Good translation Metal Products (Shanghai) offers stainless steel (made of stainless steel / stainless steel imports) 440C stainless steel / 440C steel / 440C steel bar / 440C coil / 440C steel / 440C steel / 440C steel (good translation Metal Products (Shanghai) Co., Ltd. ) 
 Features applications: 
 440C has all stainless steel, heat-resistant steel in the highest hardness. For the nozzle, bearing .440 F: 440C steel is to improve the performance of the steel-cutting. For automatic lathes. Martensitic stainless steel and ordinary steel as a hardening by quenching characteristics to achieve, so by selecting the grade and heat treatment conditions to obtain a wide range of different mechanical properties. 
 440C stainless steel carbon content of C-1.2% of this is very good anti-rust steel, is used in high-volume high-quality stainless steel knives on the market, its strength and sharpness even in the ATS-34, up to 16-18% chromium content , is the second most commonly used stainless (ATS-34), Cutler is the first to be accepted by stainless steel, and has been very popular, especially in the minus processes have been developed, this kind of treatment to strengthen the resilience of steel degree. 
 Features: 
 High hardness and good wear resistance, in the polished, its drawback is that viscosity is relatively large, and the temperature quickly, but it is more likely than any steel polished, hand-sawn material is also much easier. 440C annealing temperature is low, hardness usually reach HRC56-58, corrosion resistance and toughness are very strong, are more widely used in high-quality hand-made knife and tool manufacturing plant. 
 Chemical composition 
 Chemical composition: 
 Carbon C: 0.95 ~ 1.20 
 Si Si: ≤ 1.00 
 Manganese Mn: ≤ 1.00 
 Sulfur S: ≤ 0.030 
 Phosphorus P: ≤ 0.035 
 Chromium Cr: 16.00 ~ 18.00 
 Ni: to allow containing ≤ 0.60 
 Mo Mo: ≤ 0.75 can be added 
 Mechanical properties 
 Mechanical properties: 
 Hardness: Annealed, ≤ 269HB; quenching and tempering, ≥ 58HV 
 Mechanical Properties: stress (250 N/mm2) tensile strength (560 N/mm2) EL (18%) HB (250) 
 Heat treatment process 
 Heat treatment and microstructure specifications: heat treatment specifications: 1) annealing, 800 ~ 920 ℃ slow cooling; 2) quenching, 1010 ~ 1070 ℃ oil cooling; 3) temper, 100 ~ 180 ℃ fast-cooling. 
 Microstructure: Organizing for the martensitic type. 
 Delivery status: normal to heat treatment delivery, the treatment types specified in the contract; not indicated, according to the non-heat treatment delivery 
 The company offers domestic and imported stainless steel varieties, complete specifications, special specifications can be customized processing. Division I and to provide original certificates, material certificates (chemical mechanical properties) and the like arguments! Please note that request! Users are welcome to inquire Order, the Company will be free shipping! If necessary, other materials, please call us. 
 Customers ordering materials, customers need to sample pieces of note, the MOQ: 50KG from (包邮) quantity excellent price, please call to order this material, our commitment to: quality assurance! Excellent and inexpensive price! Honesty! 

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 (Good translation Metal Products (Shanghai) Co., Ltd. published) 
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