RING JOINT GASKETS
DESCRIPTION
The metallic ring joint gaskets are manufactured according to the API 6A and ASME B 16.20 standards for application at elevated temperatures and pressures.
SHAPE AND CONSTRUCTION
The ring joint gaskets are produced in several shapes and sizes to meet the most demanding applications. Following table describes standard materials for ring joint gaskets:
STANDARD MATERIALS
| STANDARD MATERIALS RECOMMENDED BY THE ASME B16.20 | ||||
|---|---|---|---|---|
| Material Code | Max HV | Max HB | DIN Material No | ASTM |
| D | 56 | 90 | 1.1003 | Soft Iron |
| S | 68 | 12 | 1.0038 | Low CS |
| F5 | 72 | 130 | 1.7362 | 4-6 Cr ½ Mo |
| S410 | 86 | 170 | 1.4000 | AISI410 |
| S304 | 83 | 160 | 1.4301 | AISI 304 |
| S316 | 83 | 160 | 1.4401 | AISI 316 |
| S347 | 83 | 160 | 1.4550 | AISI 347 |
DIMENSIONS
Standard dimensions for ring joint gaskets used with flanges are shown in following table:
| STANDARDS FOR RING JOINT GASKETS USED WITH FLANGES | ||
|---|---|---|
| Flange Standard | Ring Joints Gaskets Standard | Ring Joints Gaskets Style |
| ASMEB 16.5 ASMEB 16.47 series A | ASMEB 16.20 API 6A | R |
| API 6B | ASMEB 16.20 API 6A | RX |
| API 6BX | API 6A | BX |
