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Steel for knives 50H14MF (EI128)


Grade analogue W. Nr. Aisi Uns En Order
50Х14МФ EI128 Buy from stock, view availability


Stainless steel 50Х14МФ are manufactured in accordance with GOST R50 328 1−92 and international standard MSO 7153/1−88. The alloy composition contains: chrome 14−15%, silicon and manganese of 0.6%, carbon — 0,48−0,55%, molybdenum — 0,45−0,8%, vanadium 0.1% to 0.15%, sulfur, phosphorus in thousandths of a percent. The base is iron.

Percentage composition

Fe C Cr Mo Mn S V P Si
Basis 0,48−0,55 14−15 0,45−0,8 ≤0,6 ≤0,03 0,1−0,15 ≤0,03 ≤0,6

Technical characteristics

This alloy belongs to the class of martensitic steel is smelted in open electric arc and induction furnaces or vacuum induction furnaces with subsequent vacuum arc remelting. Rolled steel after quenching hardened as the result of the martensitic transformation, the optimum hardness is achieved by quenching temperature of 1050 °C. the Structure of granular perlite gives the annealing, after quenching the hardness is 197−207 HB-1. In the temperature range 900 — 1100 °C, this steel products of this brand is easy to hot deformation. The blanks produced by rolling a varietal — drawing. During fast cooling, the formation of cracks.

The corrosion rate

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

— in a solution containing hydrogen sulphide (saturation 2.5 g/l), less 0,0135 mm/year;

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

— in a mixture of aliphatic hydrocarbons (t° 20−90°C) up to 0,003 mm/year;

Requirements for the microstructure according to the standard GOST 8233−56

Assortment, THAT Granular pearlite (scale 2) Carbide mesh (scale 5) Carbide heterogeneity (scale 66) Depth bezoperatsionnogo layer
Sheet thickness 2−3,9 mm, TU 14−130−280−96 4−6 No more than 3 No more than 3 No more than 5% of the thickness of the sheet
Sheet thickness of 0,8−2 mm, Technical agreement No. 36 - - - No more than 5% of the thickness of the sheet
Sheet thickness 2−3,9 mm, TD No. 132−140−93 4−6 to 3 to 3 Controlled
Rod Ø4−12mm TU 14−1-3909−85 3−5 ≤ 2 ≤ 2 Not allowed
Tape with a thickness of 0.4 mm Technical agreement No. 12 4−6 - - up to 5% of the thickness of the sheet

Steel for knives 50Х14МФ (эи128) is used in medical industry (in the manufacture of cutting tools, for example, a removable surgical blade, all-metal scalpels); and knives in the food 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.


Where to buy steel for knives 50Х14МФ wholesale or in installments? Supplier «Auremo» offers to buy steel for knives 50Х14МФ on favorable terms. Large selection of semi-finished products in the warehouse. Compliance with GOST and international quality standards. Buy today. The wholesale customers are price — reduced.

To buy, best price

In stock company «Auremo» features unlimited range of stainless steel martensitic class. We offer products from specialized stores retail and wholesale quantities with delivery to any region. Always available steel for knives 50Х14МФ, the price is optimal from the supplier. Products are certified and available. The price depends on order volume and additional conditions. Deliveries are made promptly. To buy steel for knives 50Х14МФ today. For wholesale purchases there is a reduced discount. We have the best ratio price-quality.