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Beam Large Carbon Steel Casting For Forging And Press Machine

Beam Large Carbon Steel Casting For Forging And Press Machine

Casting description: Beam large carbon steel casting is widely used in forging and press machine.The world’s industrial countries, while striving to increase the output of low-alloy high-strength steel casting and alloy steel casting ,but also paying great attention to improve the quality of...

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Casting description:

Beam large carbon steel casting is widely used in forging and press machine.The world’s industrial countries, while striving to increase the output of low-alloy high-strength steel casting and alloy steel casting ,but also paying great attention to improve the quality of carbon steel casting, expanding their type and use range. At present, the proportion of carbon steel casting output in the world steel output is around 80%, it is not only widely used in buildings, bridges, railways, vehicles, ships and machinery manufacturing industry, but also in the modern petroleum chemical industry and marine development.

 

Carbon steel castings can be divided into low carbon steel casting and medium carbon steel casting and high carbon steel casting by chemical composition (i.e., carbon content).

(1) low carbon steel casting

Also called mild steel casting, carbon content from 0.10% to 0.25%.low carbon steel casting is easy to accept all kinds of processing such as forging, welding and cutting, commonly used in the manufacture of chains, rivets, bolts, shaft etc..

(2) medium carbon steel casting

Carbon content from 0.25% to 0.60% . There are many kinds of products, such as killed steel, semi killed steel and rimmed steel. In addition to carbon, but also contains a small amount of manganese (0.70% ~ 1.20%). According to the casting quality is divided into ordinary carbon structural steel casting and high-quality carbon structural steel casting. The heat treatment and cutting performance are good, and the welding performance is poor. Strength and hardness are higher than those of low carbon steel casting, while plasticity and toughness are lower than those of low carbon steel casting.The quenched and tempered medium carbon steel casting has good comprehensive mechanical properties. The highest hardness can be up to about HRC55 (HB538), and the σb is 600 to 1100MPa. Therefore, in the medium level application,the medium carbon steel casting is most widely used. Besides as building material, it is widely used in various mechanical castings.

(3) high carbon steel casting

It often refers to as tool steel, carbon content from 0.60% to 1.70% can be hardened and tempered. A hammer casting is made by 0.75% carbon content steel; cutting tools such as drills, taps, reamers that are made of carbon steel 0.90% to 1%.


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