Implementation and Evaluation of i-P-Cr 3 C 2 -NiCr Composite Coatings Properties on Low Carbon Steel Bases : Electroless deposition of metals and alloys has a lot of diverse applications in current modern industries like electrical equipments, anti- corrosion and wear resistant materials, medicine equipments and batteries. This method is considered as a supplemental method for electrochemical processes Electroless coatings in last decades have been the center of focus due to high hardness and wear resistance, bearing high temperatures up to 800 Celsius, coating of narrow hollows and uniformity of the final coatings, ease of coating process and fair cost. Use of electroless and electrochemical coatings in industry in last decades has had a progressive development. After 1990, a new generation of the coatings was created that were made by co deposition of solid particles with metal matrix and making a composite coating. Composite coatings due to having special characteristics of metal matrix like corrosion, wear resistance and high temperature capability and having solid particles characteristics like hardness and lubricity have found their stand in industry and has had a lot of different practical applications. Chromium carbide Nickel Chrome powder has high hardness that increase the overall hardness of the coating The powder with the core of Chromium Carbide and a layer of Nickel Chrome around it increases the adhesion of the powder to the matrix Cr 3 C 2 -NiCr powder with different percents was immersed in the bath and as a result different volume percent of second particles in the coating was created. The main goal of this article is finding, the effective parameters governing the structure, surface quality and tribological behavior of Ni-P- Cr 3 C 2 -NiCr composite coatings has been iected, compared and analyzed. For creating such coatings, the Cr 3 C 2 - NiCr particles were immersed in bath by implementing electroless nickel process and coated on the steel base. The optimum coating parameters were determined according to deposition rate, particles distribution uniformity on the surface and cross section of the coating and final coatings quality. For obtaining diverse coatings containing Cr 3 C 2 -NiCr particles, 1, 4, 8 and 11 gram per liters of Cr 3 C 2 -NiCr particles in bath were used. As a result, the coatings contained 13, 20, 26 and 34 volume percent Cr 3 C 2 -NiCr particles. After facing the coatings in different heat treatment cycles, the temperature 400 oc and time 1 hour was the optimum working heat treatment cycle. In spite of that, the final coatings on the steel base were evaluated by Optical