ABS ocean engineering services: Cast steel can be divided into two categories based on its chemical composition: carbon cast steel and alloy cast steel. Among them, carbon cast steel is the most widely used, accounting for over 80% of the total cast steel production.
1. Carbon cast steel
Generally, low carbon steel ZG15 has a high melting point and poor casting performance, and is only used for manufacturing motor parts or carburized parts; Medium carbon steel ZG25~ZG45 has comprehensive properties higher than various types of cast iron, namely high strength, excellent plasticity and toughness. Therefore, it is suitable for manufacturing parts with complex shapes and high requirements for strength and toughness, such as train wheels, forging hammer frames and anvils, rollers and high-pressure valves. It is the most widely used type of carbon cast steel; The melting point of high carbon steel ZG55 is low, and its casting performance is better than that of medium carbon steel. However, its plasticity and toughness are poor, and it is only used to manufacture a few wear-resistant parts.
2. Alloy cast steel
According to the total amount of alloying elements, alloy cast steel can be divided into two categories: low-alloy steel and high alloy steel.
1) Low alloy cast steel is mainly used in China, including manganese based, manganese silicon based, and chromium based materials. Such as ZG40Mn, ZG30MnSi1, ZG30Cr1MnSi1, etc. ZG40Cr1 is commonly used to manufacture important load-bearing components such as gears, hydraulic press cylinders, and turbine rotors, while ZG40Cr1 is commonly used to manufacture high-strength gears and high-strength shafts.
2) High alloy cast steel has special properties such as wear resistance, heat resistance, or corrosion resistance. High manganese steel ZGMn13 is a type of wear-resistant steel mainly used for manufacturing parts used under dry friction working conditions, such as the front wall and teeth of excavator grab buckets, and the tracks of tractors and tanks; Chromium nickel stainless steel ZG1Cr18Ni9 and chromium stainless steel ZG1Cr13 and ZGCr28 have high corrosion resistance to nitric acid and are mainly used to manufacture parts for equipment in chemical, petroleum, chemical fiber, and food industries.
Changshu Hongqiao Cast Steel Co., Ltd. mainly produces various specifications of carbon steel, high, medium and low alloy steel, stainless steel, heat-resistant steel, high manganese steel, and high chromium cast iron. We provide high-quality steel castings for industries such as petroleum, chemical, metallurgical, mining machinery, coal mining machinery, wind power, nuclear power, and marine. We also offer customized steel castings for marine use, ABS marine engineering services, and export them overseas.