{"id":2243,"date":"2023-09-29T15:32:21","date_gmt":"2023-09-29T10:02:21","guid":{"rendered":"https:\/\/www.ambicasteels.com\/blog\/?p=2243"},"modified":"2023-10-19T12:45:24","modified_gmt":"2023-10-19T07:15:24","slug":"differences-between-stainless-steel-304-versus-duplex-steel-2205","status":"publish","type":"post","link":"https:\/\/www.ambicasteels.com\/blog\/differences-between-stainless-steel-304-versus-duplex-steel-2205\/","title":{"rendered":"Differences Between Stainless Steel 304 Versus Duplex Steel 2205"},"content":{"rendered":"

The branding power of stainless steel<\/strong> is colossal. Its potential can be determined by its name itself. The corrosion resistance exhibition is due to 12% chromium<\/strong> with other amalgamations. The five main classes of stainless steel alloys are austenitic, ferritic, martensitic, duplex and precipitation-hardening.
\nThe austenitic stainless steel is commonly used in many industries. Duplex stainless steel is combination of almost equal proportion of austenitic and ferritic stainless steel and forms duplex microstructure. Grade 2205 is duplex stainless steel<\/a><\/strong> and offers combined properties.
\nDuplex stainless steel<\/strong> exhibits its superior properties and widely used in oil and gas industry, chemical industries etc. grade 2205<\/strong> is generally used grade of duplex stainless steel.<\/p>\n

Grade 304<\/h2>\n

Grade 304 is most commercial grade of austenitic stainless steel. It offers great corrosion resistance with high endurance of extreme temperature. The mechanical parameters, formability, weldability are considered and used in many practical applications.<\/p>\n

Grade 2205<\/h2>\n

Grade 2205 has unique properties of austenitic and ferritic in its microstructure. It chemistry comprises of high chromium and molybdenum and proves to be an excellent corrosion resistant material. Grade 2205 offers superlative corrosion resistance with high mechanical properties. It is resistant to stress corrosion cracking and pose high strength.<\/p>\n

Difference between grade 304 and 2205 stainless steel<\/h2>\n

The very basic difference between the two is grade 304 is austenitic stainless steel<\/strong>, whereas grade 2205 is duplex stainless steel. The chemical, physical and mechanical properties of grade 2205 are quite superior to grade 304.
\n\u2022 Grade 2205 pose double yield strength than grade 304
\n\u2022 Fatigue stress is good in case of grade 2205, than grade 304
\n\u2022 Grade 2205 proffers extremely superior resistance to cracking, crevice, pitting and general corrosive mediums.
\n\u2022 Products designs and applications are offered more to grade 2205.<\/p>\n

But there are few more points which shows advantages for austenitic stainless steel,
\n\u2022 Austenitic stainless has universal facet applications. It is workhorse of stainless steel industry.
\n\u2022 The plastic toughness for duplex steel is lower than austenitic stainless steel. It is not advised to use above 300\u00b0 C and below -50C\u00b0.
\n\u2022 Duplex stainless steel is pricey than austenitic. Although it is an excellent material, but should be wisely choose.
\n\u2022<\/p>\n

Chemical Composition<\/h3>\n

Grade Carbon
\n(max)% Manganese
\n(max)% Silicon
\n(max)% Phosphorus
\n(max)% Sulfur
\n(max)% Chromium
\n(max)% Nickel
\n(max)% Nitrogen
\n(max)% Molybdenum
\n(max)%
\n304 0.08 2.0 0.75 0.045 0.030 18-20 8-10 0.10 –
\n2205 0.030 2.0 0.030 0.030 0.020 21-23% 4.5-6.5 0.08-0.20 2.5-3.5<\/p>\n

Mechanical Properties<\/h3>\n

The grade 2205 shows better tensile and yield strength than grade 304. Also, duplex stainless steel<\/strong> produces better thermal conductivity than austenitic stainless steel<\/p>\n

Mechanical properties Grade 2205 Grade 304<\/strong><\/p>\n

Tensile strength 700 Mpa 515Mpa
\nProof strength0.2% 570 Mpa 205Mpa
\nHardness Brinell (max) 290 200
\nElongation 25% 40%<\/p>\n

Applications<\/h3>\n

Grade 2205<\/strong> is used in following industries and equipment:
\n\u2022 Oil and gas industry
\n\u2022 Marine industry- Equipment used in high chloride environments
\n\u2022 Paper and pulp industry<\/p>\n

Grade 304<\/strong> is extensively used in numerous industry and applications like food processing industries, Domestic and commercial kitchenware and appliances ETC.<\/p>\n","protected":false},"excerpt":{"rendered":"

The branding power of stainless steel is colossal. Its potential can be determined by its name itself. The corrosion resistance exhibition is due to 12% chromium with other amalgamations. The five main classes of stainless steel alloys are austenitic, ferritic,… <\/p>\n","protected":false},"author":1,"featured_media":2264,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-2243","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-buying-steel"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/posts\/2243","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/comments?post=2243"}],"version-history":[{"count":2,"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/posts\/2243\/revisions"}],"predecessor-version":[{"id":2265,"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/posts\/2243\/revisions\/2265"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/media\/2264"}],"wp:attachment":[{"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/media?parent=2243"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/categories?post=2243"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ambicasteels.com\/blog\/wp-json\/wp\/v2\/tags?post=2243"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}