Address:Zhengzhou city in China.
Phone:0086-371-86151827
Email:
Q345B steel is a Chinese standardized low alloy, medium tensile strength steel made with a hot-rolling process, and is used for a number of manufacturing purposes. It is a steel with less than 0.2 percent of its composition made up of carbon, less than 0.55 percent of its composition made of silicon and several impurities (mostly sulfur, chromium and nickel).
Formability and Weld ability:
GB/T1591 Q345B Steel is easy to form and easy to weld, allowing it to be used to put sheet plate on doors, steel cabinets and the exterior surfaces of most objects.
GB/T1591 Q345B Steel Mechanical Property:
| Grade | Mechanical Property | |||
| Tensile Strength(MPa) | Yield Strength(MPa) | % Elongation in 2 in.(50mm) min | Impacting Test Temperature(°C) | |
| GB/T1591 Q345B | 470-630 | 345 | 20 | 20 |
GB/T1591 Q345B Steel Chemical Composition (%):
| Grade | Chemical Composition (%) | ||||
| C | Mn≥ | Si | P | S | |
| GB/T1591 Q345B | 0.20 | 1.70 | 0.50 | 0.035 | 0.035 |
GB/T1591 Q345B Steel is widely used in bridges, vehicles, ships, buildings, pressure vessels, etc.
Q345B Steel Additional Condition:
UT (Ultrasonic examination),AR(As Hot Rolled only),TMCP(Thermal Mechanical Control Processing),N(Normalized),Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, HIC test, NDT ,PWHT( Simulated Post Weld Heat Treatment),NACE0175,The Third Party Test (Such as SGS Test), Coated or Shot Blasting and Painting.
Address: Zhengzhou city in China.
Phone: 0086-371-86151827
Email: 
