What material is q325?
Q325 is actually a kind of steel, and ordinary carbon structural steel-universal plate is a kind of steel.
Q represents the yield limit of this material, and the latter 235 refers to the yield value of this material, which is about 235MPa. And the yield value will decrease with the increase of material thickness. Because of its moderate carbon content, good comprehensive properties and good combination of strength, plasticity and weldability, it is widely used. It consists of Q+ number+quality grade symbol+deoxygenation method symbol. Its steel grade is preceded by "Q", which represents the yield point of steel, and the number behind it represents the yield point value in MPa. For example, Q235 represents a carbon structural steel with a yield stress (σs) of 235 MPa.
When necessary, symbols indicating quality grade and deoxidation method can be marked behind the steel number. The symbols of quality grades are A, B, C and D respectively. Deoxidation method symbol: f stands for boiling steel; B stands for semi-killed steel; Z stands for killed steel; TZ stands for special killed steel, and killed steel can be left unmarked, that is, Z and TZ can be left unmarked. For example, Q235-AF stands for Class A boiling steel.
Carbon steel for special purposes, such as bridge steel and marine steel, basically adopts the representation method of carbon structural steel, but the letter indicating the purpose is attached at the end of the steel number.
Representation of Q325 steel
The complete representation is:
Q235-symbols for quality grades and deoxidation methods
The quality grades are A, B, C, D and E, with A having poor quality and E having the highest quality. The symbols of deoxidization method are F, B, Z and TZ, which respectively represent boiling steel, semi-killed steel, killed steel and special killed steel, but in the brand representation method, the symbols of Z and TZ can be omitted.
Use of q325
1, widely used in buildings and engineering structures. Used for manufacturing steel bars or building factories, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc. It is also widely used as mechanical parts with low performance requirements. Grade C and D steels can also be used for some professional steels.
2. It can be used for all kinds of unimportant grinding tool parts such as grinding tool handles.
3. The punch is made of Q235 steel, which can be used directly without tempering after quenching, and the hardness is 36~40HRC, which solves the fracture phenomenon of the punch in use.
The above is what material q235 and q235 steel are. I hope you will like the introduction above.