General characteristics

Stainless chromium steel 65h13 is made in accordance with the requirements of GOST 5632−72 and the following technical conditions: 14−1-3760−84; 14−1-4105−86; 14−1-3918−85; 14−131−844−91, 14−131−764−88. Sustainable food environment and in water vapour at t° to 600° C. is Made scalpels, kitchen knives and containers, razor blades, saws, detachable blades, etc. for medical and food industry, woodworking industry, etc. Chemical composition of alloy 65KH13

Production

This steel belongs to the class of martensitic alloys. Smelted in open electric arc and induction furnaces and in vacuum-induction furnaces with subsequent vacuum arc remelting. Steel after quenching hardened as the result of the martensitic transformation. The structure of granular pearlite gives steel annealing, after quenching the hardness of steel is 197−207 N. V. the Increase of quenching temperature increases the proportion of residual austenite. The maximum hardness is reached at a temperature of 1050 °C. Hot deformation is carried out in the temperature range 1100 — 900 °C. the blanks produced with the help of rolling a varietal — drawing. In the process of rapid cooling, the formation of cracks. Tempering of steel is performed at a temperature of 1045 °C and leave — at 200 °C.

Physical properties at 20°C

— Conductivity 0,147· 102 W/(m · K)

— Specific weight of 7.67 g/cm³

— Modulus 18 · 10^{— 4} N/mm²

— Specific electrical resistivity of 0.68 Omhm²/m

— Specific heat is 0,504 · 103, j/(kg · K);

— Magnetic permeability 1,255 micro Tesla/m

The corrosion rate

— in moist ammonia and hydrogen sulfide atmosphere up to 0.005 mm/year;

in the solution containing hydrogen sulphide at saturation 2.5 g/l, less 0,0135 mm/year;

— in an aqueous solution of ammonia at t° 20 °C to 0.006 mm/year; and 90 °C — about to 0,097 mm/year;

— in a mixture of aliphatic hydrocarbons at a temperature of 20−90°C to 0,003 mm/year;

Use

This alloy is popular in the medical and food industry (scalpels, knives, blades, razors, saws, detachable blades, etc.) and wood processing industry. Products made from this steel meet the highest requirements of corrosion resistance and can withstand repeated thermal processing is necessary for medical instruments. You can process them in the washing machines, they do not lose their properties in chlorinated water.

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