Nominal Composition (Mass %) and Physical Properties
Ni | Cr | Mo | C | Nb+Ta | Fe | Others | Hardness | Density | Melting Range |
Base | 21.5 | 9 | 0.1 max | 3.7 | 5 max | Si, Mn, Al, Ti | 25 HRC max | 8.42 g/cm3 0.304 lb/in3 |
1290-1350ºC 2354-2462ºF |
Ni | Cr | Mo | C | Nb+Ta | Fe | Others | Hardness | Density | Melting Range |
Base | 21.5 | 9 | 0.1 max | 3.7 | 5 max | Si, Mn, Al, Ti | 25 HRC max | 8.42 g/cm3 0.304 lb/in3 |
1290-1350ºC 2354-2462ºF |
Nistelle nickel-based alloys are designed primarily for high corrosion resistance. They have excellent high-temperature strength, resistance to oxidizing and/or reducing acids (depending on the grade) and are readily machinable.
Nistelle 625 is a nickel-chromium-molybdenum alloy with an addition of niobium that acts with the molybdenum to stiffen the alloy’s matrix, thereby providing high strength without a strengthening heat treatment. The alloy resists a wide range of severely corrosive environments and is especially resistant to pitting and crevice corrosion. It has excellent high-temperature oxidation and corrosion properties. Nistelle 625 is readily manufactured and fabricated by common industrial practices and has excellent weld qualities.
Nistelle 625 has been widely used in a range of high-temperature aerospace, chemical process, and power industry applications. As a low-temperature corrosion-resistant material, it has been used in the chemical industry, marine industry and in pollution-control equipment. It is widely specified for use in seawater and contaminated seawater environments.
SPECIFICATION | PRODUCT FORM |
AWS 5.14 ASTM A494 CW6MC UNS N26625 |
Powder, Casting |
AMS 5401 | Casting (Vacuum) |
AMS 5402 | Casting (Air Melt) |
Models
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