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What Should You Do When Steel Rusts?
In fact, the causes of rust and the methods for treating it vary greatly depending on the type of steel (stainless steel, carbon steel, alloy steel, etc.). Choosing the right method is essential for effective rust removal and long-lasting rust prevention. ! Factors ...Read more -
Causes, Prevention, and Treatment Methods for White Rust on Galvanized Coils
When galvanized products are stored or transported in humid environments, the lack of free-flowing air on the surface makes the coating susceptible to electrochemical corrosion, resulting in white or gray powdery corrosion products—commonly known as white rust. Although ...Read more -
Why Hot-Dip Galvanized Pipes Are Widely Used in Fire Protection？
hot-dip galvanized steel pipes are a common type of fire protection piping and play an irreplaceable role in the fire safety industry. Why can’t hot-dip galvanized pipes be replaced by cheaper welded pipes or electrogalvanized pipes? The basic principle behind galvaniz...Read more -
Galvanized Coils vs Galvalume Steel Coil: How to Choose?
Z275 > AZ150. Most people assume that Z275 has a thicker coating and better corrosion resistance. However, Z275 and AZ150 belong to two different coating systems, so you can’t simply compare the two numbers. What truly determines a product’s performance is: C...Read more -
Why Do PPGI Color-Coated Steel Coils Need to Undergo Salt Spray Testing?
The salt spray test is a standard testing method that involves placing samples in a sealed chamber filled with salt spray to evaluate a material’s rust resistance through accelerated corrosion. Color coated steel sheet are used in building exteriors, roofing, home appli...Read more -
How Should You Choose Zinc Ingots?
Zinc ingots are metallic materials cast from primary metallic zinc. Trace impurity elements may remain during smelting, yet metallic zinc constitutes the principal component. Impurities including lead, cadmium, iron, copper, tin and aluminum can affect the mechanical pr...Read more -
How to Choose Color-Coated Coils?
Color coated coils are manufactured using cold rolled steel sheet or galvanized steel sheets as the base material, and are processed through a series of steps including continuous surface pretreatment, baking, and cooling. The product offers advantages such as being po...Read more -
What is the difference between square tube and square bar?
Square bar refers to a square-shaped material produced by hot-rolling square billets, or by cold-drawing round steel. Theoretical Weight Formula: side length × side length × 0.00785 = kg/m. Square tubing refers to a tubular shape with a square cross-section. It...Read more -
What is the difference between round bars and deformed rebar?
In construction, there are many types of steel commonly used, among which round bars and rebar are the most prevalent. The main differences between them are as follows. Today, we’ll briefly discuss these differences. Round Bars (HPB Series) The surface of round bars...Read more -
Why Can Galvanized Steel Pipes Resist Corrosion for Decades?
Rusting is an inescapable fate for steel products. However, galvanized steel pipes are an exception — they can withstand harsh environments such as humidity and acid rain for decades without deteriorating. The secret behind this lies not in the steel pipe itself, but i...Read more -
Heat Treatment in Steel Processing—Annealing
In the processing and heat treatment of steel, annealing, normalizing, quenching, and tempering are four fundamental yet critical heat treatment processes. By controlling the heating temperature, holding time, and cooling rate, these processes alter the internal microst...Read more -
Practical Calculation Methods for scaffolding Budgets
Calculation Rules (1) When calculating scaffolding for interior and exterior walls, the areas occupied by door and window openings, ring openings, and similar features shall not be deducted. (2) When a building has sections of varying heights, calculations shall be perf...Read more
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