ANSI B16.5-1973、JPI-75-15-70、GB 699、GB1220、JB755、HG20633-9
KXT-G1840 lens ring joints' highest pressure used is 3000atm,they have been used on pipe flanges in synthesizing line of ammonia and methand at high pressure and high temperature,in high pressure polymerizing line of polyethylene at 3000 atm.
The material of the oval ring jont gasket must be 15~20HB lower than the hardness of flange,and this kind of gaskets is non-recyclable.
The cross section
|
Material |
Maximum Hardness |
Temperature（ ℃ ） |
Abbreviations |
|
|
Brinell |
Rockwell“B”Grade |
|||
|
Soft Iron |
90 |
56 |
-60～500 |
D |
|
Low Carbon Steel |
120 |
68 |
-40～540 |
S |
|
SS304 |
160 |
83 |
-250～540 |
304 |
|
SS304L |
160 |
83 |
-250～540 |
304L |
|
SS316 |
160 |
83 |
-200～815 |
316 |
