{"id":13299,"date":"2024-06-28T17:16:19","date_gmt":"2024-06-28T17:16:19","guid":{"rendered":"https:\/\/haynesintl.com\/alloys\/welding-and-fabrication\/"},"modified":"2025-02-24T19:45:20","modified_gmt":"2025-02-24T19:45:20","slug":"soldadura-y-fabricacion","status":"publish","type":"alloys","link":"https:\/\/haynesintl.com\/es\/alloys\/soldadura-y-fabricacion\/","title":{"rendered":"Soldadura y Fabricaci\u00f3n"},"content":{"rendered":"\n

The HAYNES\u00ae<\/sup> and HASTELLOY\u00ae<\/sup> alloys fall into two main categories:<\/p>\n\n\n\n

Corrosion-resistant Alloys (CRA)<\/strong>, which are generally used at temperatures below 1000\u00b0F, and are able to withstand corrosive liquids.
High-temperature Alloys (HTA)<\/strong>, which are generally used above 1000\u00b0F, at which temperatures they possess considerable strength and resistance to hot air and\/or other hot gases.<\/p>\n\n\n\n

The high-temperature alloys can also be sub-categorized according to the mechanism used to provide their strength. Many of the alloys contain significant quantities of atomically-large elements; these provide strength through a mechanism known as solid-solution strengthening. Other HTA materials use a mechanism known as age-hardening (also known as precipitation-hardening) to attain the required strength levels. There is also one age-hardenable, corrosion-resistant alloy.<\/p>\n\n\n\n

The heat treatments required to strengthen the age-hardenable materials are normally performed after welding and hot\/cold-working, and prior to these heat treatments, there is much in common with the fabrication techniques\/parameters employed with the solid-solution strengthened alloys, as long as they are supplied in the annealed condition.<\/p>\n\n\n\n

As with the stainless steels and other alloy systems, it is advantageous to have a rudimentary understanding of the metallurgical changes that might occur in the HAYNES\u00ae<\/sup> and HASTELLOY\u00ae<\/sup> alloys, if exposed to the heat of welding, the high temperatures involved with hot-working, or the effects of annealing after cold-working. If brazing is to be attempted, it is very important to understand how the temperatures involved with brazing might affect the HAYNES\u00ae<\/sup> and HASTELLOY\u00ae<\/sup> materials, or conversely how subsequent age-hardening (in the case of the age-hardenable alloys) or annealing treatments (in the case of any of the alloys) might affect the brazed joint.<\/p>\n\n\n\n

In addition to the general purpose alloys manufactured by Haynes International, there are several special purpose alloys, requiring different fabrication approaches. One is a titanium alloy made only in the form of tubulars, and for which fabrication references are given. One is a high-temperature, nickel-based alloy that requires a nitrogen diffusion treatment to impart strength to the material, and for which there are some specific fabrication issues. The other two are cobalt-based, wear-resistant alloys, one of which is not normally welded or formed; the other is easily welded, but somewhat resistant to cold-working due to a high work-hardening rate.<\/p>\n\n\n\n

Haynes International Alloys<\/h3>\n\n\n\n

High-temperature Alloys (HTA)<\/h3>\n\n\n\n
\n
\n \n\n \n \n \n \n \n
\n High-temperature Alloys (HTA) <\/th>\n <\/tr>\n
\n Base <\/td>\n \n Solid-Solution <\/td>\n \n Age-Hardenable <\/td>\n <\/tr>\n
\n Nickel <\/td>\n \n
N, S, W, X
75
214\u00ae<\/sup>, 230\u00ae<\/sup>
617\u00ae<\/sup>, 625, 625SQ\u00ae<\/sup>
HR-120\u00ae<\/sup>, HR-160\u00ae<\/sup>, HR-224\u00ae<\/sup>, HR-235\u00ae<\/sup><\/div> <\/td>\n
\n
242\u00ae<\/sup>, 244\u00ae<\/sup>, 263, 282\u00ae<\/sup>
718
R-41
Waspaloy
X-750<\/div> <\/td>\n <\/tr>\n
\n Cobalt <\/td>\n \n
25, 188<\/div> <\/td>\n
\n - <\/td>\n <\/tr>\n
\n Iron <\/td>\n \n
556\u00ae<\/sup>, MULTIMET\u00ae<\/sup><\/div> <\/td>\n
\n - <\/td>\n <\/tr>\n <\/table>\n<\/div>