The electrodeposition of metals from methylsulphate electrolytes is of particular interest at present.  We studied physico-mechanical properties of iron coatings that were deposited from methylsulphate electrolyte proposed by I.V. Dushevskii (methylsulphate iron is 350 g/l, pH is 1.7, current density is 10 A/dm², and the temperature of the electrolyte is 40⁰C).^.   The methylsulphate electrolyte was prepared in three stages: 1. Obtaining methylsulphuric acid; 2. Obtaining calcium salt of methylsulphuric acid; 3. Obtaining methylsulphate iron by adding the calculated amount of ferric sulphate to the solution of calcium salt of methylsulphuric acid.  It is shown that the iron coatings that were obtained are of high microhardness (740 kg/mm²) (compared to those electrodeposited from the other electrolytes of iron plating), which can be explained, according to the X-ray analyses, by their fine structure (the deposits are X-ray amorphous, with a limited number of microfractures). The structure of the coatings is changed with heating in the temperature range of 300--700⁰C: after heating to 400⁰C, the growth of the grain sizes is observed (the peak of crystalline iron is found to appear at the diffractograms). Metallographic analyses showed that the composition of the coatings comprises 1--2 µm inclusions, which can affec  electrolyte is highly effective; the current efficiency of iron reaches 94% depending on the conditions of electrolysis. Polarization measurements showed that the high current efficiency of iron occurs due to a high overvoltage of the discharge of hydrogen ions resulted from a specific adsorption of methylsulphate ions (CH₃OSO₃^-) on the deposited surface; hydrogen absorption is decr  eased in this case. On the basis of the current efficiency, we calculated the partial curves of the discharge of iron and hydrogen ions. A substantial decrease is shown in the share of the current consumed by the hydrogen reduction compared to the sulfuric electrolyte with identical pH t  the formation of their structure.  Methylsulphate and temperature.  The coatings that were obtained from methylsulphate electrolyte are characterized by high adhesion, which can be attributed both to the low content of hydrogen in them and small stresses of the I kind (up to 900 kg/cm²); under certain conditions (pH<1.6), coatings with internal compressive stresses can be obtained.  Friction and wear testing both at dry and lubricated friction showed that the manufactured coatings have a high wear resistance compared to the iron coatings deposited from chloride electrolyte. The advantages of the coatings from methylsulphate electrolytes were largely exhibited at high loads.     This electrolyte was used in auto repair shops for the reconditioning of the worn parts, and it showed good results.