Steel is one of the most commonly used materials for construction machinery parts. It has a variety of properties, and its main components are iron and carbon. Steel is refined iron. We usually call it iron alloy steel. In order to ensure its strength and plasticity, the carbon content generally does not exceed 1.7%. In addition to iron and steel, the main elements of steel are silicon, carbon manganese, sulfur, phosphorus and so on.

Common steel & Surface treatment
Steel	20#、Q235、45#、A2、D2、16MnCr5、30CrMo、38CrMo、40CrNiMo3、S50C、65Mn、SCM415、40Cr、Cr8
	Cr12、SKD61、DC53、12L14、Y12pb、Y15、Y35、Y40Mn、S5、T10、S355、16MnCr5
	6150、SCM435、St37、410、416、420、430、4140、4130、240N、Stell、SKS3、38CrMOAl、20CrNiMo
	P20、SUJ2、SK3、15CrMo、20CrMo、35CrMo、GS2316、CD650、ASP-23O1、A6、XW-5、XW-10、XW-41
	C1065、NAK55、NAK80、HPM1、HPM77、HPM75、718H、738H、DF-3,etc.
Surface treatment	Chromate Plating、Hard chromium plating、Electroless Nickel/Nine/Zinc Plate、QPQ、DLC
	Black Oxide、SilverGolden plating、TIN PlatingTungsten Carbide Coating、sand blasting
	phosphating、TiN-plating、chromium plating、AlCrN COAT、Polyurethae coating,etc.

The surface treatment and plating of many products can be selected in a variety of colors, whether it is in function or the appearance of the product use requirements can better meet the needs of customers, customers can also be considered as a general reference standard in the design process!The main component of alloy steel is iron. In order to increase its strength, other elements other than iron and carbon are intentionally added. The most commonly added alloying elements are silicon, manganese, chromium, nickel, molybdenum, tungsten, vanadium, titanium, niobium, boron, aluminum, etc. The total content of gold elements in alloy steel can be less than 1%, and can be as high as ten to twenty. According to different components, it can be divided into carbon steel and alloy steel. According to different properties and uses, it can be divided into structural steel, tool steel and special performance steel.Generally speaking, the hardness of steel parts is low. In order to enhance the hardness of the workpiece itself, improve the performance of mechanical parts, and make it better play its advantages, vacuum heat treatment, carburizing, gas nitriding, QPQ, DLC, etc. can be carried out. and various electroplating can be carried out at the same time to enhance its corrosion resistance, wear resistance and aesthetics.The common steel and surface treatment as follow.● CNC steel Turning、Steel Turning ● CNC steel Milling、Steel Milling ● Steel turn-milling machiningOther material processing In addition to using iron materials in processing, materials such as aluminum parts, copper parts, stainless steel, and process plastics are also widely used in precision machinery manufacturing.