1. Material characteristics
SS400:
Minimum tensile strength is 400MPa.
The chemical composition mainly includes elements such as carbon©, silicon (Si), manganese (Mn), sulfur (S) and phosphorus (P).
It has good weldability and processing performance.
In China, it is roughly equivalent to Q235B steel plate, but the requirements for sulfur (S) and phosphorus (P) content are more relaxed.
SS490:
Minimum tensile strength is 490MPa.
It has higher strength and is suitable for structures that require higher load-bearing capacity.
SS540:
Minimum tensile strength is 540MPa.
It has higher strength and is suitable for heavier load structures and mechanical parts.
2. Galvanizing treatment
Corrosion resistance:
Galvanizing can significantly improve the corrosion resistance of steel and extend its service life.
The galvanized layer can prevent steel from contacting oxygen and moisture in the air, thereby avoiding rust.
Surface quality:
The surface of the galvanized round tube is smooth, without defects such as cracks, bubbles, and scars.
The surface quality requirements are strict to ensure safety and reliability in the structure.
3. Application areas
Construction engineering:
Used to make structural parts such as steel structures, bridges, factories, warehouses, houses, etc.
High strength and good welding performance make it an ideal material for building structures.
Machinery manufacturing:
Used to manufacture various machinery and equipment, vehicles, ships and other parts.
Good processing performance and mechanical properties meet the manufacturing needs of mechanical parts.
Bridge construction:
Used to make key components such as the main beam and cross beam of the bridge, which can withstand the load of vehicles and natural environment.
Vehicle manufacturing:
Used to manufacture automobile chassis, frames, body parts, etc.
High strength and good plasticity meet the needs of automobile manufacturing.
Shipbuilding:
Used for the production of hull structures and certain mechanical parts.
Good corrosion resistance adapts to the marine environment.
Petrochemical:
Used to manufacture pressure vessels, pipelines and other equipment.
Corrosion resistance adapts to certain chemical environments.
4. Production process
Smelting:
Iron ore is converted into molten steel through the smelting process, and an appropriate amount of alloy elements are added to adjust the mechanical properties and processing properties of the final product.
Continuous casting:
The molten steel is continuously cast into a billet of a certain shape through a continuous casting machine.
The temperature and flow state of the molten steel need to be strictly controlled to ensure the quality and shape of the billet.
Galvanizing:
The steel pipe is hot-dip galvanized to form a uniform zinc layer on the surface.
The galvanized layer can effectively prevent the steel from rusting and improve the corrosion resistance.
5. Price and procurement
Price:
The price varies depending on the specification, quantity and market conditions.
Usually, bulk purchases can get more favorable prices.
Standard packaging and transportation services are provided.
In summary, galvanized round pipes made of SS400, SS490 and SS540 have high strength, good weldability and corrosion resistance, and are widely used in construction, machinery, bridges, vehicles, ships and petrochemicals.
Our products are exported to more than 60 countries and regions including Europe, the Middle East, Southeast Asia, Australia, Latin America, South Africa, etc. We have won the recognition of customers with good reputation and good service. Since its establishment, the company has always adhered to the business philosophy of "making friends while doing business", insisting on being ourselves first and doing good deeds, taking customer satisfaction as the goal, reputation first, and being committed to providing customers with first-class products and meticulous and efficient services.
Company integrating production and trade, with 14 years of experience in high-quality steel production, providing one-stop service for global customers.
The products are widely used in the construction and infrastructure fields, such as bridges, large buildings, highways, tunnels, airports, docks, etc. Steel is an ideal choice for these structures, capable of withstanding heavy weights and strong winds.
