Q345 Q355 H Beam

Q345 Q355 H Beam

Q345 is a type of steel. Is a kind of low alloy steel, widely used in Bridges, vehicles, ships, buildings, pressure vessels, special equipment, etc., where "Q" means yield strength, 345 indicates that the yield strength of this steel is 345MPa. Q355 is a type of steel. It is a kind of low-alloy high-strength structural steel, widely used in Bridges, vehicles, ships, buildings, pressure vessels, special equipment, etc., where "Q" means yield strength, 355 means that the yield strength of this steel is 355MPa, and will reduce its yield value as the thickness of the material increases.
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Description
Technical Parameters

 

Products Description

 

 

The yield strength of Q345 is where the material begins to deform plastically. Before hitting deformation, it will return to its original shape when stress is removed. For Q345, the yield strength is 345 MPa.

Like many in its grade, it will endure elongation before pulling apart, which typically occurs at 20 percent of its initial length. Q345 has a tensile strength rating of 470 to 660 MPa, which means that it can handle heavy-duty stress and use before ever failing.

The welding property of Q345 may be questioned by end-users, even though the welding properties are primarily affected by the chemical content. However, the production technology has rapidly and significantly improved after many years of research, which means that it is an excellent steel standard for structural purposes.

 

 

Q355 steel is a structural steel with a yield strength of 345 MPa and tensile strength of 450 MPa. It has terrific processing performance and compressive strength, which can be used to manufacture high-pressure gas pressure vessels containing less than 500 liters. Q355 also has a protective layer of rust resistance.

In addition to performance, Q355 has particular elements that prevent atmospheric corrosion. Since it is mild steel, it has a lower carbon content. If more carbon were added to the alloy, it would be reclassified as a cast iron.

 

 

 

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Product Details

 

Product Name Q345 Q355 h beam
Length As your required
Standard ASTM/ GB/ JIS/ EN ect.
Delivery Time According to your quantity
Payment Terms FOB/ CIF/ EXW/ DDP
Origin China
Sample Yes
Tolerance ±0.3
Packing Packed with steel belts tightly, in bundle

 

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