1. 40cr steel plate specifications and models.
40cr steel plate can be cut for retail, 40cr steel plate is a medium carbon quenched and tempered steel, which has been widely used in the machinery manufacturing industry because of its good comprehensive mechanical properties. According to different uses and process requirements, there are a variety of specifications and models of 40cr steel plate, and the following are the common specifications and models and their characteristics:
1.Ordinary specification model.
The thickness of 40cr steel plate of ordinary specifications and models is generally between 3mm-300mm, which is mainly used to manufacture various shafts, bolts, gears, brackets and other parts. Its specifications and models are: 40cr, 45cr, 50cr, 42crmo, 35crmo, etc.
2.Extra-thick specification model.
The thickness of the 40cr steel plate of the extra-thick specification model is generally more than 300mm, which is mainly used to manufacture large machinery and equipment, ships, bridges and other structural parts. Its specifications and models are: 40CRH, 45CRH, 50CRV, etc.
3.Wear-resistant specifications and models.
The 40cr steel plate of wear-resistant specifications is based on ordinary specifications and models, and its wear resistance is improved by increasing carbon content and adding alloying elements, which is mainly used to manufacture wear-resistant parts. Its specifications and models are: 40crmn, 40crmnmo, etc.
4.High-strength specification model.
The high-strength specification model of 40cr steel plate is mainly used for parts bearing large loads by means of heat treatment and alloy element adjustment to improve its tensile strength and yield point. Its specifications and models are: 40crni, 40crnimo, etc.
Second, the introduction of 40cr steel plate.
40Cr steel plate is a kind of medium carbon quenched and tempered steel, its chemical composition is mainly composed of C, SI, MN, CR and other elements, with good hardenability, tempering stability and corrosion resistance. Its tensile strength is generally between 160-210MPa, the yield point is between 980-1380MPa, and the elongation after fracture is greater than 8%. In the machinery manufacturing industry, 40cr steel plate is mainly used to manufacture various shafts, bolts, gears, brackets and other parts, especially in the automobile manufacturing industry.
3. 40cr steel plate production process.
1.Smelting and continuous casting.
According to the requirements of the order, the quality inspection and preparation of raw materials are carried out. The electric furnace or converter is used for smelting, and the refining process removes impurities and gases to ensure the purity of the molten steel. The treated molten steel is injected into the caster to form a billet of a certain specification.
2.Rolling & Finishing.
According to the different customer requirements and specifications, different rolling processes and equipment are used to roll the billet to obtain the required thickness and size of the steel plate. The surface cleaning and finishing of the rolled steel plate are carried out to ensure its surface quality and dimensional accuracy.
3.Inspection & Packing.
Carry out quality inspection on the finished steel plate, including appearance quality, dimensional accuracy and performance indicators. Carry out packaging design according to customer requirements, adopt appropriate packaging materials and methods, and ensure the safety and stability of products in the process of transportation and storage.