1. Basic material properties
Definition of SS series steel:
SS (Steel Structure) is a rolled steel for structure in Japanese Industrial Standard (JIS G 3101), and the number represents the minimum tensile strength (unit: MPa).
SS400: Tensile strength ≥400MPa, low carbon steel, excellent weldability and formability.
SS490: Tensile strength ≥490MPa, medium strength steel, balanced strength and plasticity.
SS540: Tensile strength ≥540MPa, high strength steel, suitable for load-bearing structures.
Galvanizing process:
A zinc layer is formed on the surface of the steel pipe through hot-dip galvanizing to provide anti-corrosion protection and extend the service life (up to 20-50 years in outdoor environment).
2. Additional advantages of the galvanized layer
Corrosion resistance: The zinc layer isolates air and moisture, prevents the substrate from rusting, and is especially suitable for humid and salt spray environments (such as coastal areas).
Self-repairing ability: The sacrificial anode characteristics of zinc can provide electrochemical protection against local scratches.
Surface beauty: The galvanized layer is silver-gray and can be enhanced or dyed by passivation.
3. Application scenario recommendations
SS400 galvanized pipe: low-cost, light-load scenarios (such as greenhouse frames, wire casings).
SS490 galvanized pipe: medium dynamic load structures (such as storage shelves, conveyor brackets).
SS540 galvanized pipe: high-stress environment (such as high-voltage transmission towers, large bridge reinforcement).
4. Precautions
Processing restrictions: High-strength steel (such as SS540) requires a larger radius for cold bending to avoid cracks.
Post-welding treatment: High-temperature volatilization of the galvanized layer may produce pores. It is recommended to apply zinc paint after welding.
Standard compliance: It is necessary to confirm whether it meets the target market standards such as JIS, ASTM or GB/T 3091.
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.
