Back
AT811-AT816 Ring Joint Metal Gaskets
Ring Joint Metal Gasket is manufactured by machining from an after
forging and heat treatment metal blank. The sealing surface is a line or
a regular shape,giving excellent rigidity and strength to the product
which is well suitable for high-pressure steam,gas and solvent condition
in high-pressure vessel,valve and reactor.The most common
industry product is R type Ring Joint Metallic Gasket which is
classified into oval style and octagonal style according to their
crosssections. There are various standards but almost all the standards
have similar dimensions so that Ring Joint MetalGaskets could be
universal.RX and BX types are the improved generations of Ring Joint
Metal Gaskets. The maximumoperating pressures are 2500PSI(17MPa)and
15000PSI(100MPa)for RX and BX,respectively.The Lens type could beused
over 300MPa.
表8：
| 编号 | 名称 | 剖面 |
| AT811 | R系例金属椭圆垫 |  |
| AT812 | R系例金属八角垫 |  |
| AT813 | RX系例高压型金属环垫 |  |
| AT814 | BX系例高压型金属环垫 |  |
| AT815 | 三角型金属环垫 |  |
| AT816 | 透镜型金属环垫 |  |
表9：金属环垫材料及部分特性
| 材料 | 硬度≦ （HB） | 使用温度 | ||
| 最低（℃） | 最高（℃） | |||
| 低碳钢类 | 软铁 | 90 | -60 | 500 |
| 08 | 120 | -40 | 540 | |
| 10 | 120 | -40 | 540 | |
| 不锈钢 | 304 | 160 | -250 | 540 |
| 304L | 160 | -250 | 540 | |
| 316 | 160 | -200 | 815 | |
| 316L | 160 | -200 | 815 | |
| 410 | 160 | -40 | 850 | |
| 321 | 160 | -200 | 870 | |
| 347 | 160 | -200 | 870 | |
| 合金钢 | 5Cr0.5Mo(F5) | 130 | -30 | 650 |
| 9Cr1Mo | 150 | -30 | 650 | |
| 镍基合金 | Inconel600 | 150 | -100 | 1095 |
| Inconel825 | 150 | -100 | 1095 | |
| Inconel625 | 165 | -100 | 1095 | |
| Nickel 200 | 110 | -200 | 760 | |
| Hastelloy B2 | 200 | -100 | 1095 | |
| Hastelloy C276 | 180 | -100 | 1095 | |
| Hastelloy C22 | 180 | -100 | 1000 | |
| 镍铜合金 | Monel 400 | 150 | -100 | 760 |
| 有色金属 | Copper（铜） | 80 | -100 | 315 |
| Aluminum（铝） | 35 | -200 | 425 | |
| 其它金属 | Titanium（钛） | 180 | -200 | 540 |
