Super Duplex S31803 Ring Joint Gasket
Duplex S31803, also known as stainless steel grade 2205, is a standardized formulation that conforms to UNS specification regulations
Content
Duplex S31803 Stainless Steel Oval RTJ Gaskets - RTJ 302
Super duplex S31803 ring joint gasket has excellent oxidation resistance, outstanding performance in marine or sea water environments and it has low thermal expansion coefficients, high heat conductivity.Super duplex S31803 ring joint gasket is made of duplex S31803 and S31803 also known as stainless steel grade 2205, is a standardized formulation that conforms to UNS specification regulations. Its temperature range is typically listed as -50° to 300° C (-58° to 572° F). outside of this range, its performance characteristics degrade. Specifically, duplex S31803's micro-components experience precipitation with prolonged exposure to high temperatures, and ductility suffers with immersion in extremely cold environments.
Monel 400 Chemical Composition (%)
| UNS | Grade |
Ni |
C ≤ |
Mn ≤ | Si ≤ | S ≤ | N | Cr | Mo |
| S32205 | 31803 | 4.5 - 6.5 | 0.03 | 2 | 1 | 0.02 | 0.08 - 0.2 |
21 - 32 |
2.5 - 3.5 |
Mechanical Property of Super Duplex S31803
| Ultimate Tensile Strength (Mpa) | Elongation % |
Yield Strength MPa |
Density g/cm3 |
Hardness (HRC) |
| 810 | ≥ 25 | ≥ 550 | 8.0 | 35 |
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