GB/T1591 Q345B Carbon Structural Steel Plate

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. This particular grade of steel is a 'general purpose' manufacturing steel, used for sheet metal, light structural elements of household goods, and similar uses where it won't be used as a major structural component.
The specification of Q345B we can offer:
Thickness:2mm-500mm
Width:1000mm-4200mm
Length:3000mm-18000mm
Rolling Type:
High strength low alloy structural steels.
Heat Treatment:
As rolled/Control-rolled/Normalized
Delivery status:
annealing, specific delivery status should be specified in the warranty book.
Q345B Steel Chemical Composition:
C < 0.20
Si < 0.50
Mn 1.0-1.6
P < 0.040
S < 0.040
Q345B Steel Mechanical Composition:
Yield Strength: >345 MPa
Tensile Strength: 470-630 MPa
Elongation: > 21 %
The equivalent steel grade with Q345B:
EN 10025-2    S355JR
ASTM A572    A572Grade 50
DIN 17100     St52-3.
 Q345B Formability and Weldability:
The major benefit of this grade of steel is its mild temper. It's 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. Chances are, if you've got an object with a steel exterior that was made in China, this is the grade of steel used for the outside of it. It is the combination of comparatively low price and ease of use that makes this steel nearly ubiquitous in consumer goods where low weight isn't a major concern.
BEBON, the most professional Q345B steel exporter, Bebon will offer you the the best Q345B steel. If you have any order in Q345B steel from BEBON, please inquiry us soon.