About 0.10%~0.40%, solid solution enhancement; In addition to the bad effect of FeO on steel quality, it is beneficial

About 0.25%~0.80%. Solid solution strengthening; Remove FeO, reduce the brittleness of steel; Synthesis of MnS with vulcanization can reduce the harmful effects of sulfur. Good for you

manganese

About 0.25%~0.80%. Solid solution strengthening; Remove FeO, reduce the brittleness of steel; Synthesis of MnS with vulcanization can reduce the harmful effects of sulfur. Good for you.

silicon

About 0.10%~0.40%, solid solution enhancement; In addition to the bad effect of FeO on steel quality, it is beneficial.

sulfur

FeS forms a low melting point co-crystal with Fe (melting point 985℃), which causes the steel to become brittle and crack during hot working at 1000~1250℃, "hot brittle". Harmful.

phosphorus

The strength and hardness increase, but the plasticity and toughness reduce, "cold and brittle". Harmful.

RELATED NEWS

Common classification of steel

2023-03-08

There are many ways to classify commonly used steel forgings, usually according to its chemical composition, use, smelting method and metallographic structure. No matter what kind of classification method is adopted, we must adhere to the principle of "scientific and practical" and choose a reasonable classification method from the actual needs.

Properties of Alloy Steel

2023-02-17

With the development of science and technology and industry, higher requirements are put forward for materials, such as higher strength, resistance to high temperature, high pressure, low temperature, corrosion resistance, wear resistance and other special physical and chemical properties. Carbon steel can no longer be completely fulfil requirements. Disadvantages of carbon steel:

Steel coil, also known as coil steel. The steel is rolled by hot pressing and cold pressing.

2023-02-17

Steel coil, also known as coil steel. The steel is rolled by hot pressing and cold pressing. In order to facilitate storage and transportation, convenient for various processing (such as processing into steel plate, steel belt, etc.)