Q345 Alloy Steel Round Bar
Q345 round steel rod is a kind of steel material. It is a low alloy steel (C<0.2%), widely used in construction, bridges, vehicles, ships, pressure vessels, etc. Q stands for the yield strength of the material, followed by 345, which means the yield value of the material, in the range of 345 MPa. And with the increase of the thickness of the material will make its yield value decreases.
Q345 solid steel round bar comprehensive mechanical properties are good, low-temperature performance is still available, plasticity and weldability is good, used as low and medium pressure containers, tanks, vehicles, cranes, mining machinery, power stations, bridges and other structures subject to dynamic loads, mechanical parts, building structures, general metal structural parts, hot rolled or normalised state use, can be used for a variety of structures in the cold regions below -40 ℃.
q345 solid round bar steel chemical composition
| Steel Standard | Steel Grade | Chemical Composition | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| C≤ | Mn | Si≤ | P≤ | S≤ | V | Nb | Ti | Al≥ | ||
| Q345 | A | 0.20 | 1.00~1.60 | 0.55 | 0.045 | 0.045 | 0.02~0.15 | 0.015~0.060 | 0.20 | - |
| B | 0.20 | 1.00~1.60 | 0.55 | 0.040 | 0.040 | 0.02~0.15 | 0.015~0.060 | 0.20 | - | |
| C | 0.20 | 1.00~1.60 | 0.55 | 0.035 | 0.035 | 0.02~0.15 | 0.015~0.060 | 0.20 | 0.015 | |
| D | 0.20 | 1.00~1.60 | 0.55 | 0.030 | 0.030 | 0.02~0.15 | 0.015~0.060 | 0.20 | 0.015 | |
| E | 0.20 | 1.00~1.60 | 0.55 | 0.025 | 0.025 | 0.02~0.15 | 0.015~0.060 | 0.20 |
0.015 |
|
q345 round stock steel mechanical property
| Steel Standard | Steel Grade | Yield Strength Mpa | Tensile Stregth Map | Elongation % |
|---|---|---|---|---|
| Q345 | A | 345 | 470~630 | 21 |
| B | 345 | 470~630 | 21 | |
| C | 345 | 470~630 | 22 | |
| D | 345 | 470~630 | 22 | |
| E | 345 | 470~630 | 22 |
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