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[Wholesale High quality Section ShapeTreatment GB Standard Q345A Q345B Shaped seamless steel tube

Standard :ASTM JIS GB

Model :Q345AC≤0.20Mn ≤1.70Si≤0.50P≤0.035S≤0.035

Q345BC≤0.20Mn ≤1.70Si≤0.50P≤0.035S≤0.035

Q345CC≤0.20Mn ≤1.70Si≤0.50P≤0.030S≤0.030Al≥0.015

Q345DC≤0.18Mn ≤1.70Si≤0.50P≤0.030S≤0.025Al≥0.015

Q345EC≤0.18Mn ≤1.70Si≤0.50P≤0.025S≤0.020Al≥0.015


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Hot-dip galvanized square tube is made of steel plate or steel belt after crimping forming welded square tube in hot dip galvanized pool through a series of chemical reaction forming square tube;Can also be hot rolled or cold rolled galvanized steel strip after cold bending, and then high-frequency welding of a hollow square section steel pipe.The production process of the pipe is simple, high production efficiency, variety of specifications, less equipment, but the general strength is lower than seamless square pipe.

Hot-dip galvanized square pipe has good strength, toughness, plasticity and welding process performance and has good ductility, its alloy layer and steel base firmly attached, so hot-dip galvanized square pipe can be cold punching, rolling, drawing, bending and other molding without damage to the coating;Suitable for general processing such as drilling, cutting, welding, cold bending and other processes.The surface of hot dip galvanized parts is bright and beautiful, and can be directly used for engineering according to demand.

We regularly execute our spirit of ''Innovation bringing development, Highly-quality making certain subsistence, Management advertising and marketing profit, Credit score attracting buyers for Factory For China Hot DIP Galvanized Round Steel Pipe, Gi Pipe Pre Galvanized Steel Pipe, Galvanized Tube for Construction, We've got substantial goods offer and also the price is our advantage. Welcome to inquire about our items.

Satisfaction and good credit to every customer is our priority. We focus on every detail of order processing for customers till they have received safe and sound items with good logistics service and economical cost. Depending on this, our products and solutions are sold very well in the countries in Africa, the Mid-East and Southeast Asia. Customer first, forge ahead', we sincerely welcome clients from at home and abroad to cooperate with us.

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