Overview of the dimensions of HE300B European standard H-beam 300*300*11*19.
HE300B European standard H-beam is a common construction steel, and its size is 300mm 300mm 11mm 19mm. This steel is widely used in construction, bridges, ships, automobiles and other fields because of its high strength, good stability, easy processing and other advantages. This article will give a detailed overview of the dimensions of HE300B European standard H-beam to help readers better understand the basic characteristics and use requirements of this steel.
1. Size and specifications.
The dimensions and specifications of HE300B European standard H-beam are as follows:
Model: HE300B
Dimensions: height h=300mm, width b=300mm, web thickness t1=11mm, flange thickness t2=19mm
This steel has high dimensional accuracy, the flange two parallelism is 2mm, the end face flatness is high, and the shear flatness is 05mm。When purchasing and using HE300B European standard H-beam, it is necessary to pay attention to its dimensional accuracy to ensure the effect of installation and use.
2. Mechanical properties.
The mechanical properties of HE300B European standard H-beam are as follows:
Tensile strength: 450MPa, yield point: 325MPa, elongation: 18%, bending angle: 90°, hardness: HB187
This steel has good mechanical properties and is able to maintain stability and safety under conditions of high pressure and bending forces. Its hardness is moderate, easy to process and form, and can meet the needs of different engineering fields.
3. Chemical composition.
The chemical composition of HE300B European standard H-beam is as follows:
Carbon(c): 025%, silicon (Si): 075%, manganese (MN): 20%, phosphorus (p): 004%, sulfur (s): 004%, chromium (CR): 15%, nickel (Ni): 15%, copper (cu): 15%
The chemical composition of this steel meets European standards and has good corrosion resistance and oxidation resistance. It is not easy to rust at room temperature, and maintains the luster and strength of the steel for a long time. At the same time, its chemical composition also guarantees the weldability and machinability of the steel.