{"id":35245,"date":"2025-05-08T13:49:07","date_gmt":"2025-05-08T17:49:07","guid":{"rendered":"https:\/\/development.centralwire.com\/?page_id=35245"},"modified":"2025-05-08T15:23:50","modified_gmt":"2025-05-08T19:23:50","slug":"inconel-x750","status":"publish","type":"page","link":"https:\/\/development.centralwire.com\/it\/inconel-x750\/","title":{"rendered":"Inconel\u00ae X750"},"content":{"rendered":"
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Learn about our high-performance Nickel-Chromium Alloy, Inconel\u00ae X750. Used Primarily in Aerospace & the Oil & Gas Industry.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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X750 Overview<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Often referred to as\u00a0Inconel\u00ae\u00a0Alloy X-750, this high-performance austenitic nickel-chromium alloy is made precipitation-hardenable by the addition of aluminum and titanium. It has good resistance to corrosion and oxidation along with high tensile and creep-rupture properties at high temperatures. For extended applications that require high strength at high temperatures,\u00a0Alloy X750\u00a0may require a solution treatment, with air cooling between intermediate and final aging.<\/p>

Inconel\u00ae\u00a0X750 displays excellent workability, including machinability and welding.\u00a0 Alloy X750 has excellent relaxation resistance, good elevated temperature strength properties to 1300\u00baF (700\u00b0C), and oxidation resistance to 1800\u00baF (983\u02daC).<\/p>

Alloy X750 is resistant to a wide variety of industrial corrosives under both oxidizing and reducing conditions, while also displaying excellent resistance to chloride stress corrosion cracking in fully age-hardened conditions.<\/p><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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X750 Composition<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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<\/td>
\nC<\/th>		Mn<\/th>Si<\/th>S<\/th>Cr<\/th>Ni<\/th>Cb (Nb)<\/th>Ti<\/th>Al<\/th>Fe<\/th>Co<\/th>Ta<\/th>Cu<\/th>\n<\/tr>\n<\/thead>\n
Min<\/td><\/td><\/td><\/td><\/td>14<\/td>70<\/td>0.7<\/td>2.25<\/td>0.4<\/td>5<\/td><\/td><\/td><\/td>\n<\/tr>\n
Max<\/td>0.08<\/td>1<\/td>0.5<\/td>0.01<\/td>17<\/td><\/td>1.2<\/td>2.75<\/td>1<\/td>9<\/td>1<\/td>0.05<\/td>0.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Industry Standards<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Commercial applications of Alloy X750 are governed by a range of established industry standards to ensure quality, consistency, and performance in demanding environments. Key specifications include\u00a0AMS 5698<\/strong>,\u00a0AMS 5699<\/strong>,\u00a0NACE MR0175 (ISO 15156-3)<\/strong>,\u00a0NACE MR0103 (ISO 17945)<\/strong>,\u00a0ASTM B637<\/strong>, and\u00a0MIL-DTL-24493<\/strong>, covering various aspects of material properties, corrosion resistance, and heat treatment requirements.<\/p>

For A<\/b>erospace applications<\/strong>, X750 must meet the stricter requirements of\u00a0AMS 5678G<\/strong>, which introduces additional qualification tests beyond standard specifications. This standard mandates further control of the alloy\u2019s\u00a0microstructure and mechanical properties in the final drawn wire<\/strong>, ensuring it meets the rigorous performance demands of aerospace components, including high-temperature and high-stress environments.<\/p>

Applicable Specifications for Wire & Bar:<\/strong>\u00a0AMS 5698, AMS 5699, NACE MR0175 (ISO 15156\u20103), NACE MR0103 (ISO 17945), ASTM B637, MIL\u2010DTL\u201024493<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Microstructural Aspects\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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It has been reported that the SCC resistance of Inconel X750 can be improved by direct aging in the precipitation regime of 704\u00b0C to 8710\u00b0C. Therefore, the microstructural changes that occur when Inconel X750 is thermally treated between 7040\u00b0C and 8710\u00b0C for up to 200 hours following a 2-hour solution anneal at 10750\u00b0C, 11490\u00b0C, or 12040\u00b0C has been studied.<\/p>

The coarsening kinetics of the \u03b3\u2019 particle growth obeyed the time-law prediction of Lipshitz-Slazor-Wagner theory of diffusion controlled growth at all aging temperatures. The \u03b3\u2019 precipitate lost coherency by the nucleation of dislocation loops within the precipitate, the interaction of dislocation at the interface and attraction of matrix dislocations to the particle\/matrix interface.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Applicazioni\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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With Alloy X750\u2019s excellent relaxation resistance it is useful for applications such as high-temperature springs and bolts. Alloy X750 is commonly used in:<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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