Qingdao Yingchun Machinery Co., ltd.

Qingdao Yingchun Machinery co,ltd

National free consultation hotline

0532-87526167

Introduction to the basic knowledge of plank
1. Classification of steel plates (including strip steel) :
1. Classification by thickness: (1) thin plate (2) medium plate (3) thick plate (4) heavy plate
2. Classification according to production methods: (1) hot rolled steel plate (2) cold rolled steel plate
3. Classification by surface characteristics: (1) galvanized sheet (hot galvanized sheet, electroplated zinc plate) (2) tin plate (3) composite steel plate (4) color coated steel plate
4, according to use classification: (1) the bridge plate (2) boiler plate (3) the shipbuilding steel plate armor plate (4) (5) the car plate (6) roof structure of steel plate (7) (8) electrical sheet steel, silicon steel sheet) (9) spring plate (10) the other
2. Common and mechanical structure used in steel plate of Japan
1. The general structural Steel of Japanese Steel (JIS series) is mainly composed of three parts: the first part represents the material, such as: S (Steel) represents Steel, and F (Ferrum) indicates iron; The second part represents different shapes, types and USES, such as a P(Plate) representation board, and a T (Tube) represents the Tube, and K(Kogu) means the tool; The third part represents the characteristic number, generally the lowest tensile strength. For example, SS400 -- the first S represents Steel (Steel), the second S means "Structure", 400 is the lower limit tensile strength 400MPa, and the whole represents the general Structure Steel of the tensile strength of 400MPa.
2. SPHC -- the first S is the abbreviation of Steel Steel, P is the abbreviation of Plate Plate, H is the abbreviation of hot Heat, C is the abbreviation of Commercial Commercial, and the whole means the general use of hot rolled Steel and Steel belt.
3. SPHD - indicating stamping steel plate and steel strip.
4. SPHE - represents deep flush with hot rolled steel and steel strip.
5. SPCC - represents the general use of cold rolled carbon steel sheet and steel strip, equivalent to the Chinese q195-215a brand. The third letter C stands for Cold Cold. To ensure the tensile test, add T to SPCCT at the end of the card.
6. SPCD - indicates that the stamping cold rolled carbon steel sheet and steel strip is equivalent to China 08AL (GB/T13237-1991) high quality carbon structural steel.
7. SPCE -- a thin plate and steel strip with cold rolled carbon steel, equivalent to China SC1 (gb5213-2001) deep steel. To ensure the non-timeliness, add N to SPCEN at the end of the card. Cold rolled carbon steel sheet and steel band quality code: the annealing state is A, the standard adjustment is S, 1/8 is hard to be 8, 1/4 hard to 4 1/2 hard to 2, hard to 1. Surface processing codename: no gloss finish rolling for D, bright finish rolling for B.
For example, spcc-sd indicates that the standard cold rolled carbon sheet is generally used for the standard quality and non-gloss finish. If the spcct-sb indicates the standard quality and bright processing, it is required to guarantee the cold-rolled carbon thin plate of mechanical properties.
8, JIS method is: the mechanical structure with steel grades said S + carbon + letter (C, CK), the carbon content in the middle value by 100, said the letter "C" : said carbon K: case hardening steel. For example, the carbon content of carbon coiled plate S20C is 0.18-0.23%.
Iii. Chinese and Japanese silicon steel plate number representation method
1. Chinese brand name means:
(1) cold rolled unoriented silicon steel strip (sheet)
Method: DW+ iron loss value (at frequency of 50HZ, the wave form is the value of a unit weight iron loss of 1.5t for the magnetic sense of the sine wave.) 100 times the thickness of 100. For example, dw470-50 indicates that the iron loss value is 4.7w/kg and the thickness is 0.5mm, and the new model is 50W470.
(2) cold-rolled oriented silicon steel belt (sheet)
Method: DQ+ iron loss value (at the frequency of 50HZ, the wave form is 1.7t unit weight iron loss.) 100 times the thickness of 100. Sometimes the iron loss is added to the G to indicate a high magnetic feeling. For example, dq133-30 indicates that the iron loss value is 1.33, the cold-rolled orientation silicon strip (slice) with a thickness of 0.3mm, and now the new model is 30Q133.
(3) hot rolled silicon steel plate
According to DR, the silicon content of the hot rolled silicon steel plate is divided into low silicon steel (with a silicon content of less than or equal to 2.8%) and high silicon steel (>2.8% of silica content). Method: 100 times + thickness of the value of the DR+ iron loss (which is repeatedly magnetized by 50HZ and the maximum value of the magnetic induction intensity of 1.5t with the maximum value of the magnetic induction intensity is 1.5t). If dr510-50 indicates an iron loss value of 5.1, the thickness is 0.5mm hot rolled silicon steel plate. The brand of hot rolled silicon steel for household appliances is represented by JDR+ iron loss value + thickness value, such as jdr540-50.
2. Japanese brand representation method:
(1) cold rolling without oriented silicon steel belt by the nominal thickness (100 times the value of the expand) code + A + iron loss guarantee value (will frequency 50 hz, the maximum magnetic flux density of 1.5 T when the iron loss value expand after 100 times). For example, 50A470 indicates that the thickness is 0.5mm, and the iron loss guarantee is less than or equal to 4.7 cold rolled non-oriented silicon steel strip.
(2) the orientation of cold rolled silicon steel belt by the nominal thickness (100 times the value of the expand) + code G: said ordinary material, P: said high orientation material + iron loss guarantee value (will frequency 50 hz, the maximum magnetic flux density of 1.7 T when the iron loss value expand after 100 times). If 30G130 indicates the thickness of 0.3mm, the steel loss guarantee value is less than or equal to 1.3.
4. Electroplated tin plate and hot galvanized sheet:
1. Electroplate tin plate
Tin plating steel sheet and strip, also known as tin, tin plating on the surface of the steel plate (with), has good corrosion resistance, non-toxic, can be used for packing material of canned, cable inside and outside to protect skin, telecom parts, flashlights and other hardware.
2. Hot galvanized sheet
Hot plate and zinc plate is divided into hot rolled zinc plate and cold rolling hot plate. The hot plate is mainly used in construction, home appliance, automobile, container and furniture. Hot rolled zinc plate is mainly used in steel structure construction, automobile manufacturing, steel plate warehouse manufacturing and other industries. The main features of the market are corrosion resistance, good surface quality, and deep processing.
5. Color coated steel plate
The color coated steel sheet and steel strip are the base of metal strip, and the surface is coated with various kinds of organic coating products, used for construction, household appliances, steel furniture, transportation and other fields.

Return to the top