{"id":2099,"date":"2022-06-05T17:08:45","date_gmt":"2022-06-05T11:38:45","guid":{"rendered":"https:\/\/www.ambicasteels.com\/blog\/?p=2099"},"modified":"2024-11-05T11:37:14","modified_gmt":"2024-11-05T06:07:14","slug":"how-to-check-the-grade-304-and-202","status":"publish","type":"post","link":"https:\/\/www.ambicasteels.com\/blog\/how-to-check-the-grade-304-and-202\/","title":{"rendered":"How to check the grade 304 and 202?"},"content":{"rendered":"<div align=\"justify\">\n<p>Grade <a href=\"https:\/\/www.ambicasteels.com\/sae-304-stainless-steel\"><strong>304 Stainless steel<\/strong><\/a> and 202 are <strong>austenitic stainless steel<\/strong>. The face-center cube is the lattice arrangement for both grades. Grade 304 contains a larger nickel concentration than grade 202. Grade 202 is characterized by the presence of manganese and nitrogen in its chemistry. On visual cue, both grades will appear identical.<\/p>\n<ul>\n<li>Grinder test can be employed to state the identification between the grade 304 and 202. <strong>Grade 304<\/strong> will show thin reddish-orange sparks and sparks will fly for a long time due to the higher density of more nickel content. On the other hand, thick yellow sparks will appear for grade 202.<\/li>\n<li>Manganese and nickel spot tests can be administered on grades 304 and 202. Grade 304 has more nickel concentration and grade 202 has higher manganese.<\/li>\n<li>X-ray fluorescence spectroscopy is a reliable but expensive method.<\/li>\n<\/ul>\n<p>Nickel is a traded commodity and has volatile prices. Grade 304 is more expensive than grade 202 as it contains 8-10% of nickel. Grade 304 is widely used in the food processing industry, heat exchangers, etc whereas grade 202 is an economical substitution of grade 304 in some of the applications.<\/p>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Grade 304 Stainless steel and 202 are austenitic stainless steel. The face-center cube is the lattice arrangement for both grades. Grade 304 contains a larger nickel concentration than grade 202. Grade 202 is characterized by the presence of manganese and&#8230; <\/p>\n","protected":false},"author":2,"featured_media":2369,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[123],"tags":[],"class_list":["post-2099","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-frequently-asked-question-faq"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/posts\/2099","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/comments?post=2099"}],"version-history":[{"count":2,"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/posts\/2099\/revisions"}],"predecessor-version":[{"id":2310,"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/posts\/2099\/revisions\/2310"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/media\/2369"}],"wp:attachment":[{"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/media?parent=2099"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/categories?post=2099"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/tags?post=2099"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}