Baotou Q345E steel plate Q345E low alloy 1500mm1800mm2000mm

  Q345E designation
The grade of steel is composed of Chinese phonetic alphabet representing yield strength, yield strength value and quality grade symbol
For example: q345e Including: q&mdash& mdash; Yield strength of steel “ Qu " The first letter of the Chinese phonetic alphabet; 345—& mdash; Yield strength value, in MPa; E - the quality grade is grade E
When the demander requires the steel plate to have the performance in thickness direction, a symbol representing the performance level in thickness direction (z direction) shall be added after the above specified brand, such as q345dz15 Dimension, shape, weight and allowable deviation dimension, shape, weight and allowable deviation shall comply with the provisions of corresponding standards Grade and chemical composition 1
The grade and chemical composition (melting analysis) of steel shall comply with the provisions in Table 1
2
When it is necessary to add fine grain elements, the steel shall contain at least one of Al, Nb, V and Ti
The content of added refined grain elements shall be indicated in the quality specification
3、 When all aluminum is used (when the aid content is expressed, AK shall not be less than 0
020%
4
The content of various elements in the steel shall comply with the provisions of Table 1
If the supplier guarantees, the oxygen content analysis may not be carried out
If Al, Nb, V, Ti and other alloy elements with nitrogen fixing effect are added to the steel, the nitrogen content is not limited, and the nitrogen fixing element content shall be indicated in the quality specification
5
When Cr, Ni, Cu of each brand are used as residual elements, the content shall not be greater than 0
30% respectively
If the supplier guarantees, it may not be carried out Analysis; When it is necessary to add, its content shall comply with the provisions of Table 1 or the agreement between the supplier and the buyer
6
In order to improve the performance of steel, RE element can be added, and its addition amount shall be 0
5% of the weight of molten steel 02%? 0
20% calculation
7
Under the condition that the mechanical properties of the steel meet the provisions of this standard, the chemical composition of C, Si and Mn of grade a steel may not be used as delivery conditions
Low alloy coil q345e4
751800c28
295t Anyang steel low alloy coil q345e31250c24
946t Anyang steel low alloy coil q345e4
51250c21
86t Anyang steel low alloy coil q345e3
51500c23
39t Anyang steel low alloy coil q345e4
751500c29
02t Anyang steel low alloy coil q345e2
951500c18
91t Anyang steel low alloy coil q345e102000c67
721t Anyang steel low alloy coil q345e3
751500c47
21t Anyang Anyang Steel Co
, Ltd Alloy coil q345e3
51500c47
26t Anyang steel low alloy coil q345e3
751400c92
74t Anyang steel low alloy coil q345e51420c13
46t Anyang steel low alloy coil q345e3
51600c25
46t Anyang steel low alloy coil q345e2150c26
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