One of the advantages of gray iron castings is their good casting properties. Gray iron has high liquid fluidity, is easy to cast, and has a low solidification shrinkage rate, can get a relatively small casting size. In addition, the shrinkage performance of gray iron castings is better, which can effectively avoid casting defects and improve the quality stability of products.
Gray iron castings have high strength and hardness. The graphite particles in gray iron can effectively prevent the slip of the crystal and improve the strength and hardness of the material. Therefore, gray iron castings have better durability and anti-wear properties in the case of greater load and wear.
Gray iron castings also have some disadvantages. The plasticity and toughness of gray iron castings are poor, and it is easy to fracture. The thermal expansion coefficient of gray iron castings is large, which is easy to produce thermal stress, resulting in deformation and cracking of castings. In addition, gray iron castings have poor corrosion resistance and are easily affected by environmental factors such as oxidation and corrosion.
Although gray iron castings have some shortcomings, they are still widely used in many fields. Gray iron castings are widely used in the field of machinery manufacturing, such as engine cylinder block, machine tool bed and so on. Gray iron castings also have important applications in the field of construction, such as drainage pipes, manhole covers, etc. In addition, gray iron castings are also widely used in automobile manufacturing, agricultural machinery manufacturing, shipbuilding and other industries.
Gray iron casting, as a common casting material, has a series of advantages and disadvantages. When selecting gray iron castings, it is necessary to comprehensively consider the specific application needs and environmental conditions. With the continuous progress of science and technology, the performance and quality of gray iron castings are also constantly improving, and there will be broader application prospects.
Hebei Mingda International Trading Company is a trading company which is specialized in castings, ODM Ductile Iron Manhole Cover forgings and machinery parts.Our products include all kinds of raw castings to be made of ductile iron , grey iron , brass , stainless steel and aluminums, machined castings and forged parts .ODM Ductile Iron Covers To make these parts according to the customers’Custom Iron Casting drawings , we have relative suitable production craft and equipments, such as resin sand , sand mould , hot core boxes , lost-wax , lost –foam and so on Iron Casting Manufacturer Custom.Specially for hydrant bodies and valves’Ductile Iron Manhole Cover Manufacturer bodies, we have collected rich experience for these products in the past 16 year’s actual production, Now we are proud of our products with good surface and high quality material. Iron Casting ManufacturerWhatever,we have been trying our best to provide our customers with better quality castings by improving production crafts and more careful quality control.Cast Iron Castings Manufacturer