{"id":353,"date":"2019-06-03T05:22:30","date_gmt":"2019-06-03T05:22:30","guid":{"rendered":"https:\/\/www.markolaser.comblog\/?p=353"},"modified":"2026-07-21T10:33:05","modified_gmt":"2026-07-21T10:33:05","slug":"laser-marking-vs-annealing-guide","status":"publish","type":"post","link":"https:\/\/www.markolaser.com\/blog\/laser-marking-vs-annealing-guide\/","title":{"rendered":"Dark laser marking or annealing"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Dark laser marking or annealing of metals also known as dark oxide creation is especially done on stainless steel-304. Markolaser 10\/20 watt systems have achieved excellent dark marking capabilities at very high speeds. Bathroom fittings and medical implant industries greatly benefit from our expertise in application engraving. It is also called &#8220;laser anneal&#8221; marking and has excellent qualities, few of which are listed down below:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Smooth surface (no engraving felt by hand).<\/li>\n\n\n\n<li>Black in contrast.<\/li>\n\n\n\n<li>Deep enough which ensures long life.<\/li>\n\n\n\n<li>Passes salt spray test.<\/li>\n\n\n\n<li>Complies with ASTM F1089.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Annealing Laser Marking<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Annealing marking is an oxidation process used on carbon-containing metals by applying heat through laser on the surface of the metal. Annealing marking generally gives a black mark with a smooth finish, but color may vary from brown, red, green, etc. depending upon the amount of heat used for marking.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Some key points of annealing:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Used on carbon-containing metals such as titanium, steel, stainless steel, iron.<\/li>\n\n\n\n<li>The oxidation process can result in a variety of colors.<\/li>\n\n\n\n<li>A slower, more drawn-out process.<\/li>\n\n\n\n<li>Common in the medical industry applications such as internal tracking and branding.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;<strong><em>Carbon Migration Laser Marking<\/em><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Carbon migration is another type of laser marking in which a metal or metal alloy is heated, causing the metal to chemically bond with its carbon molecules. This bonding brings the carbon properties to the surface of your material. When this occurs, it will often result in a dark laser marking that can even be black in color. This type of marking is a faster process than annealing because it provides a relatively higher amount of heat to a smaller area within a more short time period.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Some of the key-points of carbon migration laser marking:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Only metals and its alloys containing carbon such as steel, stainless steel, carbide, titanium can utilize this marking.<\/li>\n\n\n\n<li>The heating process migrates carbon to the surface.<\/li>\n\n\n\n<li>It produces dark markings.<\/li>\n\n\n\n<li>Heat is applied rapidly.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" data-id=\"918\" src=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/01.jpg\" alt=\"laser marking sample\" class=\"wp-image-918\" srcset=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/01.jpg 1000w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/01-150x150.jpg 150w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/01-300x300.jpg 300w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/01-768x768.jpg 768w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/01-170x170.jpg 170w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Laser marking on medical tool<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" data-id=\"919\" src=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/02.jpg\" alt=\"laser marking sample\" class=\"wp-image-919\" srcset=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/02.jpg 1000w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/02-150x150.jpg 150w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/02-300x300.jpg 300w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/02-768x768.jpg 768w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/02-170x170.jpg 170w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Laser marking on medical pipe tool<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" data-id=\"921\" src=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/04.jpg\" alt=\"laser marking sample\" class=\"wp-image-921\" srcset=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/04.jpg 1000w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/04-150x150.jpg 150w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/04-300x300.jpg 300w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/04-768x768.jpg 768w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/04-170x170.jpg 170w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Laser marking on medical cutter tool<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" data-id=\"922\" src=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/05.jpg\" alt=\"laser marking sample\" class=\"wp-image-922\" srcset=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/05.jpg 1000w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/05-150x150.jpg 150w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/05-300x300.jpg 300w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/05-768x768.jpg 768w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/05-170x170.jpg 170w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\"><strong>Laser marking on medical pliers<\/strong><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" data-id=\"923\" src=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/06.jpg\" alt=\"laser marking sample\" class=\"wp-image-923\" srcset=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/06.jpg 1000w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/06-150x150.jpg 150w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/06-300x300.jpg 300w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/06-768x768.jpg 768w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/06-170x170.jpg 170w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Laser marking on medical screw driver tool<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" data-id=\"924\" src=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/07.jpg\" alt=\"laser marking sample\" class=\"wp-image-924\" srcset=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/07.jpg 1000w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/07-150x150.jpg 150w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/07-300x300.jpg 300w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/07-768x768.jpg 768w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/07-170x170.jpg 170w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Laser marking on medical tool<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" data-id=\"925\" src=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/08.jpg\" alt=\"laser marking sample\" class=\"wp-image-925\" srcset=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/08.jpg 1000w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/08-150x150.jpg 150w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/08-300x300.jpg 300w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/08-768x768.jpg 768w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/08-170x170.jpg 170w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Laser marking on medical tool<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" data-id=\"927\" src=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/10.jpg\" alt=\"laser marking sample\" class=\"wp-image-927\" srcset=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/10.jpg 1000w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/10-150x150.jpg 150w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/10-300x300.jpg 300w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/10-768x768.jpg 768w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/10-170x170.jpg 170w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Laser marking on medical tool<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" data-id=\"928\" src=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/11.jpg\" alt=\"laser marking sample\" class=\"wp-image-928\" srcset=\"https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/11.jpg 1000w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/11-150x150.jpg 150w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/11-300x300.jpg 300w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/11-768x768.jpg 768w, https:\/\/www.markolaser.com\/blog\/wp-content\/uploads\/2019\/07\/11-170x170.jpg 170w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Laser marking on medical tool<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">For more details visit us at<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;<a href=\"https:\/\/www.markolaser.com\/\">https:\/\/www.markolaser.com\/<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Email us:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">info@markolaser.com<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Check-out our&nbsp;website for different technology<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>For Inks printing requirement<\/td><td><a href=\"https:\/\/www.spinksworld.com\/\">https:\/\/www.spinksworld.com\/<\/a><\/td><\/tr><tr><td>For Laser printing requirement<\/td><td><a href=\"https:\/\/www.markolaser.com\/\">https:\/\/www.markolaser.com\/<\/a><\/td><\/tr><tr><td>For Pad Printing requirement<\/td><td><a href=\"https:\/\/www.padprintingpadsonline.com\/\">https:\/\/www.padprintingpadsonline.com\/<\/a><\/td><\/tr><tr><td>For Digital printing requirement<\/td><td><a href=\"https:\/\/kolorobia.com\/\">https:\/\/kolorobia.com\/<\/a><\/td><\/tr><tr><td>For screen and pad printing<\/td><td><a href=\"https:\/\/www.spinksindia.com\/\">https:\/\/www.spinksindia.com\/<\/a><\/td><\/tr><tr><td>For the jewelry industry<\/td><td><a href=\"https:\/\/www.jewelaser.com\/\">https:\/\/www.jewelaser.com\/<\/a><\/td><\/tr><tr><td>For coating and automation<\/td><td><a href=\"https:\/\/www.spinkssoftech.com\/\">https:\/\/www.spinkssoftech.com\/<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Dark laser marking or annealing of metals also known as dark oxide creation is especially done on stainless steel-304. Markolaser 10\/20 watt systems have achieved excellent dark marking capabilities at very high speeds. Bathroom fittings and medical implant industries greatly benefit from our expertise in application engraving. It is also called &#8220;laser anneal&#8221; marking and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2982,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"class_list":["post-353","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-laser"],"_links":{"self":[{"href":"https:\/\/www.markolaser.com\/blog\/wp-json\/wp\/v2\/posts\/353","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.markolaser.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.markolaser.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.markolaser.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.markolaser.com\/blog\/wp-json\/wp\/v2\/comments?post=353"}],"version-history":[{"count":5,"href":"https:\/\/www.markolaser.com\/blog\/wp-json\/wp\/v2\/posts\/353\/revisions"}],"predecessor-version":[{"id":3535,"href":"https:\/\/www.markolaser.com\/blog\/wp-json\/wp\/v2\/posts\/353\/revisions\/3535"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.markolaser.com\/blog\/wp-json\/wp\/v2\/media\/2982"}],"wp:attachment":[{"href":"https:\/\/www.markolaser.com\/blog\/wp-json\/wp\/v2\/media?parent=353"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.markolaser.com\/blog\/wp-json\/wp\/v2\/categories?post=353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}