NC1253 Incoloy 27-7MO (Alloy 27-7MO, UNS S31277) plate/sheet

Incoloy 27-7MO (Alloy 27-7MO, UNS S31277) Plate/Sheet Description:

Inconel®, Incoloy® and Monel® are registered trademarks of the Special Metals Corporation and its subsidiaries.
The Incoloy alloy 27-7MO is a superaustenitic stainless steel containing 7% molybdenum. It demonstrates improved corrosion resistance in most environments relative to superaustenitic steels with 6% molybdenum. In many environments Incoloy 27-7MO (UNS S31277) exhibits resistance approaching that of higher alloy materials such as INCONEL alloys 625, 22 and C-276. Incoloy 27-7MO products typically contain 27% nickel, 22% chromium, 7.2% molybdenum and 0.34% nitrogen. The alloy exhibits high resistance to pitting and crevice corrosion due to its molybdenum, chromium and nitrogen content. Nickel, nitrogen and molybdenum confer resistance to reducing agents, whilst a high chromium content confers resistance to oxidising agents. Incoloy 27-7MO finds application in mixed acid environments, particularly those containing both oxidising and reducing acids.
Other trade names: Alloy 27-7MO, UNS S31277

Specifications for Incoloy Alloy 27-7MO Plate/Sheet:

Metal type: UNS S31277
Standard: ASTM A 240/ASME SA 240

Chemical Composition, %.

Applications for Incoloy 27-7MO:

Incoloy 27-7MO provides a combination of corrosion resistance, high strength and ease of fabrication. Therefore, it is used across multiple industries including environmental protection, energy generation, shipbuilding, chemical processing, pulp and paper production and the oil and gas industry.

1. Chemical Processing:
• The material is used in the chemical industry because it withstands aggressive chemical conditions.
2. Shipbuilding:
• It is used in ship construction where resistance to seawater and salt mist is required.
3. Pollution Control Facilities:
• The material is used in the construction of environmental protection facilities due to its resistance to corrosive gases and chemicals.
4. Pulp and Paper Industry:
• It is utilised in components for pulp and paper processing and withstands corrosive conditions encountered in manufacturing processes.
5. Oil and Gas Extraction:
• It is applied in oil and gas extraction facilities where corrosion resistance contributes to the longevity of installations.