{"id":19763,"date":"2023-04-13T14:47:08","date_gmt":"2023-04-13T05:47:08","guid":{"rendered":"https:\/\/nitto-stainless.com\/en\/?page_id=19763"},"modified":"2023-06-15T16:15:06","modified_gmt":"2023-06-15T07:15:06","slug":"gmp-03","status":"publish","type":"page","link":"https:\/\/monovate.net\/en\/gmp-03\/","title":{"rendered":"Stainless steel containers also have grades!"},"content":{"rendered":"<p>[gmp]<\/p>\n<h2>Smart selection of stainless steel containers by application<\/h2>\n<h3>Three points that determine the grade of stainless steel containers<\/h3>\n<p>Stainless steel is a corrosion-resistant steel that contains 11% or more chromium in iron and forms a passive film<br \/>\n    (oxide film) on the surface to improve corrosion resistance. It is also excellent in durability, fire resistance,<br \/>\n    low-temperature properties, and workability. Based on these characteristics, stainless steel containers have also<br \/>\n    been used for storage, storage, and transportation in the pharmaceutical industry.<\/p>\n<p>However, storage and transportation have different usage purposes. If the environment and usage are different, the<br \/>\n    appropriate quality of stainless steel container is necessary.<\/p>\n<p><strong><span style=\"font-size: 16px;\">Yes, that&#8217;s right! There are different grades of stainless steel<br \/>\n            containers.<br \/>\n        <\/span><\/strong>So, what are the three points that determine the grade of stainless steel containers?!<\/p>\n<h4>1. Material selection<\/h4>\n<p><div class=\"content-column one_sixth\"><img decoding=\"async\" class=\"alignnone size-full wp-image-3516\"\n        src=\"\/en\/wp-content\/uploads\/point1.jpg\" alt=\"point1\" width=\"115\" height=\"100\" \/><\/div>\n<div class=\"content-column five_sixth last_column\">\n<p>There are said to be over 100 types of stainless steel materials due to differences in structure and composition.<br \/>\n        Different materials have different properties such as high strength, corrosion resistance, heat resistance,<br \/>\n        seawater resistance, and formability. The choice of material affects the application and quality of the product.\n<\/p><\/div>\n<h4>2. Welding technique<\/h4>\n<div class=\"content-column one_sixth\">\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-3517\" src=\"\/en\/wp-content\/uploads\/point2.jpg\" alt=\"point2\" width=\"115\"\n            height=\"100\" \/>\n<\/div>\n<div class=\"content-column five_sixth last_column\">\n<p>There are containers that have been welded smoothly and without gaps, including vertical welding for the main<br \/>\n        body, bottom welding, and flange and handle parts, and those that have not.<br \/>\n        Even with the same material, the quality can vary depending on the welding technique.\n<\/div>\n<div class=\"clear_column\"><\/div>\n<\/p>\n<div class=\"clear_column\"><\/div>\n<\/p>\n<h4>3. Surface Treatment Technology<\/h4>\n<div class=\"content-column one_sixth\">\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-3518\" src=\"\/en\/wp-content\/uploads\/point3.jpg\" alt=\"point3\" width=\"115\"\n            height=\"100\" \/>\n<\/div>\n<div class=\"content-column five_sixth last_column\">\n<p>Even surfaces that appear smooth at first glance actually have tiny irregularities. The quality of the surface<br \/>\n        treatment depends on how smooth these irregularities are and whether any polishing materials or oils remain. The<br \/>\n        quality is affected by techniques such as <a href=\"\/archives\/technic\/buff\/\">buff polishing<\/a> and <a\n            href=\"\/archives\/technic\/ep_tec\/\">electrolytic polishing<\/a>.\n<\/div>\n<div class=\"clear_column\"><\/div>\n<\/p>\n<p><span style=\"font-size: 14pt;\"><span style=\"color: #000000; text-align: center;\">We believe it is our mission to<br \/>\n            propose the optimal quality of stainless steel containers that meet your site&#8217;s needs.<\/span><\/span><\/p>\n<h3>SEM images of stainless steel surfaces<\/h3>\n<p><div class=\"content-column one_half\"><span style=\"font-size: 16px;\"><strong><span style=\"font-size: 14pt;\">316L\/2B<br \/>\n                Material<\/span><br \/>\n        <\/strong><\/span>Stainless steel material commonly used in the pharmaceutical industry for equipment<br \/>\n    <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3544\" src=\"\/en\/wp-content\/uploads\/316l2b_1.jpg\" alt=\"316l2b_1\" width=\"218\"\n        height=\"167\" \/><br \/>\n    <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3546\" src=\"\/en\/wp-content\/uploads\/316l2b_2.jpg\" alt=\"316l2b_2\" width=\"218\"\n        height=\"164\" \/><br \/>\n    <span style=\"text-align: center;\">Surface state with distinct roughness and unevenness<br \/>\n    <\/span><span style=\"text-align: center;\">Easily attracts impurities and difficult to clean<br \/>\n    <\/span><span style=\"text-align: center;\">Fingerprints easily visible and difficult to remove<br \/>\n        <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3549\" src=\"\/en\/wp-content\/uploads\/ya.gif\" alt=\"ya\" width=\"40\"\n            height=\"34\" \/><br \/>\n        <span style=\"font-size: 14pt;\"><strong>High-grade electrolytic polishing<\/strong><\/span><br \/>\n        <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3551\" src=\"\/en\/wp-content\/uploads\/316l2b_3.jpg\" alt=\"316l2b_3\" width=\"218\"\n            height=\"163\" \/><br \/>\n        <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3553\" src=\"\/en\/wp-content\/uploads\/316l2b_4.jpg\" alt=\"316l2b_4\" width=\"218\"\n            height=\"165\" \/><\/span>\n<\/div>\n<p><strong><span style=\"font-size: 16px;\"><span style=\"font-size: 14pt;\">316L\/BA Material<\/span><br \/>\n    <\/span><\/strong>Stainless steel material carefully selected by our company as a dedicated material for containers in<br \/>\nthe pharmaceutical industry.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3545\" src=\"\/en\/wp-content\/uploads\/316lba_1.jpg\" alt=\"316lba_1\" width=\"218\"\n    height=\"167\" \/><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3547\" src=\"\/en\/wp-content\/uploads\/316lba_2.jpg\" alt=\"316lba_2\" width=\"218\"\n    height=\"165\" \/><br \/>\n<span style=\"text-align: center;\">A flat surface with visible, clean metal crystals compared to 2B material.<\/span><span\n    style=\"text-align: center;\">Fingerprints can be easily wiped off even when touched by hand.<\/p>\n<p>    <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3549\" src=\"\/en\/wp-content\/uploads\/ya.gif\" alt=\"ya\" width=\"40\"\n        height=\"34\" \/><br \/>\n    <span style=\"font-size: 14pt;\"><strong>High-grade electrolytic polishing<\/strong><\/span><br \/>\n<\/span><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3552\" src=\"\/en\/wp-content\/uploads\/316lba_3.jpg\" alt=\"316lba_3\" width=\"218\"\n    height=\"166\" \/><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3554\" src=\"\/en\/wp-content\/uploads\/316lba_4.jpg\" alt=\"316lba_4\" width=\"218\"\n    height=\"165\" \/><span style=\"text-align: center;\"><\/div>\n<div class=\"clear_column\"><\/div>\n<p><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000; font-size: 14pt;\">By performing high-grade electrolytic polishing, the rough surface of<br \/>\n        stainless steel becomes smoother, and the carefully selected materials become even smoother. In addition,<br \/>\n        rubbed-in dirt is also dissolved, and the metal crystals are clearly visible. Even when wiped with a white<br \/>\n        cloth, no dirt such as buffing powder adheres.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h4>Low-grade electrolytic polishing<\/h4>\n<p>In general electrolytic polishing, the rough unevenness of the material cannot be completely removed, and the dirt<br \/>\n    that has entered into it remains. The surface does not have a whitish shine.<\/p>\n<p><div class=\"content-column one_half\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3558 size-full\"\n        src=\"\/en\/wp-content\/uploads\/ep1s.jpg\" alt=\"ep1s\" width=\"200\" height=\"152\" \/><\/div>\n<div class=\"content-column one_half last_column\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3559 size-full\"\n        src=\"\/en\/wp-content\/uploads\/ep2s.jpg\" alt=\"ep2s\" width=\"200\" height=\"152\" \/><\/div>\n<div class=\"clear_column\"><\/div>\n<\/p>\n<p><span style=\"color: #000080;\">For more information on electrolytic polishing, please click <a href=\"\/archives\/technic\/ep_tec\/\" target=\"_blank\" rel=\"noopener noreferrer\">here<\/a>.<\/span><\/p>\n<h4>Buff Polishing<a name=\"sus-select\"><\/a><\/h4>\n<p>&nbsp;<\/p>\n<p><div class=\"content-column one_third\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3556 size-full\"\n        src=\"\/en\/wp-content\/uploads\/bafu1s.jpg\" alt=\"bafu1s\" width=\"200\" height=\"151\" \/><\/div>\n<div class=\"content-column two_third last_column\">\n<p>The surface is flattened by brushing with a buff in the same direction, which creates scratches. Although it has<br \/>\n        a glossy appearance, the surface is covered in a large amount of buffing powder and oil. To remove the ingrained<br \/>\n        oil and abrasive, it is necessary to wash the surface multiple times.<\/p>\n<p><span style=\"color: #000000;\"><strong><span style=\"font-size: 16px;\">By performing high-grade electrolytic<br \/>\n                    polishing, the surface becomes even smoother and<\/span><\/strong><strong><span\n                    style=\"font-size: 16px;\"> ingrained dirt is also removed.<\/span><\/strong><\/span>\n<\/div>\n<div class=\"clear_column\"><\/div>\n<\/p>\n<p>For more information on buffing, please click <a href=\"\/archives\/technic\/buff\/\">here<\/a>.<\/p>\n<h3>Choosing the Right Stainless Steel Material<\/h3>\n<p>The properties of stainless steel vary depending on the constituent elements and crystal structure of the material,<br \/>\n    as well as processing and heat treatment conditions.<\/p>\n<h4>SUS304<\/h4>\n<p>This is our standard material. The most widely used steel, it is used in a wide range of applications from household<br \/>\n    items to nuclear power. It has excellent corrosion resistance, ductility, and is suitable for deep drawing and<br \/>\n    bending. It is used in food and general scientific equipment, building materials, paper industry, automotive<br \/>\n    industry, kitchenware, etc.<\/p>\n<h4>SUS316<\/h4>\n<p>Compared to 304, it exhibits excellent corrosion resistance and pitting corrosion resistance in various neutral<br \/>\n    chloride environments (NaCl, K?SO?, etc.), including seawater. It is used in the petroleum and chemical industry,<br \/>\n    dyeing industry, textile industry, and food industry.<\/p>\n<h4>SUS316L<\/h4>\n<p>This is our specialized material for pharmaceutical industry containers. SUS316 was made into a lower carbon steel<br \/>\n    and its corrosion resistance and pitting resistance were further improved. It also has minimal metal ion<br \/>\n    dissolution. It is suitable for applications where post-weld solution heat treatment is difficult. It is mainly used<br \/>\n    in the pharmaceutical and semiconductor industries.<\/p>\n<h5>Advantages of SUS316L material<\/h5>\n<p><div class=\"content-column two_fifth\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3565\"\n        src=\"\/en\/wp-content\/uploads\/304.jpg\" alt=\"304\" width=\"262\" height=\"185\" \/><br \/>\n    Corrosion near the welding part of SUS304 material<\/div>\n<div class=\"content-column three_fifth last_column\">\n<p>Limiting the total amount of chromium carbide precipitation caused by welding: for solvents that promote<br \/>\n        corrosion near the welding parts or welding areas, it has a higher corrosion resistance. The surface is flatter<br \/>\n        and fingerprints can be easily wiped off by hand.<\/p>\n<p>Molybdenum (Mo) added: Improves corrosion resistance against full-face corrosion caused by non-oxidizing acids<br \/>\n        such as hydrochloric acid, sulfuric acid, phosphoric acid, and organic acids.<\/p>\n<p>We are also very particular about the quality of scratches and other defects.<\/p>\n<\/div>\n<div class=\"clear_column\"><\/div>\n<\/p>\n<p>For more information on SUS316L, please click <a href=\"\/archives\/technic\/sus316l\/\">here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[gmp] Smart selection of stainless steel containers by application Three points that determine the grade of stainless steel containers Stainless steel is a corrosion-resistant steel that contains 11% or more chromium in iron and forms a passive film (oxide film) on the surface to improve corrosion resistance. It is also excellent in durability, fire resistance, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-full-width.php","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-19763","page","type-page","status-publish","hentry"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/monovate.net\/en\/wp-json\/wp\/v2\/pages\/19763","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/monovate.net\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/monovate.net\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/monovate.net\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/monovate.net\/en\/wp-json\/wp\/v2\/comments?post=19763"}],"version-history":[{"count":2,"href":"https:\/\/monovate.net\/en\/wp-json\/wp\/v2\/pages\/19763\/revisions"}],"predecessor-version":[{"id":34152,"href":"https:\/\/monovate.net\/en\/wp-json\/wp\/v2\/pages\/19763\/revisions\/34152"}],"wp:attachment":[{"href":"https:\/\/monovate.net\/en\/wp-json\/wp\/v2\/media?parent=19763"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}