{"id":64229,"date":"2025-03-19T21:49:55","date_gmt":"2025-03-20T04:49:55","guid":{"rendered":"https:\/\/coirubber.com\/?page_id=64229"},"modified":"2026-10-18T07:51:10","modified_gmt":"2026-10-18T14:51:10","slug":"astm-d638-plastic-tensile-properties","status":"publish","type":"page","link":"https:\/\/coirubber.com\/de\/astm\/astm-d638-plastic-tensile-properties\/","title":{"rendered":"ASTM D638 Plastic Tensile Properties"},"content":{"rendered":"<h1 data-start=\"0\" data-end=\"74\"><strong data-start=\"2\" data-end=\"72\">ASTM D638: Standard Test Method for Tensile Properties of Plastics<\/strong><\/h1>\n<p data-start=\"380\" data-end=\"746\"><strong data-start=\"380\" data-end=\"393\">ASTM D638<\/strong> is a <strong data-start=\"399\" data-end=\"427\">standardized test method<\/strong> used to determine the <strong data-start=\"450\" data-end=\"509\">tensile strength, elongation, and modulus of elasticity<\/strong> of both <strong data-start=\"518\" data-end=\"558\">reinforced and unreinforced plastics<\/strong>. The test is essential in evaluating how plastic materials behave under <strong data-start=\"631\" data-end=\"649\">tensile forces<\/strong>, providing valuable data for <strong data-start=\"679\" data-end=\"743\">material selection, quality control, and product development<\/strong>.<\/p>\n<h4>Watch: ASTM D638 Plastic Tensile Test, Explained<\/h4>\n<p>This video explains what ASTM D638 measures (strength, stiffness and elongation), why matching test conditions matters when you compare data sheets, and why a test result is not a service-life guarantee. For thin plastic film, see ASTM D882.<\/p>\n<div style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;max-width:100%;margin:16px 0;\"><iframe src=\"https:\/\/www.youtube.com\/embed\/B5YHSOJAv1s\" title=\"ASTM D638 Plastic Tensile Test, Explained - Coi Rubber\" loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allow=\"accelerometer; encrypted-media; gyroscope; picture-in-picture\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p data-start=\"748\" data-end=\"961\">This test method is widely used across industries such as <strong data-start=\"806\" data-end=\"882\">automotive, aerospace, construction, consumer goods, and medical devices<\/strong>, ensuring that plastic components meet <strong data-start=\"922\" data-end=\"958\">performance and safety standards<\/strong>.<\/p>\n<h2 data-start=\"963\" data-end=\"1007\"><strong data-start=\"966\" data-end=\"1005\">Purpose and Importance of ASTM D638<\/strong><\/h2>\n<p data-start=\"1009\" data-end=\"1068\">The ASTM D638 standard serves several critical functions:<\/p>\n<ul data-start=\"1070\" data-end=\"1679\">\n<li data-start=\"1070\" data-end=\"1201\"><strong data-start=\"1072\" data-end=\"1101\">Material Characterization<\/strong> \u2013 Determines <strong data-start=\"1115\" data-end=\"1140\">mechanical properties<\/strong> such as tensile strength, elongation, and Young\u2019s modulus.<\/li>\n<li data-start=\"1202\" data-end=\"1323\"><strong data-start=\"1204\" data-end=\"1223\">Quality Control<\/strong> \u2013 Ensures <strong data-start=\"1234\" data-end=\"1274\">consistency in plastic manufacturing<\/strong>, minimizing defects and improving reliability.<\/li>\n<li data-start=\"1324\" data-end=\"1438\"><strong data-start=\"1326\" data-end=\"1349\">Product Development<\/strong> \u2013 Provides data for <strong data-start=\"1370\" data-end=\"1410\">engineering new plastic formulations<\/strong> with enhanced properties.<\/li>\n<li data-start=\"1439\" data-end=\"1566\"><strong data-start=\"1441\" data-end=\"1466\">Regulatory Compliance<\/strong> \u2013 Many industries require adherence to <strong data-start=\"1506\" data-end=\"1537\">ASTM D638 for certification<\/strong> and material verification.<\/li>\n<li data-start=\"1567\" data-end=\"1679\"><strong data-start=\"1569\" data-end=\"1589\">Failure Analysis<\/strong> \u2013 Helps <strong data-start=\"1598\" data-end=\"1622\">identify weak points<\/strong> in plastic products and improve <strong data-start=\"1655\" data-end=\"1676\">design durability<\/strong>.<\/li>\n<\/ul>\n<h2 data-start=\"1681\" data-end=\"1722\"><strong data-start=\"1684\" data-end=\"1720\">Key Test Procedures in ASTM D638<\/strong><\/h2>\n<h3 data-start=\"1724\" data-end=\"1755\"><strong data-start=\"1728\" data-end=\"1753\">1. Sample Preparation<\/strong><\/h3>\n<ul data-start=\"1756\" data-end=\"2028\">\n<li data-start=\"1756\" data-end=\"1841\"><strong data-start=\"1758\" data-end=\"1775\">Specimen Type<\/strong> \u2013 The test uses a <strong data-start=\"1794\" data-end=\"1813\">dumbbell-shaped<\/strong> oder <strong data-start=\"1817\" data-end=\"1829\">dog-bone<\/strong> specimen.<\/li>\n<li data-start=\"1842\" data-end=\"1922\"><strong data-start=\"1844\" data-end=\"1863\">Thickness Range<\/strong> \u2013 Applies to materials up to <strong data-start=\"1893\" data-end=\"1919\">14 mm (0.55 in.) thick<\/strong>.<\/li>\n<li data-start=\"1923\" data-end=\"2028\"><strong data-start=\"1925\" data-end=\"1941\">Conditioning<\/strong> \u2013 Specimens are conditioned under <strong data-start=\"1976\" data-end=\"2010\">standard laboratory conditions<\/strong> before testing.<\/li>\n<\/ul>\n<h3 data-start=\"2030\" data-end=\"2061\"><strong data-start=\"2034\" data-end=\"2059\">2. Testing Conditions<\/strong><\/h3>\n<ul data-start=\"2062\" data-end=\"2294\">\n<li data-start=\"2062\" data-end=\"2184\"><strong data-start=\"2064\" data-end=\"2101\">Controlled Temperature &amp; Humidity<\/strong> \u2013 Tests are performed in a <strong data-start=\"2129\" data-end=\"2157\">standardized environment<\/strong> to ensure repeatability.<\/li>\n<li data-start=\"2185\" data-end=\"2294\"><strong data-start=\"2187\" data-end=\"2208\">Testing Equipment<\/strong> \u2013 A <strong data-start=\"2213\" data-end=\"2248\">universal testing machine (UTM)<\/strong> is used to apply controlled tensile forces.<\/li>\n<\/ul>\n<h3 data-start=\"2296\" data-end=\"2323\"><strong data-start=\"2300\" data-end=\"2321\">3. Test Execution<\/strong><\/h3>\n<ul data-start=\"2324\" data-end=\"2947\">\n<li data-start=\"2324\" data-end=\"2426\"><strong data-start=\"2326\" data-end=\"2351\">Gripping the Specimen<\/strong> \u2013 The plastic specimen is placed into <strong data-start=\"2390\" data-end=\"2423\">pneumatic or mechanical grips<\/strong>.<\/li>\n<li data-start=\"2427\" data-end=\"2546\"><strong data-start=\"2429\" data-end=\"2447\">Applying Force<\/strong> \u2013 A <strong data-start=\"2452\" data-end=\"2469\">tensile force<\/strong> is applied at a constant strain rate until <strong data-start=\"2513\" data-end=\"2536\">fracture or failure<\/strong> occurs.<\/li>\n<li data-start=\"2547\" data-end=\"2947\"><strong data-start=\"2549\" data-end=\"2568\">Data Collection<\/strong> \u2013 The system records:\n<ul data-start=\"2595\" data-end=\"2947\">\n<li data-start=\"2595\" data-end=\"2662\"><strong data-start=\"2597\" data-end=\"2617\">Tensile Strength<\/strong> \u2013 Maximum stress a material can withstand.<\/li>\n<li data-start=\"2665\" data-end=\"2757\"><strong data-start=\"2667\" data-end=\"2690\">Elongation at Break<\/strong> \u2013 The <strong data-start=\"2697\" data-end=\"2720\">percentage increase<\/strong> in specimen length before failure.<\/li>\n<li data-start=\"2760\" data-end=\"2870\"><strong data-start=\"2762\" data-end=\"2805\">Modulus of Elasticity (Young\u2019s Modulus)<\/strong> \u2013 The stiffness of the material in response to applied stress.<\/li>\n<li data-start=\"2873\" data-end=\"2947\"><strong data-start=\"2875\" data-end=\"2893\">Yield Strength<\/strong> \u2013 The point where <strong data-start=\"2912\" data-end=\"2937\">permanent deformation<\/strong> begins.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2 data-start=\"2949\" data-end=\"2993\"><strong data-start=\"2952\" data-end=\"2991\">Interpreting ASTM D638 Test Results<\/strong><\/h2>\n<ul data-start=\"2995\" data-end=\"3411\">\n<li data-start=\"2995\" data-end=\"3104\"><strong data-start=\"2997\" data-end=\"3022\">High Tensile Strength<\/strong> \u2013 Indicates the material is <strong data-start=\"3051\" data-end=\"3075\">strong and resistant<\/strong> to breaking under tension.<\/li>\n<li data-start=\"3105\" data-end=\"3198\"><strong data-start=\"3107\" data-end=\"3134\">Low Elongation at Break<\/strong> \u2013 Suggests the material is <strong data-start=\"3162\" data-end=\"3195\">brittle and prone to cracking<\/strong>.<\/li>\n<li data-start=\"3199\" data-end=\"3315\"><strong data-start=\"3201\" data-end=\"3231\">High Modulus of Elasticity<\/strong> \u2013 Means the plastic is <strong data-start=\"3255\" data-end=\"3274\">rigid and stiff<\/strong>, useful for load-bearing applications.<\/li>\n<li data-start=\"3316\" data-end=\"3411\"><strong data-start=\"3318\" data-end=\"3335\">Lower Modulus<\/strong> \u2013 Indicates a <strong data-start=\"3350\" data-end=\"3367\">more flexible<\/strong> material, suitable for impact resistance.<\/li>\n<\/ul>\n<h2 data-start=\"3413\" data-end=\"3447\"><strong data-start=\"3416\" data-end=\"3445\">Applications of ASTM D638<\/strong><\/h2>\n<h3 data-start=\"3449\" data-end=\"3478\"><strong data-start=\"3453\" data-end=\"3476\">Automobilindustrie<\/strong><\/h3>\n<ul data-start=\"3479\" data-end=\"3749\">\n<li data-start=\"3479\" data-end=\"3572\"><strong data-start=\"3481\" data-end=\"3513\">Plastic Dashboard Components<\/strong> \u2013 Ensures materials can <strong data-start=\"3538\" data-end=\"3569\">withstand mechanical stress<\/strong>.<\/li>\n<li data-start=\"3573\" data-end=\"3669\"><strong data-start=\"3575\" data-end=\"3603\">Bumper &amp; Exterior Panels<\/strong> \u2013 Tests <strong data-start=\"3612\" data-end=\"3648\">impact resistance and durability<\/strong> of thermoplastics.<\/li>\n<li data-start=\"3670\" data-end=\"3749\"><strong data-start=\"3672\" data-end=\"3701\">Under-the-Hood Components<\/strong> \u2013 Evaluates <strong data-start=\"3714\" data-end=\"3746\">heat and chemical resistance<\/strong>.<\/li>\n<\/ul>\n<h3 data-start=\"3751\" data-end=\"3782\"><strong data-start=\"3755\" data-end=\"3780\">Aerospace and Defense<\/strong><\/h3>\n<ul data-start=\"3783\" data-end=\"3967\">\n<li data-start=\"3783\" data-end=\"3875\"><strong data-start=\"3785\" data-end=\"3813\">Interior Cabin Materials<\/strong> \u2013 Ensures <strong data-start=\"3824\" data-end=\"3872\">lightweight composites meet safety standards<\/strong>.<\/li>\n<li data-start=\"3876\" data-end=\"3967\"><strong data-start=\"3878\" data-end=\"3901\">Structural Plastics<\/strong> \u2013 Tests <strong data-start=\"3910\" data-end=\"3936\">high-strength polymers<\/strong> used in aircraft components.<\/li>\n<\/ul>\n<h3 data-start=\"3969\" data-end=\"4010\"><strong data-start=\"3973\" data-end=\"4008\">Construction and Infrastructure<\/strong><\/h3>\n<ul data-start=\"4011\" data-end=\"4205\">\n<li data-start=\"4011\" data-end=\"4105\"><strong data-start=\"4013\" data-end=\"4036\">Piping and Conduits<\/strong> \u2013 Measures <strong data-start=\"4048\" data-end=\"4084\">tensile strength and flexibility<\/strong> of plastic piping.<\/li>\n<li data-start=\"4106\" data-end=\"4205\"><strong data-start=\"4108\" data-end=\"4137\">Plastic Sheets and Panels<\/strong> \u2013 Determines <strong data-start=\"4151\" data-end=\"4176\">load-bearing capacity<\/strong> of construction materials.<\/li>\n<\/ul>\n<h3 data-start=\"4207\" data-end=\"4234\"><strong data-start=\"4211\" data-end=\"4232\">Consumer Products<\/strong><\/h3>\n<ul data-start=\"4235\" data-end=\"4415\">\n<li data-start=\"4235\" data-end=\"4330\"><strong data-start=\"4237\" data-end=\"4260\">Electronics Casings<\/strong> \u2013 Ensures <strong data-start=\"4271\" data-end=\"4307\">durability and impact resistance<\/strong> of plastic housings.<\/li>\n<li data-start=\"4331\" data-end=\"4415\"><strong data-start=\"4333\" data-end=\"4360\">Toys and Sporting Goods<\/strong> \u2013 Evaluates <strong data-start=\"4373\" data-end=\"4412\">safety and performance under stress<\/strong>.<\/li>\n<\/ul>\n<h3 data-start=\"4417\" data-end=\"4442\"><strong data-start=\"4421\" data-end=\"4440\">Medical Devices<\/strong><\/h3>\n<ul data-start=\"4443\" data-end=\"4630\">\n<li data-start=\"4443\" data-end=\"4535\"><strong data-start=\"4445\" data-end=\"4468\">Syringes and Tubing<\/strong> \u2013 Tests <strong data-start=\"4477\" data-end=\"4503\">biocompatible plastics<\/strong> used in medical applications.<\/li>\n<li data-start=\"4536\" data-end=\"4630\"><strong data-start=\"4538\" data-end=\"4566\">Prosthetics and Implants<\/strong> \u2013 Ensures <strong data-start=\"4577\" data-end=\"4627\">long-term durability of medical-grade polymers<\/strong>.<\/li>\n<\/ul>\n<h2 data-start=\"4632\" data-end=\"4677\"><strong data-start=\"4635\" data-end=\"4675\">Industries Benefiting from ASTM D638<\/strong><\/h2>\n<ul data-start=\"4679\" data-end=\"5184\">\n<li data-start=\"4679\" data-end=\"4787\"><strong data-start=\"4681\" data-end=\"4723\">Automotive and Aerospace Manufacturers<\/strong> \u2013 Ensures plastic components meet <strong data-start=\"4758\" data-end=\"4784\">rigid safety standards<\/strong>.<\/li>\n<li data-start=\"4788\" data-end=\"4873\"><strong data-start=\"4790\" data-end=\"4819\">Plastic Injection Molders<\/strong> \u2013 Verifies material quality before mass production.<\/li>\n<li data-start=\"4874\" data-end=\"4997\"><strong data-start=\"4876\" data-end=\"4922\">Construction and Infrastructure Developers<\/strong> \u2013 Ensures the <strong data-start=\"4937\" data-end=\"4994\">reliability of plastic piping, insulation, and sheets<\/strong>.<\/li>\n<li data-start=\"4998\" data-end=\"5093\"><strong data-start=\"5000\" data-end=\"5034\">Consumer Electronics Companies<\/strong> \u2013 Evaluates <strong data-start=\"5047\" data-end=\"5090\">plastic durability in everyday products<\/strong>.<\/li>\n<li data-start=\"5094\" data-end=\"5184\"><strong data-start=\"5096\" data-end=\"5128\">Medical Device Manufacturers<\/strong> \u2013 Assesses <strong data-start=\"5140\" data-end=\"5181\">performance of biocompatible plastics<\/strong>.<\/li>\n<\/ul>\n<h2 data-start=\"5186\" data-end=\"5231\"><strong data-start=\"5189\" data-end=\"5229\">Advantages of Implementing ASTM D638<\/strong><\/h2>\n<ul data-start=\"5233\" data-end=\"5699\">\n<li data-start=\"5233\" data-end=\"5355\"><strong data-start=\"5235\" data-end=\"5259\">Standardized Testing<\/strong> \u2013 Provides <strong data-start=\"5271\" data-end=\"5308\">consistent and comparable results<\/strong> across different materials and applications.<\/li>\n<li data-start=\"5356\" data-end=\"5477\"><strong data-start=\"5358\" data-end=\"5390\">Improved Product Development<\/strong> \u2013 Helps <strong data-start=\"5399\" data-end=\"5474\">engineers design stronger, safer, and more efficient plastic components<\/strong>.<\/li>\n<li data-start=\"5478\" data-end=\"5599\"><strong data-start=\"5480\" data-end=\"5508\">Enhanced Quality Control<\/strong> \u2013 Identifies <strong data-start=\"5522\" data-end=\"5548\">material defects early<\/strong>, preventing failures in real-world applications.<\/li>\n<li data-start=\"5600\" data-end=\"5699\"><strong data-start=\"5602\" data-end=\"5627\">Regulatory Compliance<\/strong> \u2013 Ensures <strong data-start=\"5638\" data-end=\"5696\">plastics meet industry safety and durability standards<\/strong>.<\/li>\n<\/ul>\n<h2 data-start=\"5701\" data-end=\"5748\"><strong data-start=\"5704\" data-end=\"5746\">Challenges in ASTM D638 Implementation<\/strong><\/h2>\n<ul data-start=\"5750\" data-end=\"6082\">\n<li data-start=\"5750\" data-end=\"5853\"><strong data-start=\"5752\" data-end=\"5787\">Specimen Preparation Complexity<\/strong> \u2013 Requires <strong data-start=\"5799\" data-end=\"5832\">precision cutting and shaping<\/strong> of test specimens.<\/li>\n<li data-start=\"5854\" data-end=\"5943\"><strong data-start=\"5856\" data-end=\"5881\">Equipment Calibration<\/strong> \u2013 Needs <strong data-start=\"5890\" data-end=\"5913\">regular maintenance<\/strong> to ensure accurate results.<\/li>\n<li data-start=\"5944\" data-end=\"6082\"><strong data-start=\"5946\" data-end=\"5975\">Environmental Sensitivity<\/strong> \u2013 Factors like <strong data-start=\"5991\" data-end=\"6019\">humidity and temperature<\/strong> can affect results, requiring <strong data-start=\"6050\" data-end=\"6079\">strict control conditions<\/strong>.<\/li>\n<\/ul>\n<h2 data-start=\"6084\" data-end=\"6140\"><strong data-start=\"6087\" data-end=\"6138\">Comparison with Other Plastic Testing Standards<\/strong><\/h2>\n<h3 data-start=\"6142\" data-end=\"6175\"><strong data-start=\"6146\" data-end=\"6173\">ASTM D638 vs. ASTM D882<\/strong><\/h3>\n<ul data-start=\"6176\" data-end=\"6312\">\n<li data-start=\"6176\" data-end=\"6243\"><strong data-start=\"6178\" data-end=\"6191\">ASTM D638<\/strong> is used for <strong data-start=\"6204\" data-end=\"6222\">rigid plastics<\/strong> up to 14 mm thick.<\/li>\n<li data-start=\"6244\" data-end=\"6312\"><strong data-start=\"6246\" data-end=\"6259\">ASTM D882<\/strong> is designed for <strong data-start=\"6276\" data-end=\"6309\">thin plastic films and sheets<\/strong>.<\/li>\n<\/ul>\n<h3 data-start=\"6314\" data-end=\"6347\"><strong data-start=\"6318\" data-end=\"6345\">ASTM D638 vs. ISO 527-1<\/strong><\/h3>\n<ul data-start=\"6348\" data-end=\"6521\">\n<li data-start=\"6348\" data-end=\"6402\"><strong data-start=\"6350\" data-end=\"6363\">ASTM D638<\/strong> is widely used in <strong data-start=\"6382\" data-end=\"6399\">North America<\/strong>.<\/li>\n<li data-start=\"6403\" data-end=\"6521\"><strong data-start=\"6405\" data-end=\"6418\">ISO 527-1<\/strong> is the <strong data-start=\"6426\" data-end=\"6454\">international equivalent<\/strong> with slightly different specimen dimensions and test conditions.<\/li>\n<\/ul>\n<p>Watch short explainers on rubber and plastic tests in our <a href=\"https:\/\/coirubber.com\/de\/video-library\/\">Video-Bibliothek f\u00fcr Gummitechnische Tests<\/a>.<\/p>\n<p>Need custom molded rubber or plastic parts tested to this standard? Send your drawing and requirements to <a href=\"mailto:estimator@coirubber.com\">estimator@coirubber.com<\/a> oder <a href=\"https:\/\/coirubber.com\/de\/contact-us\/\">Kontaktieren Sie unser Team<\/a>. Coi Rubber has been in business since 2003, is US owned and operated, and our Wuhu, China manufacturing facility is IATF 16949 certified.<\/p>\n<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"VideoObject\",\"name\":\"ASTM D638 Plastic Tensile Test, Explained\",\"description\":\"What ASTM D638 measures (strength, stiffness, elongation), why matching test conditions matters, and why a test result is not a service-life guarantee.\",\"thumbnailUrl\":\"https:\/\/i.ytimg.com\/vi\/B5YHSOJAv1s\/hqdefault.jpg\",\"uploadDate\":\"2026-10-18\",\"embedUrl\":\"https:\/\/www.youtube.com\/embed\/B5YHSOJAv1s\",\"contentUrl\":\"https:\/\/www.youtube.com\/watch?v=B5YHSOJAv1s\",\"publisher\":{\"@type\":\"Organization\",\"name\":\"Coi Rubber Products\",\"url\":\"https:\/\/coirubber.com\/\"}}<\/script><\/p>","protected":false},"excerpt":{"rendered":"<p>ASTM D638: Standard Test Method for Tensile Properties of Plastics ASTM D638 is a standardized test method used to determine the tensile strength, elongation, and modulus of elasticity of both reinforced and unreinforced plastics. The test is essential in evaluating how plastic materials behave under tensile forces, providing valuable data for material selection, quality control, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":64088,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"footnotes":""},"class_list":["post-64229","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ASTM D638 Plastic Tensile Properties - Coi Rubber Products<\/title>\n<meta name=\"description\" content=\"Coi Rubber Products - Customer Rubber and Plastics Manufacturer specializing in Injection Molding, Compression, Transfers, Extrusions, Bonding, and more.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/coirubber.com\/de\/astm\/astm-d638-plastic-tensile-properties\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ASTM D638 Plastic Tensile Properties - Coi Rubber Products\" \/>\n<meta property=\"og:description\" content=\"Coi Rubber Products - Customer Rubber and Plastics Manufacturer specializing in Injection Molding, Compression, Transfers, Extrusions, Bonding, and more.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/coirubber.com\/de\/astm\/astm-d638-plastic-tensile-properties\/\" \/>\n<meta property=\"og:site_name\" content=\"Coi Rubber Products\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/CoiRubber\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-18T14:51:10+00:00\" \/>\n<meta name=\"twitter:label1\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data1\" content=\"4\u00a0Minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/coirubber.com\\\/astm\\\/astm-d638-plastic-tensile-properties\\\/\",\"url\":\"https:\\\/\\\/coirubber.com\\\/astm\\\/astm-d638-plastic-tensile-properties\\\/\",\"name\":\"ASTM D638 Plastic Tensile Properties - Coi Rubber Products\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/coirubber.com\\\/#website\"},\"datePublished\":\"2025-03-20T04:49:55+00:00\",\"dateModified\":\"2026-10-18T14:51:10+00:00\",\"description\":\"Coi Rubber Products - Customer Rubber and Plastics Manufacturer specializing in Injection Molding, Compression, Transfers, Extrusions, Bonding, and more.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/coirubber.com\\\/astm\\\/astm-d638-plastic-tensile-properties\\\/#breadcrumb\"},\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/coirubber.com\\\/astm\\\/astm-d638-plastic-tensile-properties\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/coirubber.com\\\/astm\\\/astm-d638-plastic-tensile-properties\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/coirubber.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"ASTM\",\"item\":\"https:\\\/\\\/coirubber.com\\\/astm\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"ASTM D638 Plastic Tensile Properties\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/coirubber.com\\\/#website\",\"url\":\"https:\\\/\\\/coirubber.com\\\/\",\"name\":\"Coi Rubber Products\",\"description\":\"Rubber &amp; 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