{"id":2612,"date":"2026-02-04T03:08:28","date_gmt":"2026-02-04T02:08:28","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?p=2612"},"modified":"2026-02-04T03:08:28","modified_gmt":"2026-02-04T02:08:28","slug":"inconel-alloy-grades","status":"publish","type":"post","link":"https:\/\/www.nickelcasting.com\/ja\/inconel-alloy-grades\/","title":{"rendered":"\u30a4\u30f3\u30b3\u30cd\u30eb\u5408\u91d1\u30b0\u30ec\u30fc\u30c9\u7dcf\u5408\u30ac\u30a4\u30c9"},"content":{"rendered":"<p data-path-to-node=\"5\">\u6e29\u5ea6\u304c\u6025\u4e0a\u6607\u3057\u3001\u8150\u98df\u6027\u8981\u7d20\u304c\u69cb\u9020\u7684\u5b8c\u5168\u6027\u3092\u8105\u304b\u3059\u3088\u3046\u306a\u904e\u9177\u306a\u74b0\u5883\u3067\u306f\u3001\u30a4\u30f3\u30b3\u30cd\u30eb\u307b\u3069\u5c0a\u656c\u3092\u96c6\u3081\u308b\u6750\u6599\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30a4\u30f3\u30b3\u30cd\u30eb\u5408\u91d1\u306e\u69d8\u3005\u306a\u30b0\u30ec\u30fc\u30c9\u306f\u3001\u9ad8\u6027\u80fd\u306a\u7528\u9014\u306e\u305f\u3081\u306b\u8a2d\u8a08\u3055\u308c\u305f\u30cb\u30c3\u30b1\u30eb-\u30af\u30ed\u30e0\u3092\u30d9\u30fc\u30b9\u3068\u3059\u308b\u8d85\u5408\u91d1\u3067\u3059\u300228Nickel\u3067\u306f\u3001\u9069\u5207\u306a\u30b0\u30ec\u30fc\u30c9\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u306f\u3001\u5358\u306b\u30b3\u30b9\u30c8\u3060\u3051\u3067\u306a\u304f\u3001\u822a\u7a7a\u5b87\u5b99\u3001\u5316\u5b66\u51e6\u7406\u3001\u6d77\u6d0b\u5de5\u5b66\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u30a4\u30f3\u30d5\u30e9\u306e\u5b89\u5168\u6027\u3068\u5bff\u547d\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u3067\u3042\u308b\u3068\u7406\u89e3\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<p data-path-to-node=\"5\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-2613\" src=\"http:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/02\/107.jpg\" alt=\"\u30a4\u30f3\u30b3\u30cd\u30eb\u5408\u91d1\u30b0\u30ec\u30fc\u30c9\u7dcf\u5408\u30ac\u30a4\u30c9\" width=\"1200\" height=\"655\" srcset=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/02\/107.jpg 1200w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/02\/107-300x164.jpg 300w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/02\/107-1024x559.jpg 1024w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/02\/107-768x419.jpg 768w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/02\/107-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<h3 data-path-to-node=\"6\">\u30a4\u30f3\u30b3\u30cd\u30eb\u5408\u91d1\u30b0\u30ec\u30fc\u30c9\u306e\u5316\u5b66\u3092\u7406\u89e3\u3059\u308b<\/h3>\n<p data-path-to-node=\"7\">The &#8220;secret sauce&#8221; of Inconel lies in its austenitic crystal structure. Most inconel alloy grades contain a high percentage of nickel, typically combined with chromium and iron. This combination creates a thick, stable, Passivating oxide layer when heated, which protects the metal from further attack. Unlike many metals that lose strength as they approach their melting points, Inconel maintains its mechanical properties across a vast thermal range, from cryogenic temperatures to well over <span aria-hidden=\"true\">1,000\u2218C<\/span>.<\/p>\n<h3 data-path-to-node=\"8\">\u30a4\u30f3\u30b3\u30cd\u30eb\u5408\u91d1\u306e\u4eba\u6c17\u30b0\u30ec\u30fc\u30c9\u3092\u6df1\u304f\u6398\u308a\u4e0b\u3052\u308b<\/h3>\n<p data-path-to-node=\"9\">\u5e02\u5834\u3092\u52b9\u679c\u7684\u306b\u30ca\u30d3\u30b2\u30fc\u30c8\u3059\u308b\u306b\u306f\u3001\u30a4\u30f3\u30b3\u30cd\u30eb\u5408\u91d1\u306e\u5404\u30b0\u30ec\u30fc\u30c9\u304c\u7279\u5b9a\u306e\u5fdc\u529b\u8981\u56e0\u306b\u5408\u308f\u305b\u3066\u8abf\u6574\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u73fe\u5728\u696d\u754c\u3067\u6700\u3082\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u54c1\u7a2e\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002.<\/p>\n<h4 data-path-to-node=\"10\">\u30a4\u30f3\u30b3\u30cd\u30eb600\uff1a\u8010\u71b1\u6027\u306e\u6a19\u6e96<\/h4>\n<p data-path-to-node=\"11\"><a href=\"https:\/\/www.nickelcasting.com\/ja\/%e3%83%8b%e3%83%83%e3%82%b1%e3%83%ab%e5%90%88%e9%87%91\/%e3%82%a4%e3%83%b3%e3%82%b3%e3%83%8d%e3%83%ab-%e3%83%8b%e3%83%83%e3%82%b1%e3%83%ab%e5%90%88%e9%87%91\/%e3%82%a4%e3%83%b3%e3%82%b3%e3%83%8d%e3%83%ab600\/\">\u30a4\u30f3\u30b3\u30cd\u30eb 600<\/a> is the &#8220;foundational&#8221; member of the family. It is primarily used for its resistance to oxidation and chloride-ion stress corrosion cracking. Because it maintains high strength at elevated temperatures, it is a staple in furnace components and chemical processing equipment.<\/p>\n<h4 data-path-to-node=\"12\">\u30a4\u30f3\u30b3\u30cd\u30eb625\u6d77\u6d0b\u304a\u3088\u3073\u822a\u7a7a\u5b87\u5b99\u7523\u696d\u306e\u4e3b\u529b\u88fd\u54c1<\/h4>\n<p data-path-to-node=\"13\">What sets 625 apart from other inconel alloy grades is the addition of molybdenum and niobium. These elements stiffen the alloy&#8217;s matrix, providing high strength without the need for heat treatment. Its fatigue strength and resistance to seawater make it the go-to choice for naval exhaust systems and underwater cabling.<\/p>\n<h4 data-path-to-node=\"14\">\u30a4\u30f3\u30b3\u30cd\u30eb718: \u9ad8\u5f37\u5ea6\u306e\u738b\u69d8<\/h4>\n<p data-path-to-node=\"15\">\u30a4\u30f3\u30b3\u30cd\u30eb\u5408\u91d1\u306e\u4e2d\u3067\u6700\u3082\u6c4e\u7528\u6027\u306e\u9ad8\u3044\u30b0\u30ec\u30fc\u30c9\u3092\u304a\u63a2\u3057\u306a\u3089\u3001718\u304c\u305d\u306e\u7b54\u3048\u3067\u3059\u3002718\u306f\u6790\u51fa\u786c\u5316\u578b\u5408\u91d1\u3067\u3001\u7279\u5b9a\u306e\u6642\u52b9\u51e6\u7406\u306b\u3088\u3063\u3066\u5f37\u5ea6\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u3067\u306e\u6e29\u5ea6\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u305f\u3081\u3001\u30b8\u30a7\u30c3\u30c8\u30a8\u30f3\u30b8\u30f3\u3084\u9ad8\u901f\u6a5f\u4f53\u90e8\u54c1\u306b\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002 <span aria-hidden=\"true\">700\u2218C<\/span> \u9a5a\u7570\u7684\u306a\u5f15\u5f35\u5f37\u5ea6\u3068\u885d\u6483\u5f37\u5ea6\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u3002.<\/p>\n<h3 data-path-to-node=\"16\">\u30a4\u30f3\u30b3\u30cd\u30eb\u5408\u91d1\u4e3b\u8981\u30b0\u30ec\u30fc\u30c9\u306e\u6bd4\u8f03<\/h3>\n<p data-path-to-node=\"17\">\u3053\u308c\u3089\u306e\u7d20\u6750\u306e\u3069\u3061\u3089\u3092\u9078\u3076\u304b\u306f\u3001\u5316\u5b66\u7684\u30d5\u30c3\u30c8\u30d7\u30ea\u30f3\u30c8\u3068\u4e3b\u306a\u7528\u9014\u3092\u4e26\u3079\u3066\u6bd4\u8f03\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u6b21\u306e\u8868\u306f\u3001\u4e3b\u306a\u76f8\u9055\u70b9\u3092\u307e\u3068\u3081\u305f\u3082\u306e\u3067\u3042\u308b\uff1a<\/p>\n<table data-path-to-node=\"18\">\n<thead>\n<tr>\n<td>\u30b0\u30ec\u30fc\u30c9<\/td>\n<td>\u4e3b\u306a\u5408\u91d1\u5143\u7d20<\/td>\n<td>\u4e3b\u306a\u7279\u5fb4<\/td>\n<td>\u4e00\u822c\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30a4\u30f3\u30b3\u30cd\u30eb 600<\/td>\n<td>Ni\u3001Cr\u3001Fe<\/td>\n<td>\u8010\u9ad8\u6e29\u9178\u5316\u6027<\/td>\n<td>\u71b1\u51e6\u7406\u30de\u30c3\u30d5\u30eb\u3001\u30d2\u30fc\u30bf\u30fc<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.nickelcasting.com\/ja\/%e3%83%8b%e3%83%83%e3%82%b1%e3%83%ab%e5%90%88%e9%87%91\/%e3%82%a4%e3%83%b3%e3%82%b3%e3%83%8d%e3%83%ab-%e3%83%8b%e3%83%83%e3%82%b1%e3%83%ab%e5%90%88%e9%87%91\/inconel-601\/\">\u30a4\u30f3\u30b3\u30cd\u30eb601<\/a><\/td>\n<td>Ni\u3001Cr\u3001Al<\/td>\n<td>\u512a\u308c\u305f\u8010\u30b9\u30dd\u30fc\u30ea\u30f3\u30b0\u6027<\/td>\n<td>\u30ac\u30b9\u30bf\u30fc\u30d3\u30f3\u90e8\u54c1<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.nickelcasting.com\/ja\/%e3%83%8b%e3%83%83%e3%82%b1%e3%83%ab%e5%90%88%e9%87%91\/%e3%82%a4%e3%83%b3%e3%82%b3%e3%83%8d%e3%83%ab-%e3%83%8b%e3%83%83%e3%82%b1%e3%83%ab%e5%90%88%e9%87%91\/%e3%82%a4%e3%83%b3%e3%82%b3%e3%83%8d%e3%83%ab625\/\">\u30a4\u30f3\u30b3\u30cd\u30eb625<\/a><\/td>\n<td>Ni\u3001Cr\u3001Mo\u3001Nb<\/td>\n<td>\u9ad8\u3044\u75b2\u52b4\u5f37\u5ea6\u3068\u8010\u5b54\u98df\u6027<\/td>\n<td>\u6d77\u6d0b\u5de5\u5b66\u3001\u30d5\u30ec\u30a2\u30b9\u30bf\u30c3\u30af<\/td>\n<\/tr>\n<tr>\n<td>\u30a4\u30f3\u30b3\u30cd\u30eb718<\/td>\n<td>Ni\u3001Cr\u3001Fe\u3001Nb\u3001Mo<\/td>\n<td>\u512a\u308c\u305f\u30af\u30ea\u30fc\u30d7\u7834\u65ad\u5f37\u5ea6<\/td>\n<td>\u30b8\u30a7\u30c3\u30c8\u30a8\u30f3\u30b8\u30f3\u3001\u6db2\u4f53\u30ed\u30b1\u30c3\u30c8\u71c3\u6599<\/td>\n<\/tr>\n<tr>\n<td>\u30a4\u30f3\u30b3\u30cd\u30eb X-750<\/td>\n<td>Ni\u3001Cr\u3001Ti\u3001Al<\/td>\n<td>\u30ea\u30e9\u30af\u30bc\u30fc\u30b7\u30e7\u30f3\u3078\u306e\u62b5\u6297<\/td>\n<td>\u30b9\u30d7\u30ea\u30f3\u30b0\u3001\u30ac\u30b9\u30bf\u30fc\u30d3\u30f3\u30ed\u30fc\u30bf\u30fc<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 data-path-to-node=\"19\">\u30a4\u30f3\u30b3\u30cd\u30eb\u5408\u91d1\u30b0\u30ec\u30fc\u30c9\u306e\u9078\u629e\u306b\u304a\u3044\u3066\u7cbe\u5ea6\u304c\u91cd\u8981\u306a\u7406\u7531<\/h3>\n<p data-path-to-node=\"20\">At 28Nickel, we often encounter clients who struggle with &#8220;over-engineering.&#8221; While it might be tempting to always choose Inconel 718 for its strength, it is significantly harder to machine than Inconel 600. Miscalculating the specific requirements of your project can lead to unnecessary costs or premature component failure.<\/p>\n<p data-path-to-node=\"21\">\u30a4\u30f3\u30b3\u30cd\u30eb\u5408\u91d1\u30b0\u30ec\u30fc\u30c9\u306e\u591a\u69d8\u6027\u306b\u3088\u308a\u3001\u307b\u307c\u3059\u3079\u3066\u306e\u8150\u98df\u6027\u307e\u305f\u306f\u71b1\u7684\u8ab2\u984c\u306b\u5bfe\u3059\u308b\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u304c\u3042\u308a\u307e\u3059\u3002\u88fd\u85ac\u5de5\u5834\u306e\u5f37\u9178\u6027\u74b0\u5883\u3067\u3042\u308c\u3001\u6df1\u6d77\u77f3\u6cb9\u6398\u524a\u65bd\u8a2d\u306e\u9ad8\u5727\u9700\u8981\u3067\u3042\u308c\u3001\u7279\u5b9a\u306e\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u5316\u5b66\u306f\u3001\u4ed6\u306e\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u304c\u6ec5\u3073\u308b\u3088\u3046\u306a\u5834\u6240\u3067\u3082\u6210\u529f\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h3 data-path-to-node=\"22\">\u30a4\u30f3\u30b3\u30cd\u30eb\u5229\u7528\u306e\u5c06\u6765\u52d5\u5411<\/h3>\n<p data-path-to-node=\"23\">As additive manufacturing (3D printing) continues to evolve, we are seeing a surge in the use of powdered inconel alloy grades. Inconel 718, in particular, has become a favorite for 3D-printed aerospace components, allowing for complex geometries that were previously impossible to cast or machine. This technological leap is making these high-cost alloys more efficient to use, as &#8220;buy-to-fly&#8221; ratios improve and material waste is minimized.<\/p>\n<hr data-path-to-node=\"24\" \/>\n<h3 data-path-to-node=\"25\">\u95a2\u9023Q&amp;A<\/h3>\n<p data-path-to-node=\"26\">Q1: \u30a4\u30f3\u30b3\u30cd\u30eb\u5408\u91d1\u306e\u3069\u306e\u30b0\u30ec\u30fc\u30c9\u304c\u6eb6\u63a5\u306b\u6700\u9069\u3067\u3059\u304b\uff1f<\/p>\n<p data-path-to-node=\"26\">A: \u30a4\u30f3\u30b3\u30cd\u30eb625\u306f\u3001\u4e00\u822c\u306b\u6700\u3082\u6eb6\u63a5\u3057\u3084\u3059\u3044\u6750 \u6599\u3068\u3055\u308c\u3066\u3044\u308b\u3002\u53d6\u308a\u6271\u3044\u306b\u6ce8\u610f\u3057\u306a\u3044\u3068\u71b1\u5f71\u97ff\u90e8\u306b\u5272\u308c\u304c\u751f\u3058\u3084\u3059\u3044718\u3068\u306f\u7570\u306a\u308a\u3001625\u306f\u6eb6\u63a5\u6027\u306b\u512a\u308c\u3001\u7570\u7a2e\u91d1\u5c5e\u306e\u30af\u30e9\u30c3\u30c9\u3084\u63a5\u5408\u306b\u30d5\u30a3\u30e9\u30fc\u30e1\u30bf\u30eb\u3068\u3057\u3066\u3088\u304f\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002.<\/p>\n<p data-path-to-node=\"27\">Q2: \u30a4\u30f3\u30b3\u30cd\u30eb\u5408\u91d1\u306e\u30b0\u30ec\u30fc\u30c9\u306f\u30e2\u30cd\u30eb\u3068\u3069\u3046\u9055\u3046\u306e\u3067\u3059\u304b\uff1f<\/p>\n<p data-path-to-node=\"27\">A: \u4e3b\u306a\u9055\u3044\u306f\u5408\u91d1\u5143\u7d20\u306b\u3042\u308a\u307e\u3059\u3002\u30a4\u30f3\u30b3\u30cd\u30eb\u304c\u9ad8\u6e29\u30fb\u9178\u5316\u74b0\u5883\u7528\u306b\u8a2d\u8a08\u3055\u308c\u305f\u30cb\u30c3\u30b1\u30eb\u30fb\u30af\u30ed\u30e0\u5408\u91d1\u3067\u3042\u308b\u306e\u306b\u5bfe\u3057\u3001\u30e2\u30cd\u30eb\u306f\u4f4e\u6e29\u3067\u306e\u6d77\u6c34\u3084\u9178\u306b\u5bfe\u3059\u308b\u9ad8\u5f37\u5ea6\u8010\u6027\u7528\u306b\u8a2d\u8a08\u3055\u308c\u305f\u30cb\u30c3\u30b1\u30eb\u30fb\u9285\u5408\u91d1\u3067\u3059\u3002.<\/p>\n<p data-path-to-node=\"28\">Q3: \u30a4\u30f3\u30b3\u30cd\u30eb718\u306f\u78c1\u6027\u3067\u3059\u304b\uff1f<\/p>\n<p data-path-to-node=\"28\">A: \u30a4\u30f3\u30b3\u30cd\u30eb718\u306f\u3001\u4ed6\u306e\u9ad8\u30cb\u30c3\u30b1\u30eb\u30a4\u30f3\u30b3\u30cd\u30eb\u5408\u91d1\u3068\u540c\u69d8\u3001\u6a19\u6e96\u7684\u306a\u6761\u4ef6\u4e0b\u3067\u306f\u975e\u78c1\u6027\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u78c1\u6c17\u5e72\u6e09\u3092\u907f\u3051\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u7279\u6b8a\u306a\u96fb\u5b50\u6a5f\u5668\u3084\u8a08\u6e2c\u6a5f\u5668\u306b\u6700\u9069\u3067\u3059\u3002.<\/p>","protected":false},"excerpt":{"rendered":"<p>When it comes to extreme environments\u2014where temperatures soar and corrosive elements threaten structural integrity\u2014few materials command as much respect as Inconel. Developed to withstand conditions that would cause ordinary steel to fail, the various inconel alloy grades represent a family of nickel-chromium-based superalloys designed for high-performance applications. At 28Nickel, we understand that selecting the right grade is not just about cost; it is about ensuring the safety and longevity of critical infrastructure in aerospace, chemical processing, and marine engineering. Understanding the Chemistry of Inconel Alloy Grades The &#8220;secret sauce&#8221; of Inconel lies in its austenitic crystal structure. Most inconel alloy grades contain a high percentage of nickel, typically combined with 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it comes to extreme environments\u2014where temperatures soar and corrosive elements threaten structural integrity\u2014few materials command as much respect as Inconel. Developed to withstand conditions that would cause ordinary steel to fail, the various inconel alloy grades represent a family of nickel-chromium-based superalloys designed for high-performance applications. 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