{"id":7534,"date":"2025-03-07T17:40:17","date_gmt":"2025-03-07T15:40:17","guid":{"rendered":"https:\/\/mfinox.com\/washer-inconel-718-screws-and-bolts-the-best-solution-for-extreme-applications\/"},"modified":"2025-08-28T12:54:26","modified_gmt":"2025-08-28T10:54:26","slug":"washer-inconel-718-screws-and-bolts-the-best-solution-for-extreme-applications","status":"publish","type":"post","link":"https:\/\/mfinox.com\/en\/washer-inconel-718-screws-and-bolts-the-best-solution-for-extreme-applications\/","title":{"rendered":"Screws and Bolts in INCONEL\u00ae 718: the best solution for extreme applications"},"content":{"rendered":"

The Qualities of INCONEL\u00ae 718 and its use in the manufacture of screws, nuts, tie rods and studs<\/strong><\/h3>\n

INCONEL\u00ae 718<\/a> is a nickel-chromium-based superalloy characterized by high mechanical strength, excellent corrosion resistance and the ability to maintain mechanical properties even at elevated temperatures. These characteristics make it an ideal material for the production of fastening systems such as screws, nuts, tie rods and studs used in aerospace, energy, chemical and automotive applications.<\/p>\n

Properties and Advantages for the use of screws, tie rods, nuts and studs in INCONEL\u00ae 718<\/strong><\/h3>\n
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  1. High mechanical strength<\/strong> – INCONEL\u00ae 718<\/a> can achieve tensile strength values in excess of 1300 MPa following specific heat treatments.<\/li>\n
  2. Corrosion and oxidation<\/strong> resistance – Excellent resistance to aggressive environments, such as those rich in acids, chlorides and oxidants at high temperatures.<\/li>\n
  3. Excellent resistance to fatigue and creep<\/strong> – Maintains dimensional stability and mechanical properties up to about 700\u00b0C.<\/li>\n
  4. Good weldability and workability – Better<\/strong> than other high-strength nickel alloys.<\/li>\n<\/ol>\n

    Heat Treatments and Mechanical Resistance <\/strong>Of screws, tie rods, nuts and studs in INCONEL\u00ae 718<\/strong><\/h3>\n

    The mechanical properties of INCONEL\u00ae 718 may vary according to the heat treatments applied. Below are some typical values according to ASTM B637<\/a><\/a>, AMS 5662, AMS 5663, AMS 5664, API 6A and API 20F specifications.<\/p>\n\n\n\n\n\n\n\n\n
    Specifications<\/strong><\/th>\nHeat Treatment<\/strong><\/th>\nTensile Strength (MPa)<\/strong><\/th>\nYield Strength (MPa)<\/strong><\/th>\nElongation (%)<\/strong><\/th>\n<\/tr>\n
    ASTM B637<\/a>, AMS 5662<\/td>\nSolubilization at 980\u00b0C, aging 720\u00b0C for 8h + 620\u00b0C for 8h<\/td>\n1034-1240<\/td>\n724-1034<\/td>\n12-18<\/td>\n<\/tr>\n
    AMS 5663<\/td>\nSolubilization at 980\u00b0C, aging 720\u00b0C for 8h + 620\u00b0C for 8h<\/td>\n1275-1380<\/td>\n1034-1241<\/td>\n10-15<\/td>\n<\/tr>\n
    AMS 5664<\/td>\nCryogenic treatment with aging<\/td>\n>1380<\/td>\n>1170<\/td>\n8-12<\/td>\n<\/tr>\n
    API 6A<\/td>\nSolubilization and aging for petroleum applications<\/td>\n1200-1400<\/td>\n>1030<\/td>\n10-15<\/td>\n<\/tr>\n
    API 20F<\/td>\nSpecific controls for critical fastening systems<\/td>\nComplies with API requirements<\/td>\nComplies with API requirements<\/td>\nComplies with API requirements<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Why INCONEL\u00ae 718 for Fastening Systems?<\/strong><\/h3>\n

    Fastening systems made of INCONEL\u00ae 718<\/a> are used in extreme conditions where standard materials such as stainless steels or titanium alloys do not provide sufficient performance. Some application examples include:<\/p>\n