{"id":536,"date":"2026-02-24T08:58:58","date_gmt":"2026-02-24T08:58:58","guid":{"rendered":"https:\/\/www.jccncmachining.com\/material\/\/"},"modified":"2026-02-24T08:58:58","modified_gmt":"2026-02-24T08:58:58","slug":"stainless-steel-duplex-2205","status":"publish","type":"material_model","link":"https:\/\/www.jccncmachining.com\/fr\/materials\/stainless-steel\/stainless-steel-duplex-2205\/","title":{"rendered":"Stainless Steel Duplex 2205"},"content":{"rendered":"

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Duplex 2205 Machining Capabilities<\/h3>\n\n\n\n\n\n\n\n\n
Capability<\/th>\nTechnical Description<\/th>\nJucheng Advantage<\/th>\n<\/tr>\n<\/thead>\n
Heavy-Duty Turning<\/strong><\/td>\n2205 is twice as strong as 316 and extremely tough. We use high-rigidity lathes with geared spindles to handle the high cutting forces.<\/td>\nOur capability to machine large diameter flanges and valve bodies (up to 800mm) ensures stability and chatter-free finishes.<\/td>\n<\/tr>\n
Chip Control Strategies<\/strong><\/td>\nDuplex produces strong, stringy chips that are hard to break. We utilize high-pressure coolant (70 bar) and specialized chip-breaking inserts.<\/td>\nPrevents chip wrapping and tool damage, allowing for automated production of critical oil & gas components.<\/td>\n<\/tr>\n
Deep Hole Drilling<\/strong><\/td>\nDrilling manifolds in 2205 requires specialized carbide drills to penetrate the work-hardened surface without seizing.<\/td>\nWe successfully machine high-pressure fluid channels with precise straightness and surface finish.<\/td>\n<\/tr>\n
Thread Milling<\/strong><\/td>\nCutting large API or NPT threads in Duplex using thread mills to minimize tool pressure and risk of tap breakage.<\/td>\nEnsures perfect thread profiles for high-pressure sealing applications where a stripped thread means a scrapped expensive part.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Fabrication Guidelines for Duplex 2205<\/h3>\n

Machinability Warning:<\/strong>
\nDuplex 2205 is significantly harder to machine than 316L. Cutting speeds must be reduced by ~20%, and tool life is shorter. Tip:<\/strong> Plan for higher machining costs due to increased cycle time and tooling consumption.<\/p>\n

Work Hardening:<\/strong>
\nLike austenitic stainless, Duplex work-hardens, but more rapidly. Tip:<\/strong> Use aggressive feed rates and never let the tool dwell. “Babying” the cut will cause immediate surface hardening.<\/p>\n

Stress Corrosion Resistance:<\/strong>
\nThe primary reason to use 2205 is its resistance to Chloride Stress Corrosion Cracking (SCC), which causes 304\/316 to fail in hot saltwater. Tip:<\/strong> Ideal for subsea or desalination equipment.<\/p>\n<\/div>\n

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Primary Applications<\/h3>\n

Oil & Gas Industry<\/strong>
\nSubsea manifolds, Christmas tree valves, and downhole tools exposed to sour gas (H2S) and high pressure.<\/p>\n

Desalination Plants<\/strong>
\nHigh-pressure pumps, reverse osmosis piping, and evaporators handling hot, concentrated brine.<\/p>\n

Chemical Processing<\/strong>
\nPressure vessels and heat exchangers handling aggressive chlorides and acids where 316L life is too short.<\/p>\n

Pulp & Paper<\/strong>
\nDigesters and bleaching equipment requiring high strength and corrosion resistance.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Duplex 2205 Machining Capabilities Capability Technical Description Jucheng Advantage Heavy-Duty Turning 2205 is twice as strong as 316 and extremely tough. We use high-rigidity lathes with geared spindles to handle the high cutting forces. Our capability to machine large diameter flanges and valve bodies (up to 800mm) ensures stability and chatter-free finishes. Chip Control Strategies […]<\/p>\n","protected":false},"featured_media":537,"template":"","meta":[],"class_list":["post-536","material_model","type-material_model","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/material_model\/536","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/material_model"}],"about":[{"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/types\/material_model"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/media\/537"}],"wp:attachment":[{"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/media?parent=536"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}