{"id":3921,"date":"2026-04-22T06:17:53","date_gmt":"2026-04-22T06:17:53","guid":{"rendered":"https:\/\/nylonplastic.com\/peek-vs-pei-high-temperature-engineering-plastics\/"},"modified":"2026-06-02T00:46:08","modified_gmt":"2026-06-02T00:46:08","slug":"peek-vs-pei-high-temperature-engineering-plastics","status":"publish","type":"post","link":"https:\/\/nylonplastic.com\/fr\/peek-vs-pei-high-temperature-engineering-plastics\/","title":{"rendered":"PEEK vs PEI \u2014 High-Temperature Engineering Plastics Compared"},"content":{"rendered":"
\"PEEK<\/figure>\n
\"PEEK
PEEK vs PEI \u2014 High-Temperature Engineering Plastics Compared<\/figcaption><\/figure>\n
\"PEEK
PEEK vs PEI \u2014 High-Temperature Engineering Plastics Compared<\/figcaption><\/figure>\n

High-Temperature Performance<\/h2>\n

PEEK<\/strong> et PEI (Ultem)<\/strong> are leading high-temperature engineering plastics.<\/p>\n

Key Differences<\/h2>\n\n\n\n\n\n
Propri\u00e9t\u00e9<\/th>\nPEEK<\/th>\nPEI<\/th>\n<\/tr>\n
Continuous Use Temp<\/td>\n250\u00b0C<\/td>\n170\u00b0C<\/td>\n<\/tr>\n
R\u00e9sistance chimique<\/td>\nExcellent<\/td>\nBon<\/td>\n<\/tr>\n
Co\u00fbt<\/td>\n$150-300\/kg<\/td>\n$30-60\/kg<\/td>\n<\/tr>\n<\/table>\n
\n

FAQ<\/h2>\n
\nWhen is PEEK vs PEI \u2014 High-Temperature Engineering Plastics Compared a good option?<\/summary>\n
\n

PEEK vs PEI \u2014 High-Temperature Engineering Plastics Compared is a good option when fast iteration, complex geometry, low tooling cost, or low-volume production is more important than molded-part unit cost.<\/p>\n<\/div>\n<\/details>\n

\nWhat should be checked before choosing PEEK vs PEI \u2014 High-Temperature Engineering Plastics Compared?<\/summary>\n
\n

V\u00e9rifier la taille de la pi\u00e8ce, les propri\u00e9t\u00e9s du mat\u00e9riau, l'\u00e9tat de surface, la tol\u00e9rance dimensionnelle, l'exposition \u00e0 la chaleur, la direction de la charge et la n\u00e9cessit\u00e9 d'un post-traitement.<\/p>\n<\/div>\n<\/details>\n

\nHow does PEEK vs PEI \u2014 High-Temperature Engineering Plastics Compared compare with CNC machining?<\/summary>\n
\n

L'impression 3D permet de cr\u00e9er rapidement des formes complexes, tandis que l'usinage CNC est souvent plus performant pour les surfaces pr\u00e9cises, les tol\u00e9rances plus \u00e9troites et les mat\u00e9riaux de qualit\u00e9.<\/p>\n<\/div>\n<\/details>\n

\nWhat affects the cost of PEEK vs PEI \u2014 High-Temperature Engineering Plastics Compared?<\/summary>\n
\n

Le co\u00fbt d\u00e9pend du mat\u00e9riau, du volume de construction, du temps d'impression, de la hauteur des couches, de l'enl\u00e8vement du support, de la finition, de l'inspection et du nombre de pi\u00e8ces dans la construction.<\/p>\n<\/div>\n<\/details>\n<\/div>\n\t\t\t

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