Q345B wide and thick steel plate material and performance and thick plate fixed rolling

Q345B wide and thick steel plate material and performance and thick plate fixed rolling

1. Introduction to Q345B steel plate:
1. Introduction to
Q345B steel plate Q345B is a low-alloy high-strength structural steel. Q345B is not only high-strength steel, it is also low-carbon steel. Q345B has high yield strength, high fatigue resistance; High toughness and low brittle transition temperature; ** Cold forming properties and welding properties; It has good corrosion resistance and certain wear resistance
2, Q345B steel plate implementation standard: GB/T1591-2008.
3. Q345B steel plate delivery state: steel plate is delivered
in the state of hot rolling, controlled rolling, normalizing, normalizing rolling, normalizing plus tempering, thermomechanical rolling (TMCP) or thermomechanical rolling plus tempering 4, Q345B steel plate thickness direction performance When the steel plate is required to have thickness direction performance, the symbols Z15, Z25 and Z35 representing the thickness direction performance level are respectively added after the grades specified above.
5. Q345B steel plate thickness range: Wugang low-alloy steel plate can produce a thickness range of 8~700mm, and the material performance is guaranteed to 400mm; The steel plate can be cut with zero cutting, and special-shaped parts can be cut.
 

Chemical composition

Tabulation: Depu Steel Date: 2024-01-18

C	Si	Mn	P	S	Nb	V
≤≤0.20	≤0.50	≤1.70	≤0.035	≤0.035	≤0.07	≤0.15

Note:
(1): In order to improve the properties of steel, other trace alloying elements other than the above table can be added, and the data comes from the network and is for reference only.
(2): The allowable deviation of the chemical composition of the finished steel plate shall comply with the provisions of GB/T222 9, Q345B steel plate size, shape, weight and allowable deviation Q345B steel plate size, shape, weight and allowable deviation shall comply with the provisions of the corresponding standard of

GB/T 709.
10. Q345B steel plate smelting method: steel is smelted by converter or electric furnace, and can be refined outside the furnace if necessary.
11. Q345B steel plate application range Q345B is suitable for power towers, all kinds of lifting cranes, heavy trucks, oil derricks, high-temperature fans, large electric shovels, dump trucks and drilling rigs, coal mine hydraulic supports, steel structures, etc.