The following is about R Type Ring Joint Gasket related, I hope to help you better understand R Type Ring Joint Gasket.
The R-Type ring gasket can be ordered to two different profiles, oval or octagonal in cross-sections. Both types have identical pitch diameter as the flange groove they correspond to. These gaskets are used in pressures up to 5,000 PSI. The octagonal type has a higher sealing coeffient than the oval, therefore being the better gasket of the two. The oval type is the only gasket that will fit a bottom radiused groove. Flanges with flat bottom v-grooves will accept either style. Gaskets that have been torqued initiating a metal-to-metal seal should be discarded and not reused.
Ring Joint Gasket Drawings:
Main materials parameters:
| Material | Maximum hardness BRINELL |
Temperature（ ℃ ） |
Abbreviations marker |
|
|
Brucellosis |
Rockwell |
|||
|
Soft Iron |
90 |
56 |
-60 500 |
D |
|
Low Carbon Steel |
120 |
68 |
-40～540 |
S |
|
304SS |
160 |
83 |
-250 540 |
304 |
|
304LSS |
160 |
83 |
-250 540 |
304L |
|
316SS |
160 |
83 |
-200 815 |
316 |
|
316LSS |
160 |
83 |
-200 815 |
316 |
|
321SS |
160 |
83 |
-200 870 |
321 |
|
347SS |
160 |
83 |
-200 870 |
347 |
| 410SS | 170 |
86 |
-40 850 |
410 |
|
5Cr-0.5Mo |
130 |
-29 650 |
||
|
Copper |
80 |
-100 315 |
||
|
Aluminum |
35 |
-200 425 |
||
|
Inconel 600 |
150 |
-100 1095 |
||
|
Incoloy 825 |
150 |
-100 1095 |
||
|
Monel 400 |
150 |
-100 760 |
||
|
Titanium |
215 |
-200 540 |
||
|
Nickel 200 - |
110 |
200 760 |
||
|
Hastelloy B2 |
230 |
-100 1095 |
||
|
Hastelloy C276 |
210 |
-100 1095 |
||
Standard：
R TYPE RING JOINT GASKET ARE MANUFACTURED IN ACCORDANCE WITH ASME B16.20 AND API 6A
