Blog

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...

Are you tired of rusty scissors, kitchen knives with reddish stains, or small bolts starting to corrode? Sometimes, buying chemical rust removers is expensive or worrying due to toxic residues. Today, Siam Steel Galvanizing (SSG) shares simple DIY tricks to turn everyday kitchen items into “Natural Rust Removers.” 1.Lemon + Salt: Sprinkle salt over the rusty area, then squeeze lemon juice until it’s soaked. Let it sit for 2–3 hours. The salt acts as a gentle abrasive, while the...

When selecting a Hot-Dip Galvanizing (HDG) service, savvy contractors and engineers know that price isn’t the only factor. The most critical element is the Galvanizing Standard. This is the only guarantee that your steel will resist corrosion for its intended design life. At Siam Steel Galvanizing (SSG), we strictly adhere to the ASTM A123 standard—the global benchmark for the galvanizing industry. What is the ASTM A123 Standard? ASTM A123 is the standard specification for zinc coatings on...