UNS S21800 Nitronic 60 Pipe Hydrogen Annealing Treatment For Liquefied Gas Production
(UNS S21800 )Nitronic 60 alloys Stainless Steel Pipe
Nitronic 60 (UNS S21800, Alloy 218)
| UNS | AISI/ASTM |
| S21800 | Alloy218 |
Nitronic 60 Chemical composition:
| Alloy | % | Ni | Cr | Fe | C | Mn | Si | N | P | S |
| Nitronic 50 | Min. | 8 | 16 | 59 | 7 | 3.5 | 0.08 | |||
| Max. | 9 | 18 | 66 | 0.1 | 9 | 4.5 | 0.18 | 0.04 | 0.03 |
Nitronic 60 Physical properties
| Density | 8.0g/cm3 |
| Melting point | 1375°C |
Nitronic 60 Alloy minimum mechanical properties in the room temperature
| Alloy status |
Tensile strength Rm N/mm² |
Yield strength RP0.2 N/mm² |
Elongation A5 % |
Brinell hardness HB |
| Solution treatment | 600 | 320 | 35 | ≤100 |
Nitronic 60 Characteristic
Nitronic 60 Stainless Steel provides a significantly lower cost way to fight galling and wear compared with cobalt-bearing and high nickel alloys. Its uniform corrosion resistance is better than type 304 in most media. In Nitronic 60 ,chloride pitting is superior to Type 316.
Yield strength at room temperature is nearly twice that of 304 and 316.
Nitronic 60 provides excellent high temperature oxidation resistance and low-temperature impact resistance.
Nitronic 60 Application field:
Used extensively in the Power, Chemical, Petrochemical, Food and Oil & Gas industries with an array of uses including expansion joint wear plates, pump wear rings, bushings, process valve stems, seals and logging equipment.
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