Japanese steel grade representation method

Ordinary and mechanical structure with steel plate in common Japanese brand 1, Japan Steel (JIS series) grades in general structural Steel mainly consists of three parts: the first part of the said materials, such as: S (Steel) said Steel, F (Ferrum) says iron; The second part shows different shape, type, USES, such as P (Plate) said board, T (Tube) said Tube, K (Kogu) said tool; The third part said characteristic Numbers, general for minimum tensile strength. Such as: SS400 - the first S said Steel (Steel), the second S said "Structure" (Structure), 400 for lower limit tensile strength of 400 MPa, the overall said tensile strength for 400 MPa of ordinary Steel. 2, SPHC - the first S for Steel Steel initials, P is the abbreviation of Plate Plate, H is the abbreviation of hot Heat, C is the abbreviation of Commercial business, the overall said general use hot rolled Plate and Steel belt. 3, SPHD - said stamping with hot rolled plate and steel belt. 4, SPHE - said deep drawing with hot rolled plate and steel belt. 5, SPCC - said general use cold rolled carbon steel sheet and strip, equivalent to China Q195-215 a brand. The third letter c is the abbreviation of cold cold. Should guarantee the tensile test, in the end of add t for SPCCT. 6, SPCD - said stamping with cold rolled carbon steel sheet and strip, equivalent to China al (13237) for high quality carbon structural steel. 7, SPCE - said deep drawing with cold rolled carbon steel sheet and strip, which is equivalent to euro China al (5213) deep drawing steel. To ensure the timeliness, in the end of spcen with n. Cold rolled carbon steel sheet and strip quenched and tempered code: annealing state for a, standard quenched and tempered for s, 1/8 hard for 8, 1/4 hard for 4, 1/2 hard for 2, hard to 1. Surface processing code: matt finish rolling for d, bright finishing for b. Such as SPCC - sd said standard quenched and tempered, matt finishing of general use cold rolled carbon sheet. Be like again SPCCT - sb say standard quenched and tempered, light processing, demand guarantee and mechanical properties of cold rolled carbon sheet. 8, JIS mechanical structure steel brand representation method for: S + carbon content + letter code (C, CK), the carbon content in intermediate value x 100 said, the letter C: said carbon K: said carburizing steel. Such as carbon and coil s20c its carbon content is 0.18-0.23%. China and Japan silicon steel sheet brand representation method 1, China brand representation: (1) cold rolled no oriented silicon steel strip (film) Said method: DW + iron loss value (in frequency for fifty hz, waveform for sinusoidal magnetic sense peak 1.5 T unit weight iron loss value. 100 times + thickness value 100 times. If DW470 - fifty says iron loss value is 4.7 w/kg, thickness of 0.5 mm cold rolled silicon steel, no orientation is new model for fifty w470 said. (2) cold rolled oriented silicon steel strip (film) Said method: DQ + iron loss value (in frequency for fifty hz, waveform for sinusoidal magnetic sense peak 1.7 T unit weight iron loss value. 100 times + thickness value 100 times. Sometimes iron loss value added g said high magnetic induction. If dq133-30 said iron loss value is 1.33, the thickness of 0.3 mm cold rolled oriented silicon steel strip (film), is a new model for 30 q133 said. (3) hot rolled steel plate Hot rolled steel plate with DR said, according to the silicon content of many into low silicon steel (content of silicon or less 2.8%), high silicon steel (including silicon quantity > 2.8%). Said method: Dr + iron loss value (fifty hz repeated magnetization and according to the sine shape change of magnetic induction intensity for maximum 1.5 t of unit weight iron loss value) of the 100 times + thickness value 100 times. If dr510 - fifty says iron loss value is 5.1, the thickness of 0.5 mm of hot rolled silicon steel plate. Household appliances use of hot rolled silicon steel sheet with JDR + iron loss value + thickness values to say, such as jdr540 - fifty. 2, Japan brand representation: (1) cold rolled no oriented silicon steel strip The nominal thickness (enlargement 100 times value) + code A + iron loss guarantee value (to be fifty hz frequency, the biggest magnetic pass density of 1.5 T of iron loss value expand the value after the 100 times). If fifty a 470 indicates thickness of 0.5 mm, iron loss guarantee value of 4.7 or less for cold rolling without oriented silicon steel strip. (2) cold rolled oriented silicon steel strip The nominal thickness (enlargement 100 times value) + code G: said ordinary material, P: said high orientation sexual material + iron loss guarantee value (to be fifty hz frequency, the biggest magnetic pass density of 1.7 T of iron loss value expand the value after the 100 times). Such as 30 g 130 indicates thickness of 0.3 mm, iron loss guarantee value of 1.3 or less for cold rolled oriented silicon steel strip. 3, the common and mechanical structure with steel plate in common Japanese brand (1) the Japanese steel (JIS series) grades in general structural steel mainly consists of three parts: The first part of the said materials, such as: s (steel) said steel, f (ferrum) says iron; The second part shows different shape, type, USES, such as P (Plate) said board, T (Tube) said Tube, K (Kogu) said tool; The third part said characteristic Numbers, general for minimum tensile strength. Such as: SS400 - the first S said Steel (Steel), the second S said "Structure" (Structure), 400 for lower limit tensile strength of 400 MPa, the overall said tensile strength for 400 MPa of ordinary Steel. (2) - the first SPHC Steel Steel S initials, P is the abbreviation of Plate Plate, H is the abbreviation of hot Heat, C is the abbreviation of Commercial business, the overall said general use hot rolled Plate and Steel belt. (3) SPHD - said stamping with hot rolled plate and steel belt. (4) SPHE - said deep drawing with hot rolled plate and steel belt. (