel MONEL® or 4%-6% chrome Stainless Steel |
2.75 3.00 3.25 3.50 3.75 |
3,700 4,500 5,500 6,500 7,600 |
| Flat metal-jacketed, non-asbestos filled |  |
Soft aluminum Soft copper or brass Iron or soft steel MONEL® 4%-6% chrome Stainless Steel |
3.25 3.50 3.75 3.50 3.75 3.75 |
5,500 6,500 7,600 8,000 9,000 9,000 |
| Grooved metal |  |
Soft aluminum Soft copper or brass Iron or soft steel MONEL® or 4%-6% chrome Stainless Steel |
3.25 3.50 3.75 3.75 4.25 |
5,500 6,500 7,600 9,000 10,100 |
| Solid flat metal | |
Soft aluminum Soft copper or brass Iron or soft steel MONEL® or 4%-6% chrome Stainless Steel |
4.00 4.75 5.50 6.00 6.50 |
8,800 13,000 18,000 21,800 26,000 |
| Ring joint |  |
Iron or soft steel MONEL® or 4%-6% chrome Stainless Steel |
5.50 6.00 6.50 |
18,000 21,800 26,000 |