Nickel-molybdenum-chromium alloys

Nickel-chromium alloys, 77 100-101 dental applications, 8 308, 310 Nickel-chromium-iron alloys, 73 519, 522 Nickel-chromium-molybdenum alloy C, in galvanic series, 7 805t... [Pg.619]

Explosively clad metals, of which Deta-Clad4 is an example, are used mostly for small items such as tube sheets and heads for small heat exchangers or vessels. It is usually not economical for large surfaces or complex shapes. Nickel-chromium-molybdenum alloys and some other expensive metals can be applied to carbon steel by explosive bonding. [Pg.108]

Nickel-chromium-molybdenum alloys are used in reactor vessels in the production of acetic acid. These alloys are cost-effective compared to Ni-Cr stainless steels and have good resistance to oxidizing corrosive media Ni-Mo alloys have good resistance to reducing media. Molybdenum together with the chromium stabilizes the passive film in the presence of chlorides and is particularly effective in increasing resistance to pitting and crevice corrosion. [Pg.297]

Figure 6.5 illustrates how the presence of an oxidizing agent affects the observed polarization behavior of a metal. It shows the polarization curves of a nickel-chromium-molybdenum alloy in sulfuric acid, with and without ferric sulfate added... [Pg.230]

Nickel-copper and nickel-chromium-molybdenum alloys are the nickel-base alloys that are t5fpically used in seawater. The nickel-copper alloys have good corrosion resistance in high velocity seawater, but do exhibit localized corrosion in quiescent seawater [79]. Alloy 625, a nickel-chromium-molybdenum alloy, is susceptible to crevice corrosion in both quiescent and flow conditions [97-700]. Other nickel-chromium-molybdenum alloys, such as Alloys C-276, C-22, 59 and 686 have increased seawater crevice corrosion resistance as compared to Alloy 625 [97,98],... [Pg.376]

Klein, P. A., Ferrara, R. J., and Kain, R. M., Crevice Corrosion of Nickel-Chromium-Molybdenum Alloys in Natural and Chlorinated Seawater, Paper 112, CORROSION/89, NACE International, Houston, TX, 1989. [Pg.378]

Nickel-chromium-molybdenum alloys - Nickel-copper alloys I 67... [Pg.67]

Nickel-chromium-molybdenum alloys Nickel-copper alloys... [Pg.339]

Nickel-chromium alloys 56 Nickel-chromium-iron alloys (without Mo) 56 Nickel-chromium-molybdenum alloys 67 Nickel-copper alloys 67 Nickel-molybdenum alloys 68 Zinc 68 Bibliography 69... [Pg.413]

Nickel-chromium alloys 262 Nickel-chromium-iron alloys (without Mo) 262 Nickel-chromium-molybdenum alloys 262 Nickel-copper alloys 263 Nickel-molybdenum alloys 270 Other nickel alloys 270 Zinc 270 Bibliography 273... [Pg.414]

Ferritic chromium steels with < 13 % Cr 320 Ferritic chromium steels with > 13 % Cr 320 High-alloy multiphase steels 320 Ferritic/pearlitic-martensitic steels 320 Ferritic-austenitic steels/duplex steels 320 Austenitic CrNi steels 323 Austenitic CrNiMo(N) steels 323 Austenitic CrNiMoCu(N) steels 323 Nickel-chromium alloys 339 Nickel-chromium-iron alloys (without Mo) 339 Nickel-chromium-molybdenum alloys 339 Nickel-copper alloys 339 Zinc 343 Bibliography 344... [Pg.415]

Hastelloy alloy C-22 is a versatile nickel-chromium-molybdenum alloy with better overall corrosion resistance than other nickel-chromium-molybdenum alloys, including C-276, C-4, and alloy 625. The chemical composition is shown in Table 15.12. [Pg.264]

Nickel-chromium-molybdenum alloys offer excellent corrosion resistance and good mechanical properties over a wide range of enviromnents and temperatures. CW2M, ffie cast version of Hastelloy C, is the workhorse of the group. Castings should not be called "Hastelloy." The properties of the different Hastelloy alloys vary widely in specific applications. Disaster can result from use of the wrong grade. [Pg.281]

Nickel-chromium-molybdenum alloys Hastelloy C N10002... [Pg.282]

Haynes Stellite nickel-chromium-molybdenum alloy... [Pg.412]

The stainless steels (types 303, 316, and 316LVM) as well as the cobalt-nickel-chromium-molybdenum alloy MP35N are protected from corrosion by a thin passivation layer that develops when exposed to atmospheric oxygen and which forms a barrier to further reaction. In the case of stainless steel, this layer consists of iron oxides, iron hydroxides, and chromium oxides. These metals inject charge by reversible oxidation and reduction of the passivation layers. A possible problem with these metals is that if the electrode potential becomes too positive... [Pg.118]

The nickel-chromium-molybdenum alloys also show higher resistance to uncontaminated HCl. For example, alloys C-276, 625, and C-22 show very good resistance to dilute HCl at elevated temperatures and to a wide range of HCl concentrations at ambient temperature. The... [Pg.678]

Water environments can also have a variety of compositions and corrosion characteristics. Freshwater normally contains dissolved oxygen as well as minerals, several of which account for hardness. Seawater contains approximately 3.5% salt (predominantly sodium chloride), as well as some minerals and organic matter. Seawater is generally more corrosive than freshwater, frequently producing pitting and crevice corrosion. Cast iron, steel, aluminum, copper, brass, and some stainless steels are generally suitable for freshwater use, whereas titanium, brass, some bronzes, copper-nickel alloys, and nickel-chromium-molybdenum alloys are highly corrosion resistant in seawater. [Pg.707]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...