Blog

For construction projects near the coastline, “corrosion” is not just a long-term issue—it is a swift and severe threat. Coastal atmospheres are saturated with salt spray (chlorides) and high humidity, chemical catalysts that accelerate steel corrosion by 10 to 100 times faster than in inland environments. Choosing the right material is no longer just an option; it is a matter of structural safety and long-term investment. The Harsh Reality of Salt Air on Steel Structures In coastal areas,...

In structural steel projects, Hot-Dip Galvanizing (HDG) is widely recognized as the most effective method for corrosion protection. However, a crucial fact remains: “A perfect galvanized finish begins at the fabrication shop.” Improper steel preparation not only results in poor aesthetics but can also lead to structural risks and unnecessary project delays. To ensure your steel achieves a uniform, high-quality coating that complies with ASTM A123 standards, Siam Steel Galvanizing (SSG)...

In the world of structural steel and mechanical assembly, fasteners—such as bolts, screws, clamp brackets, and washers—are the small components that carry a massive responsibility. However, contractors and site engineers frequently encounter a persistent headache: when these small parts are sent for standard Hot-Dip Galvanizing (HDG), they often return with “clogged threads.” This occurs when the molten zinc pools and hardens in the grooves, making it impossible to tighten the nuts. What...

In mega-project construction—whether power plants, expressways, or massive industrial facilities—engineers strictly specify that structural steel must be galvanized according to the ASTM A123 standard. But what exactly is this standard, and why has it become the “gold standard” for quality assurance? ASTM A123 is an international standard that dictates the quality of Hot-Dip Galvanizing (HDG) for iron and steel products that are non-fasteners. This includes structural shapes, tubing,...

In construction and the steel industry, a frequent question is: “What is the difference between Hot-Dip Galvanized (HDG) steel and Pre-Zinc steel?” While both are zinc-coated to prevent rust, the production processes and resulting performance are very different. To help you make the right, most cost-effective choice, Siam Steel Galvanizing dives deep into these clear differences. Understanding the Production Process Hot-Dip Galvanized (HDG) steel involves taking a pre-formed or fully...

In an era where global industries prioritize Sustainability and green innovation, Project Sequoia in Nakhon Sawan—a world-class Biopolymer production facility—has become one of Thailand’s most significant industrial landmarks. As a leader in corrosion protection, Siam Steel Galvanizing Co., Ltd. (SSG) was entrusted with the hot-dip galvanizing work for the entire steel structure of this prestigious project. Being selected for Project Sequoia not only reflects our high capacity but also reaffirms...