Specification and description of caster steel plate

The plate used for caster support usually refers to thin steel plate (belt); The so-called thin steel

plate refers to the steel plate with plate thickness less than 4mm. It is divided into hot-rolled plate

and cold-rolled plate. As we all know, in the field of home appliance manufacturing, cold-rolled sheet

and galvanized sheet with cold-rolled sheet as the original sheet are widely used. The selection of

parts and materials of refrigerator, air conditioner, washing machine, microwave oven, gas water

heater and so on are closely related to it. In recent years, the influx of foreign brands of steel has

enriched the domestic steel market and gradually expanded the scope of plate selection, which

has played an obvious role in improving the manufacturing quality of household electrical

appliances and providing richer styles and appearance; However, due to the inconsistency

between foreign plate models and China's plate brands and marks, and there are few in the

market at present. In view of the above situation, this paper introduces the basic data of cold-rolled

sheet steel and galvanized sheet with cold-rolled sheet as the original plate in several countries

(Japan, Germany and Russia) that are often used and used most in China, and summarizes the

corresponding relationship with our national steel plate brand, so as to improve our recognition

and recognition of foreign plates and be able to select them skillfully.

Marking: dimensional accuracy - steel plate variety standard

Cold rolled steel plate: q225-gb912-89

1 Identification of plate brand and mark

1) Cold rolled ordinary steel sheet

Symbol: Q - Code of yield point (limit) of ordinary carbon structural steel, which is the case of the

first Chinese pinyin letter of "Qu"; 195, 215, 235, 255 and 275 are respectively the values of their

yield point (limit), unit: MPa (n / mm2); Because the comprehensive mechanical properties of Q 235

steel, such as strength, plasticity, toughness and weldability, are the best among ordinary carbon

structural steels and can better meet the general application requirements, it has a wide range of

applications.

Cold rolled steel sheet is the abbreviation of common carbon structural steel cold rolled plate,

commonly known as cold plate. It is a hot-rolled steel strip of ordinary carbon structural steel,

which is further cold rolled into a steel plate with a thickness of less than 4mm. Due to rolling at

normal temperature, there is no iron oxide scale. Therefore, the cold plate has good surface

quality and high dimensional accuracy. Combined with annealing treatment, its mechanical and

process properties are better than hot-rolled steel sheet. It has been gradually used to replace

hot-rolled steel sheet in many fields, especially in the field of household appliance manufacturing.

Applicable grades: Q195, Q215, Q235, Q275;

Cold rolled steel sheet: steel grade I technical condition standard

Example of marking: b-0.5 × seven hundred and fifty × 1500-GB708-88

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