Material Name: Carbon structural steel Q235B - Encyclopedic

Material Name: Carbon structural steel Q235B
Materials are: steel
The major manufacturers: Other
Physical Properties: No relevant information
Availability hardness: no information
Typical Applications: mainly used in construction, bridge projects requiring high quality welded structure.

Related Description: Q235B carbon structural steel required for the impact test at room temperature, V-notch. A certain elongation, strength, good toughness and castability, easy-to-stamping and welding, often rolled into wire rod or bar, square steel, flat steel, angle steel, engineering

Steel, channel steel, steel, steel window frames, in the thick steel plate. With the use of a large number of architectural and engineering structures. Or build a plant for the production of steel house frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, also used as a large number of

Asked not to be too high, the mechanical parts.

Microstructure: ferrite + pearlite.

Q235A and Q235B difference:
      Q235A and Q235B made of steel are the property of carbon steel in the national standard GB700-88 in the material of the Q235A and Q235B distinguished mainly in terms of carbon content of steel, made of steel Q235A 0.14-0.22% carbon content between, Q235B steel carbon content between 0.12-0.20%; followed in the tensile and impact test, the material for the steel Q235A does impact test, the material is made of steel Q235B impact test at room temperature, V-notch Relatively speaking, made of steel Q235B mechanical.

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    Can be far superior to the steel material for the Q235A general, steel plate in the finished product prior to shipment steel surface of the logo in the case of profiles, such as: angle, channel, beam, H section steel and other steel users identification plates can judge the material is Q235A, or Q235B, or other material.
     A, B, C, D, E, are different, referring to the impact of their performance in different temperatures were: Q235A level, is not to shock; Q235B grade, is 20 degrees room temperature impact; Q235C level is 0 degrees shock; Q235D level is -20 degree impact; Q235E level is -40 degree impact, the impact of different temperature, shock value are different.
    In the plate, the most common material, is a general board series.
    Standard: External standard: GB709, internal standard: GB3274-88