{"id":338,"date":"2026-01-21T06:13:23","date_gmt":"2026-01-21T06:13:23","guid":{"rendered":"https:\/\/www.jccncmachining.com\/?post_type=material&p=338"},"modified":"2026-02-24T09:10:03","modified_gmt":"2026-02-24T09:10:03","slug":"aco-inoxidavel","status":"publish","type":"material","link":"https:\/\/www.jccncmachining.com\/pt\/materials\/stainless-steel\/","title":{"rendered":"A\u00e7o Inoxid\u00e1vel"},"content":{"rendered":"

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Classes de A\u00e7o Inoxid\u00e1vel Dispon\u00edveis<\/h3>\n\n\n\n\n\n\n\n\n\n\n
Grau<\/th>\nNome Comum<\/th>\nCaracter\u00edsticas Principais<\/th>\nAplica\u00e7\u00f5es T\u00edpicas<\/th>\n<\/tr>\n<\/thead>\n
SS 303<\/strong><\/td>\nA\u00e7o de Usinagem Livre<\/td>\nO enxofre adicionado o torna o inoxid\u00e1vel mais f\u00e1cil de usinar. Menor resist\u00eancia \u00e0 corros\u00e3o que o 304.<\/td>\nPorcas, parafusos, buchas, conex\u00f5es, eixos n\u00e3o expostos a elementos agressivos.<\/td>\n<\/tr>\n
SS 304 \/ 304L<\/strong><\/td>\nA\u00e7o Inoxid\u00e1vel 18\/8<\/td>\nO grau mais comum. Excelente resist\u00eancia \u00e0 corros\u00e3o, boa conformabilidade. Mais dif\u00edcil de usinar que o 303.<\/td>\nEquipamentos de cozinha, tubula\u00e7\u00f5es industriais, pain\u00e9is arquitet\u00f4nicos, acabamentos automotivos.<\/td>\n<\/tr>\n
SS 316 \/ 316L<\/strong><\/td>\nGrau Mar\u00edtimo<\/td>\nCont\u00e9m Molibd\u00eanio para resist\u00eancia superior a cloretos e \u00e1cidos. Biocompat\u00edvel.<\/td>\nImplantes m\u00e9dicos, ferragens mar\u00edtimas, equipamentos de processamento qu\u00edmico.<\/td>\n<\/tr>\n
17-4 PH<\/strong><\/td>\nEndurecimento por Precipita\u00e7\u00e3o<\/td>\nPode ser tratado termicamente para alta dureza\/resist\u00eancia. Boa resist\u00eancia \u00e0 corros\u00e3o. Magn\u00e9tico.<\/td>\nPe\u00e7as estruturais aeroespaciais, p\u00e1s de turbina, moldes de conforma\u00e7\u00e3o.<\/td>\n<\/tr>\n
SS 420<\/strong><\/td>\nGrau para Cutelaria<\/td>\nA\u00e7o martens\u00edtico com alta dureza. Boa resist\u00eancia ao desgaste, mas menor resist\u00eancia \u00e0 corros\u00e3o.<\/td>\nInstrumentos cir\u00fargicos, l\u00e2minas de faca, l\u00e2minas de tesoura, v\u00e1lvulas de agulha.<\/td>\n<\/tr>\n
SS 416<\/strong><\/td>\nMartens\u00edtico de Usinagem F\u00e1cil<\/td>\nF\u00e1cil de usinar, capaz de alta dureza. Menor resist\u00eancia \u00e0 corros\u00e3o.<\/td>\nEixos de motores, pe\u00e7as de bombas, engrenagens, componentes de v\u00e1lvulas.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Capacidades de Usinagem de A\u00e7o Inoxid\u00e1vel<\/h3>\n\n\n\n\n\n\n\n\n
Capacidade<\/th>\nDescri\u00e7\u00e3o T\u00e9cnica<\/th>\nVantagem Jucheng<\/th>\n<\/tr>\n<\/thead>\n
Fresamento de Alto Torque<\/strong><\/td>\nUsando m\u00e1quinas CNC r\u00edgidas com alto torque em baixa rota\u00e7\u00e3o para cortar a\u00e7o inoxid\u00e1vel resistente sem vibra\u00e7\u00e3o.<\/td>\nNossas m\u00e1quinas Mazak de servi\u00e7o pesado previnem vibra\u00e7\u00e3o, garantindo acabamentos suaves mesmo em graus duros como 17-4PH.<\/td>\n<\/tr>\n
Torneamento Tipo Su\u00ed\u00e7o<\/strong><\/td>\nUsinagem com cabe\u00e7ote deslizante para pe\u00e7as longas e esbeltas de a\u00e7o inoxid\u00e1vel, como pinos e eixos m\u00e9dicos.<\/td>\nCapaz de manter toler\u00e2ncias de +\/- 0,005mm para componentes m\u00e9dicos de alta precis\u00e3o ISO 13485.<\/td>\n<\/tr>\n
Usinagem de Metais Duros<\/strong><\/td>\nProcessamento de a\u00e7os inoxid\u00e1veis tratados termicamente (at\u00e9 HRC 45) usando ferramentas de metal duro especializadas e revestimentos.<\/td>\nElimina a necessidade de retifica\u00e7\u00e3o p\u00f3s-usinagem em muitas aplica\u00e7\u00f5es, reduzindo custos.<\/td>\n<\/tr>\n
Passiva\u00e7\u00e3o de Superf\u00edcie<\/strong><\/td>\nChemical treatment (Nitric or Citric acid) to remove free iron and enhance the natural oxide layer.<\/td>\nIn-house handling ensures parts meet ASTM A967 standards for maximum corrosion resistance.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Fabrication Guidelines for Stainless Steel<\/h3>\n

Sele\u00e7\u00e3o de Ferramentas:<\/strong>
\nStainless steel tends to “work harden” if cut improperly. We use premium coated carbide tools (TiAlN coating) with sharp cutting edges to shear the material cleanly rather than plowing through it.<\/p>\n

Estrat\u00e9gia de Refrigera\u00e7\u00e3o:<\/strong>
\nDue to low thermal conductivity, heat stays in the cut. We employ high-pressure flood coolant to dissipate heat rapidly, preventing thermal expansion and extending tool life.<\/p>\n

Feed Rates & Speeds:<\/strong>
\nIt is critical to maintain a constant feed rate. Dwelling or rubbing allows the material to harden instantly, destroying the tool. We optimize tool paths to keep the cutter engaged and moving.<\/p>\n

Rigidity:<\/strong>
\nWorkholding must be extremely rigid. Any vibration can lead to poor surface finish and tool failure. We use hydraulic vices and custom fixtures to secure stainless steel parts firmly.<\/p>\n<\/div>\n

<\/p>\n

\n

Principais Ind\u00fastrias de Aplica\u00e7\u00e3o<\/h3>\n

Dispositivos M\u00e9dicos (Certificado ISO 13485)<\/strong>
\nPe\u00e7as-Chave:<\/em> Surgical scalpels, bone screws, implants, dental instruments.
\nWhy Stainless Steel:<\/em> Grades like 316L and 17-4PH offer biocompatibility, sterilization resistance, and high strength.<\/p>\n

Processamento de Alimentos e Bebidas<\/strong>
\nPe\u00e7as-Chave:<\/em> Mixing blades, valves, conveyor components.
\nWhy Stainless Steel:<\/em> The smooth, non-porous surface of 304\/316 prevents bacterial growth and withstands harsh cleaning chemicals.<\/p>\n

Marine & Oil\/Gas<\/strong>
\nPe\u00e7as-Chave:<\/em> Undersea valves, fasteners, sensor housings.
\nWhy Stainless Steel:<\/em> 316L provides excellent resistance to chloride (saltwater) corrosion and pitting in harsh environments.<\/p>\n

Aeroespacial<\/strong>
\nPe\u00e7as-Chave:<\/em> Actuators, landing gear components, structural fittings.
\nWhy Stainless Steel:<\/em> Precipitation-hardening grades (17-4PH) deliver high strength-to-weight ratios and heat resistance.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Available Stainless Steel Grades Grade Common Name Key Characteristics Typical Applications SS 303 Free-Machining Steel Added sulfur makes it the easiest stainless to machine. Lower corrosion resistance than 304. Nuts, bolts, bushings, fittings, shafts not exposed to harsh elements. SS 304 \/ 304L 18\/8 Stainless The most common grade. Excellent corrosion resistance, good formability. Harder […]<\/p>\n","protected":false},"featured_media":350,"template":"","meta":[],"material_type":[9],"material_attribute":[],"application_feature":[23,20,22],"machining_process":[25,26,27,28,29],"class_list":["post-338","material","type-material","status-publish","has-post-thumbnail","hentry","material_type-metal","application_feature-corrosion-resistant","application_feature-high-strength","application_feature-high-temp"],"_links":{"self":[{"href":"https:\/\/www.jccncmachining.com\/pt\/wp-json\/wp\/v2\/material\/338","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jccncmachining.com\/pt\/wp-json\/wp\/v2\/material"}],"about":[{"href":"https:\/\/www.jccncmachining.com\/pt\/wp-json\/wp\/v2\/types\/material"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/pt\/wp-json\/wp\/v2\/media\/350"}],"wp:attachment":[{"href":"https:\/\/www.jccncmachining.com\/pt\/wp-json\/wp\/v2\/media?parent=338"}],"wp:term":[{"taxonomy":"material_type","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/pt\/wp-json\/wp\/v2\/material_type?post=338"},{"taxonomy":"material_attribute","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/pt\/wp-json\/wp\/v2\/material_attribute?post=338"},{"taxonomy":"application_feature","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/pt\/wp-json\/wp\/v2\/application_feature?post=338"},{"taxonomy":"machining_process","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/pt\/wp-json\/wp\/v2\/machining_process?post=338"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}