What brand of steel is used in automobile production and where is it used?

After consulting the information, the most commonly used cars are as follows:

1. 1 cold rolled ordinary steel sheet

Cold-rolled steel plate is the abbreviation of common carbon structural steel cold-rolled sheet, commonly known as cold plate. It is a steel plate with a thickness of less than 4mm made of common carbon structural steel hot-rolled steel strip through further cold rolling. Because the normal temperature rolling does not produce scale, the surface quality of the cold plate is good and the dimensional accuracy is high. In addition, its mechanical properties and technological properties are better than hot-rolled steel plates, and it has been gradually used to replace hot-rolled steel plates in many fields, especially in the field of household appliances manufacturing.

Applicable brands: Q 195, Q2 15, Q235 and Q275.

Symbol: Q-yield point (limit) code of ordinary carbon structural steel, which is the first letter of "Qu" pinyin; 195, 2 15, 235, 255, 275-respectively indicate their yield points (limits), and the unit is MPa (n/mm2); The comprehensive mechanical properties of Q235 steel, such as strength, plasticity, toughness and weldability, are the best among ordinary carbon structural steels, which can meet the general requirements, so it is widely used.

Marking: dimensional accuracy-dimension-steel plate variety standard

Cold-rolled steel plate: steel grade-technical condition standard

Example of marking: B-0.5×750× 1500-GB708-88.

Cold-rolled steel plate: Q225-GB9 12-89

Origin: Angang, WISCO, Baosteel, etc.

1.2 cold rolled high quality steel plate

Like cold-rolled ordinary steel plates, cold-rolled high-quality carbon structural steel plates are also the most widely used steel plates in cold plates. Cold-rolled high-quality carbon steel plate is made of high-quality carbon structural steel with thickness less than 4mm by cold rolling.

Applicable brands: 08,08f, 10, 10F.

Symbol: 08, 10—— The two digits at the beginning of the steel number indicate the carbon content of the steel, which is expressed by the average carbon content × 100; F- non-deoxidized boiling steel; B- semi-killed steel, Z- general deoxidized killed steel (sometimes without letters).

For example, 08F stands for non-deoxidized boiling steel with an average carbon content of 0.08%; 08F steel plate is mostly used to manufacture sheet metal products with drawing structure because of its good plasticity and stamping performance.

Stretching levels: Z- deepest stretching level, S- deep stretching level and P- normal stretching level.

Surface quality: I- advanced finish surface, II- advanced finish surface and III- ordinary finish surface.

Marking: dimensional accuracy-dimension-steel plate variety standard

Cold-rolled plate: steel grade-surface quality group-drawing group-technical condition standard

Origin: Angang, WISCO, Taigang, Fushun Steel Works, Dalian Steel Works, Shenyang Steel Works, Chongqing Steel Works, Baosteel, etc.

1.3 cold-rolled steel sheet for deep drawing

Deep-drawing cold-rolled steel plates are mostly aluminum-deoxidized killed steel, which belongs to high-quality carbon structural steel. Because of its excellent plasticity and excellent drawing characteristics, it is widely used in deep drawing products with complex structure.

Applicable brand: 08A 1

Symbol: 08- The first two digits of the steel number indicate the carbon content of the steel, which is expressed by the average carbon content × 100; A 1- aluminum deoxidized killed steel.

Surface quality: I- special high-grade finish surface, II- high-grade finish surface, III- higher-grade finish surface;

Drawing performance level: ZF- can draw the most complicated parts, HF- can draw very complicated parts, and F-can draw complicated parts.

Marking: dimensional accuracy-dimension-steel plate variety standard

Cold-rolled plate: steel grade-surface quality group-drawing group-technical condition standard

Example of marking: a-1.0× 750×1500-gb708-88.

Cold-rolled plate: 08ai-II-HF-GB 5213-85

Origin: byyouxia008 from Angang, WISCO, Baosteel, Taigang and Chongqing Iron and Steel Co., Ltd..

1.4 Japan cold-rolled carbon steel plate

Applicable brands: SPCC, SPCD, SPCE

Heat treatment status: A annealing, S annealing+flattening, 8-( 1/8) hard, 4-( 1/4) hard, 2-( 1/2) hard, 1- hard.

Drawing performance grade: ZF- for stamping the most complicated parts, HF- for stamping the complicated parts, and F- for stamping the complicated parts.

Surface processing status: D- pockmarked surface (roller is shot peened after being processed by grinder) and B- smooth surface (roller is finished by grinder).

Surface quality: FC- advanced finish surface, FB- advanced finish surface. State, surface machining state, surface quality code, drawing level (SPCE only), product specification and size, shape accuracy (thickness and/or width, length, roughness).

Examples of marking: steel plate, standard number Q/BQB402, brand SPCC, annealing+flattening (S) in heat treatment state, pitted surface D, trimmed (trimmed EC, uncut EM) steel plate, surface quality FB, thickness 0.5mm, accuracy B, width 1000mm, accuracy PF. The slope and length are 2000 mm.

Origin: Baosteel, Taiwan Province Province, Japanese, Korean Pohang, etc.

byyouxia008

1.5 Germany cold-rolled carbon steel plate

Applicable brands: st 12, st 13, st 14, st 15, st14-t.

Symbols: ST steel, 12- ordinary cold-rolled steel sheet, 13- stamping cold-rolled steel sheet, 14- deep-drawing cold-rolled steel sheet, 15- ultra-deep-drawing cold-rolled steel sheet, 14-T- super cold-rolled steel sheet.

Surface quality: FC- advanced finish surface, FB- advanced finish surface.

Surface structure: B-exceptionally smooth, G-smooth, M-dull, R-rough.

Marking: product name (steel plate or steel strip), product standard number, surface quality code, drawing grade (only applicable to St 14, St 14-T and St 15), surface structure, edge state (trimming EC, trimming EM), product specification and size, and shape accuracy.

Marking examples: steel plate, standard number Q/BQB403, brand number St 14, particularly smooth surface structure (B), FC surface quality, trimming (EC), thickness 0.8mm, A-level accuracy, width 1200mm, A-level accuracy, length 2000mm and roughness PF.

Steel plate EC: 0.8a×1200a× 2000a-pf.b.

Origin: Baosteel, Germany, etc. byyouxia008