High quality hot rolled Q235B carbon steel coil

Carbon Steel Coil

It consists of Q+ number + quality grade symbol + deoxidation method symbol. Its steel number is preceded by "Q", which represents the yield point of the steel, followed by a number indicating the yield point in MPa. For example, Q235 represents a carbon structural steel with yield point (σs) of 235 MPa. ② If necessary, the steel number can be marked after the quality grade and deoxidation method symbol. The quality grade symbols are A, B, C and D respectively. Symbol of deoxidation method :F stands for boiling steel; b stands for semi-killed steel; Z stands for dead steel; TZ stands for special sedative steel. Sedative steel may not be marked, that is, Z and TZ may not be marked. For example, Q235-AF indicates grade A boiling steel.

Hot rolled carbon steel roll than carbon steel a little elongation strength, good toughness and casting, stamping and welding, widely used in the manufacture of general machinery parts mainly used in buildings, Bridges, engineering quality requirements higher welding structure and bridge structure construction, ship construction industry, chemical industry, power plant the outer wall of pressure vessel, etc.
Variety of carbon steel processing, flat plate, pattern plate, plain carbon steel + stainless steel composite plate. Production is stable. Product dimensional tolerance, surface quality, mechanical properties and roll appearance control is good; The common quality defects such as broken edges, peeling, oxidized skin, scratches and pits can be effectively controlled.

(1) According to the use of carbon steel can be divided into carbon structural steel, carbon tool steel and easy cutting structural steel three types, carbon structural steel is divided into engineering construction steel and machine manufacturing structural steel two;
(2) According to the smelting method can be divided into open hearth steel, converter steel;
(3) According to the deoxidation method can be divided into boiling steel (F), sedated steel (Z), semi-sedated steel (b) and special sedated steel (TZ);
(4) according to carbon content can be divided into low carbon steel (WC 0.25% or less) to carbon steel, medium carbon steel (WC0.25%0.6%) and high carbon steel (WC > 0.6%);
(5) According to the quality of steel, carbon steel can be divided into ordinary carbon steel (phosphorus, sulfur is higher), high quality carbon steel (phosphorus, sulfur is lower) and high quality steel (phosphorus, sulfur is lower) and super high quality steel.

Shandong Longhao steel group Co., Ltd. is located in Jinan, capital of Shandong province, China. Is a set of stainless steel, carbon steel, galvanized and other alloy steel design, manufacturing, processing, wholesale, retail in one of the professional company.

Has the most powerful laser cutting machine in China. Processing projects include hollow steel carving, special-shaped graphics laser cutting, scuttling, bending, punching, welding, rust prevention, steel fast red rust solidification processing, surface treatment, etc. Customized services can be provided according to customer requirement.