{"id":4087,"date":"2025-09-12T03:21:30","date_gmt":"2025-09-12T03:21:30","guid":{"rendered":"https:\/\/juyuans.com\/?p=4087"},"modified":"2025-09-12T03:22:06","modified_gmt":"2025-09-12T03:22:06","slug":"radel-r5500-vs-r4400-ppsu-selection-comparison-guide","status":"publish","type":"post","link":"https:\/\/juyuans.com\/th\/radel-r5500-vs-r4400-ppsu-selection-comparison-guide\/","title":{"rendered":"RADEL R5500 vs R4400: PPSU Selection & Comparison Guide"},"content":{"rendered":"

RADEL R5500 vs RADEL R4400<\/span><\/h1>\n

 <\/p>\n

Among PPSU (polysulfone) materials, RADEL R5500 and RADEL R4400 are two common models for purchasers.<\/span> Both belong to the UL94 V-0 flame retardant grade, but they each have their own advantages in terms of toughness, heat resistance and application positioning.<\/span> This article will take you through an in-depth comparison to help you make a quick selection.<\/span><\/span><\/p>\n

\"RADEL<\/p>\n

 <\/p>\n

01 | Performance Comparison<\/span><\/h2>\n

 <\/p>\n

Toughness and impact performance<\/span><\/strong><\/p>\n

\u00a0 \u30fbR5500:<\/strong> The notched impact value of the cantilever beam is approximately 534 J\/m, offering stronger impact resistance and making it suitable for extreme environments.<\/span><\/p>\n

\u00a0 \u30fbR4400:<\/strong> Approximately 267 J\/m, with a relatively low impact strength, making it more suitable for medium-load environments.<\/span><\/p>\n

Heat resistance performance<\/span><\/strong><\/p>\n

\u00a0 \u30fbR5500:<\/strong> The heat distortion temperature can reach 207\u2103, making it suitable for frequent high-temperature applications.<\/span><\/p>\n

\u00a0 \u30fbR4400:<\/strong> Approximately 190\u2103, with slightly inferior heat resistance.<\/span><\/p>\n

Flexibility and ductility<\/span><\/strong><\/p>\n

\u00a0 \u30fbR5500:<\/strong> With an elongation rate as high as 90%, it is suitable for complex forming and parts that require toughness.<\/span>
\n<\/span><\/p>\n

\u00a0 \u30fbR4400:<\/strong> Elongation is approximately 60%, and its molding compatibility is slightly lower.<\/span><\/p>\n

Mechanical equilibrium<\/span><\/strong><\/p>\n

\u00a0 \u30fbR5500:<\/strong> It combines strength and toughness, and is more inclined towards a \"comprehensive type\".<\/span><\/p>\n

\u00a0 \u30fbR4400:<\/strong> It has slightly higher bending strength and modulus, and has an advantage in scenarios with higher rigidity requirements.<\/span><\/p>\n

 <\/p>\n

02 | Application Differences<\/span>
\n<\/span><\/span><\/h2>\n

 <\/p>\n

RADEL R5500<\/span><\/span><\/strong><\/p>\n

\u00a0 -<\/strong><\/span>Medical devices (repeated high-temperature sterilization, transparent components)
\n\u00a0 -<\/strong><\/span>Aerospace (impact-resistant components)
\n\u00a0 -<\/strong><\/span>High-end electronic and electrical products (parts with high requirements for flame retardancy and long-term stability)<\/span><\/span><\/p>\n

RADEL R4400<\/strong><\/span><\/p>\n

\u00a0 -<\/strong><\/span>Electrical insulating parts (in scenarios with high rigidity requirements)
\n\u00a0 -<\/strong><\/span>General industrial components (Durability requirements in medium-temperature environments)
\n\u00a0 -<\/strong><\/span>Cost-sensitive projects (still reliable under limited budgets)
\n<\/span><\/span><\/p>\n

 <\/p>\n

03 | Comparison and Purchasing Recommendations<\/span><\/h2>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n
\u0e04\u0e38\u0e13\u0e2a\u0e21\u0e1a\u0e31\u0e15\u0e34<\/span><\/strong><\/td>\nRADEL R5500<\/span><\/strong><\/td>\nRADEL R4400<\/span><\/strong><\/td>\n<\/tr>\n
\u0e04\u0e27\u0e32\u0e21\u0e15\u0e49\u0e32\u0e19\u0e17\u0e32\u0e19\u0e15\u0e48\u0e2d\u0e41\u0e23\u0e07\u0e01\u0e23\u0e30\u0e41\u0e17\u0e01<\/span><\/td>\n\u2b50\u2b50\u2b50\u2b50\u2b50\u00a0Excellent, notched impact >500 J\/m, suitable for high-stress applications<\/span><\/td>\n\u2b50\u2b50\u2b50\u00a0Moderate, ~267 J\/m, suitable for general industrial use<\/span><\/td>\n<\/tr>\n
Heat Resistance<\/span><\/td>\n\u2b50\u2b50\u2b50\u2b50\u2b50\u00a0Heat deflection ~207\u2103, suitable for high-temperature sterilization<\/span><\/td>\n\u2b50\u2b50\u2b50\u00a0~190\u2103, suitable for medium-temperature environments<\/span><\/td>\n<\/tr>\n
Toughness & Flexibility<\/span><\/td>\n\u2b50\u2b50\u2b50\u2b50\u2b50\u00a0Elongation ~90%, ideal for complex designs<\/span><\/td>\n\u2b50\u2b50\u2b50\u00a0Elongation ~60%, less flexible<\/span><\/td>\n<\/tr>\n
Rigidity & Strength<\/span><\/td>\n\u2b50\u2b50\u2b50\u2b50\u00a0Balanced toughness and stiffness, suitable for load-bearing parts<\/span><\/td>\n\u2b50\u2b50\u2b50\u2b50\u00a0Higher flexural modulus, rigidity advantage<\/span><\/td>\n<\/tr>\n
Transparency & Optical Clarity<\/span><\/td>\n\u2b50\u2b50\u2b50\u2b50\u00a0Stable transparency, suitable for medical & aerospace components<\/span><\/td>\n\u2b50\u2b50\u2b50\u00a0Maintains transparency, slightly lower long-term durability<\/span><\/td>\n<\/tr>\n
Cost Positioning<\/span><\/td>\n\u2b50\u2b50\u2b50\u00a0Premium, higher price for high-end applications<\/span><\/td>\n\u2b50\u2b50\u2b50\u2b50\u2b50\u00a0Cost-effective, suitable for large-volume industrial procurement<\/span><\/td>\n<\/tr>\n
\u0e01\u0e32\u0e23\u0e43\u0e0a\u0e49\u0e07\u0e32\u0e19\u0e17\u0e31\u0e48\u0e27\u0e44\u0e1b<\/span><\/td>\nMedical devices, aerospace, food contact components<\/span><\/td>\nElectrical insulation parts, general industrial components, cost-sensitive projects<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n


\n\u00a0 -<\/strong><\/span><\/span>If you need high-end applications that are shock-resistant, heat-resistant and suitable for repeated sterilization<\/strong> \u2192 choose RADEL R5500<\/span><\/span><\/p>\n

\u00a0 -<\/strong><\/span><\/span>If you are more concerned about rigidity, cost and general industrial applications<\/strong> \u2192 choose RADEL R4400<\/span><\/span><\/p>\n

In a nutshell:<\/span><\/span><\/p>\n

\ud83d\udc49 R5500 = high-end medical & aviation grade PPSU<\/span><\/span><\/p>\n

\ud83d\udc49 R4400 = industrial general & cost-performance preferred<\/span><\/span><\/p>\n

 <\/p>\n

04 | Customer Feedback<\/span><\/h2>\n

 <\/p>\n

R5500 user:<\/strong> Medical customers have reported a longer service life and a reduced frequency of parts replacement.<\/span><\/p>\n

R4400 users:<\/strong> Electronic manufacturers prefer its rigidity and stability, which meet standard testing requirements and have controllable costs.<\/span><\/p>\n

 <\/p>\n

05 | FAQ<\/span><\/h2>\n

 <\/p>\n

Q1: Can both be used in medical devices?<\/span><\/strong><\/p>\n

Sure, but the R5500 is more suitable for repeated sterilization and high-end medical scenarios.<\/span><\/p>\n

Q2: Which material is more suitable to replace metal parts?<\/span><\/strong><\/p>\n

The impact toughness and ductility of A2: R5500 give it an edge when it comes to lightweight alternatives to metals.<\/span><\/p>\n

Q3: How is the procurement cycle and supply situation?<\/span><\/strong>
\n<\/span><\/p>\n

Juyuan maintains a stable inventory and can provide a continuous supply of R5500 and R4400 according to customer demand.<\/span><\/p>\n

\"plastic<\/p>\n

 <\/p>\n

06 | Reasons to Choose Juyuan<\/span><\/h2>\n

 <\/p>\n

As an international plastic raw material trader with 24 years of experience, Juyuan is committed to providing customers with professional services for PPSU series materials (including RADEL R5500 and R4400) :<\/span><\/span><\/p>\n

\u00a0 -<\/span><\/span>Supply chain guarantee:<\/strong> Long-term cooperative channels to ensure stable supply of goods.<\/span><\/span><\/p>\n

\u00a0 -<\/span><\/span><\/span>Global experience:<\/strong> Exports cover industries such as healthcare, aviation, electrical, and food.<\/span><\/p>\n

\u00a0 -<\/span><\/span><\/span>Selection consultation:<\/strong> Assist customers in making a quick decision between R5500 and R4400.<\/span><\/p>\n

\u00a0 -<\/span><\/span><\/span>Cost optimization:<\/strong> Provide cost-effective solutions while ensuring performance.<\/span><\/p>\n

 <\/p>\n

07 | Conclusion<\/span><\/h2>\n

 <\/p>\n

\u00a0 -<\/span><\/span><\/span>RADEL R5500<\/strong> - The preferred choice for high-end applications, suitable for extreme environments and high-frequency sterilization.<\/span><\/p>\n

\u00a0 -<\/span><\/span><\/span>RADEL R4400<\/strong> - A reliable choice for industrial grade, with strong rigidity and high cost performance.<\/span><\/p>\n

At PPSU procurement, Juyuan will provide you with a one-stop solution.<\/span><\/p>\n

\"PPSU<\/p>\n

 <\/p>\n

 <\/p>\n

\u3010\u0e02\u0e49\u0e2d\u0e41\u0e19\u0e30\u0e19\u0e33\u0e17\u0e35\u0e48\u0e40\u0e01\u0e35\u0e48\u0e22\u0e27\u0e02\u0e49\u0e2d\u0e07\u3011<\/strong><\/span><\/h2>\n

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\n

Global Plastic Raw Material Market<\/a> Insights H2 2025 <\/span>\u0e40\u0e23\u0e35\u0e22\u0e19\u0e23\u0e39\u0e49\u0e40\u0e1e\u0e34\u0e48\u0e21\u0e40\u0e15\u0e34\u0e21><\/span><\/a><\/p>\n

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RADEL\u00ae PPSU<\/a> | High Tough Plastics for Medical & Aerospace \u0e40\u0e23\u0e35\u0e22\u0e19\u0e23\u0e39\u0e49\u0e40\u0e1e\u0e34\u0e48\u0e21\u0e40\u0e15\u0e34\u0e21><\/span><\/a><\/span><\/span><\/span><\/p>\n

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RADEL\u00ae R-7159 Series<\/a> | PPSU Aerospace-Grade Material Guide <\/span>\u0e40\u0e23\u0e35\u0e22\u0e19\u0e23\u0e39\u0e49\u0e40\u0e1e\u0e34\u0e48\u0e21\u0e40\u0e15\u0e34\u0e21><\/span><\/a><\/p>\n

\n<\/div>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

RADEL R5500 vs RADEL R4400   Among PPSU (polysulfone) materials, RADEL R5500 and RADEL R4400 are two common models for purchasers. Both belong to the UL94 V-0 flame retardant grade, but they each have their own advantages in terms of toughness, heat resistance and application positioning. This article will take you through an in-depth comparison […]<\/p>\n","protected":false},"author":1,"featured_media":4041,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[40],"class_list":["post-4087","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-polyphenylsulfone","tag-ppsu"],"jetpack_featured_media_url":"https:\/\/juyuans.com\/wp-content\/uploads\/2025\/09\/IMG_20220810_134215-e1757301632457.jpg","_links":{"self":[{"href":"https:\/\/juyuans.com\/th\/wp-json\/wp\/v2\/posts\/4087","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/juyuans.com\/th\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/juyuans.com\/th\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/juyuans.com\/th\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/juyuans.com\/th\/wp-json\/wp\/v2\/comments?post=4087"}],"version-history":[{"count":3,"href":"https:\/\/juyuans.com\/th\/wp-json\/wp\/v2\/posts\/4087\/revisions"}],"predecessor-version":[{"id":4090,"href":"https:\/\/juyuans.com\/th\/wp-json\/wp\/v2\/posts\/4087\/revisions\/4090"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/juyuans.com\/th\/wp-json\/wp\/v2\/media\/4041"}],"wp:attachment":[{"href":"https:\/\/juyuans.com\/th\/wp-json\/wp\/v2\/media?parent=4087"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/juyuans.com\/th\/wp-json\/wp\/v2\/categories?post=4087"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/juyuans.com\/th\/wp-json\/wp\/v2\/tags?post=4087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}