 
				
			Semi- jacketed type is used when the outside of the gasket must be exposed to the pressure created by the fluid. The inner filler is surrounded by a piece of metal, but the outer filler is exposed as is, and it is manufactured by 1 to 3-point welding.
| Material | m | y | 
|---|---|---|
| Soft aluminum | 3.25 | 5,500psi | 
| Soft copper or brass | 3.50 | 6,500psi | 
| Iron or soft steel | 3.75 | 7,600psi | 
| Monel | 3.50 | 8,000psi | 
| 4%~6% chrome | 3.75 | 9,000psi | 
| Stainless steels and nickel-base alloys | 3.75 | 9,000psi | 





