http://www.langjuemould.com/cnc-machining/ Stainless Steel Material: CNC Stainless Steel Machining The most common and hence most frequently machined stainless steels in our cnc machine shop are the austenitic types, such as grades 304 and 316 . These are characterised by their high work hardening rates and poor chip breaking properties during machining. Stainless steel is defined as a steel alloy with a minimum of 10.5 % chromium content by mass. As the name suggests, stainless steel is steel that should stain 'less' and not corrode. It should stain less, but it is not stain-proof. It is normally thought of as being corrosion-resistant, but given the wide range of grades of stainless steel, that is actually not a very useful defining characteristic, because it is the quality and grade of the stainless steel which determine its strength and corrosion resistance por custom cnc machined parts CNC Machining stainless steel parts CNC material selection guidlines Stainless Steel Grade 鈥?Alloy 302: This is one of the most popular austenitic variety of stainless steel, which is well-known for its corrosion resistance, and ductility. The steel has a tendency to work harden, however, it can be easily overcome by slow speeds. 鈥?Alloy 303: This is the most easily machineable austenitic steel variety. This stainless steel grade exhibits excellent toughness. Sometimes sulfur addition may lower its corrosion and toughness. 鈥?Alloy 304: This stainless steel type comprises of 8% nickel, and 18% chromium, with the maximum carbon concentration of 0.07%. This austenitic stainless steel exhibits excellent corrosion resistance and offers excellent formability after CNC machining. Due to all these reasons, it is most commonly used for creating various commercial and home appliances. This steel is also easily weldable and can be easily welded using various resistance and fusion welding processes. 鈥?17-4 PH Stainless Steel: This is a martensitic stainless steel, which is precipitation hardenable. These steels provide a comprehensive combination of mechanical properties such as corrosion resistance, oxidation, etc. The mechanical properties of this steel can be easily improved by heat treatment. 鈥?Alloy 400 Series: These stainless steels have 11 percent chromium, and 1 percent manganese composition. The steels are heat treated to harden. These stainless steels have high carbon content, which contributes to its martensitic crystalline form. This structure provides high wear resistance and structural integrity after CNC machining. These steels aren鈥檛鈥?excellent corrosion or rust inhibitors. CNC machining steel parts processCNC Machining stainless steel products Stainless Steel304鈼廙ost commonly used stainless steel 鈼廘ow carbon 鈼廈etter weldability and formabilityHousehold and industrial applications: screws, machinery parts, car headers, food-handling equipment, 316鈼廔ncreased corrosion and chemical resistance over 304 鈼廔ncreased resistance to cracking and pittingMedical implants and surgical instruments, aerospace 416鈼廎ree machining 鈼廘ess corosion resistant than 300 series 鈼廋an be heat treatedApplications that need less corrosion resistance, more hardness, or lower cost 17-4 PH鈼廐igher magnetism than 304 and 316 stainless steel 鈼廜xidation and corrosion resistanceMedical, aerospace, applications needing corrosion resistance and hardnessCNC Machining manufacturers website:http://www.langjuemould.com/cnc-machining/