Foshan Shunde Langyao Steel Co., Ltd. was established on May 11, 2015. The legal representative is Huang Songming, and the company is engaged in the sale of steel products and domestic business operations.
Spiral steel pipes, due to their high strength and corrosion resistance, have been widely used in many fields.
Water Treatment: Spiral steel pipes find extensive use in potable water, drainage systems, and other water supply and drainage applications, and can be used in atmospheric, soil, or water environments. Oil and Gas: Due to their strength, durability, and reliability, spiral steel pipes are widely used in oil and gas transmission pipelines, suitable for high pressure, high temperature, and harsh conditions. Construction and Structures: Spiral steel pipes can be utilized in constructing factories, bridges, and other structures. Their durability and reliability make them widely applicable, as they can be assembled to form long-span bridges or support heavy buildings. Transportation: Spiral steel pipes can be used to manufacture vehicle, train, and aircraft components. Their lightweight and strength allow for energy savings while enhancing transportation efficiency and safety. Additionally, spiral steel pipes are extensively used in oil and gas transportation, urban construction, industrial production, and other fields. In summary, due to their excellent performance and reliability, spiral steel pipes are widely applicable in many industries.
In the common material of spiral steel pipes, the strength of Q345B is mainly reflected in the following aspects:
Tensile Strength: The tensile strength of Q345B is 370~500 N/mm², whereas Q235B's tensile strength is only 230~340 N/mm². This indicates that Q345B has a higher tensile strength than Q235B.
Yielding Strength: The yielding strength of Q345B is ≥320 MPa, while that of Q235B is ≥195 MPa. This means the yielding strength of Q345B is higher than that of Q235B.
Tensile elongation: The elongation rate of Q345B is ≥19%, while that of Q235B is ≥21%. Although the difference is not significant, it still indicates that Q345B has better plastic deformation capability.
In summary, among the common materials for spiral steel pipes, Q345B has the strength.
