Advantages, disadvantages and applications of alloy steel, high manganese steel, high chromium cast iron, heat-resistant steel and ductile iron
Different processing materials will affect the processing difficulty, cost and performance of the final parts due to their different characteristics. Therefore, it is very important to choose the appropriate processing materials. The following will introduce alloy steel, high manganese steel, and high chromium cast iron. , the advantages and disadvantages of heat-resistant steel and its applicable fields.
Alloy steel is a type of steel containing one or more alloying elements (such as Cr, Ni, Mo, V, W, Nb, etc.). Because it contains multiple alloying elements, it has the advantages of improving the hardness, strength and corrosion resistance of steel. , suitable as a material for parts requiring specific strength and corrosion resistance such as automobile engines and machine tools.
Alloy steel can be divided into low alloy steel and high alloy steel by adjusting the alloy element content. Low alloy steel has an alloy element content of less than 5% and is suitable for general purposes, while high alloy steel has an alloy element content of more than 8%. It is used for parts that emphasize performance improvement, but the manufacturing process of high-alloy steel is complicated, high cost and the alloy content is too high, making it difficult to process and making it difficult to process, which are the disadvantages that need to be considered.
High Manganese Steel
High manganese steel is a high alloy steel with a manganese content of more than 10% and a carbon content of 0.8~1.5%. It has the advantages of high strength, high toughness and high wear resistance. It can withstand a large amount of impact and wear and is suitable for manufacturing excavations. Soil machinery (chains, shovel teeth and bucket teeth), various types of powder (crushing) crushers (casings, outer covers, linings and hammers), cement plants (hammer heads and various types of screen plates), railways (rails, bifurcations) machine) and other parts, but the disadvantage is that the processing cost is high.
High Chromium Cast Iron
High chromium cast iron usually contains chromium content ranging from 15 to 28%. The advantages of high chromium cast iron include high hardness, heat resistance and corrosion resistance. It has high hardness and appropriate heat resistance and corrosion resistance. It is widely used in sandblasting machines ( Blades, distributors and control cages), pulp cutterheads, cement plants (grinding balls and various screen plates), sand pumps and impellers, steel plants (various lining plates and screen plates, coal grinding balls and discs) , impact block, gravity bar and roller) and other parts. The disadvantage of high-chromium cast iron is that it is prone to cracks during processing, and special attention needs to be paid to the cooling and processing processes.
Heat-resistant steel is a high-alloy steel with Cr-Ni as the main element. It can maintain stability in high-temperature environments and is usually suitable for environments above 600°C. Its advantages such as heat resistance, corrosion resistance, oxidation resistance, and creep resistance make it popular. Used to make steel plants (heating furnace rollers, radiant tubes and slide rails), heat treatment plants (pallets, pillars and circulating blades), petrochemical plants (various pipe joints and manifolds, cracking furnaces and reforming furnaces) pipes), incinerators (sieve frames, grates and linings), automobiles (exhaust manifolds, turbocharger casings) and other industrial parts.
Ductile Iron (FCD Cast Iron)
Ductile iron is also called spheroidal graphite cast iron and ductile cast iron. The graphite in ductile iron is spherical, and the circular nodules can inhibit the occurrence of cracks, thus providing enhanced ductility. In addition, it also has the advantages of high strength and processability. Commonly used in pans, water pipes and pipe fittings, various manhole covers and bases, check valves, automobiles (crankshafts, brake calipers and brake cylinders), hydraulic cylinders and hydraulic bodies, and sheet metal stamping molds. However, compared with ordinary gray cast iron, the cost of ductile iron is higher, and its high hardness may cause certain difficulties during processing.
Steel casting manufacturers
Qiaofushen's rich processing materials can provide customers with a variety of choices and solutions. If your spare parts focus on performance improvement and require specific strength, alloy steel is suitable as your processing material. If you emphasize wear resistance and impact resistance, it is recommended. You choose high manganese steel. If you need to adapt to heat-resistant and corrosion-resistant environments, you may consider choosing high-chromium cast iron or heat-resistant steel. We can meet the manufacturing of spare parts for different industries and needs. If you need spare parts processing, please feel free to write to us!
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