Today we’ll address a common question from many customers: “Why is PPGI steel often cheaper than GI steel in the quotes I receive?” Is it normal for galvanized steel (GI) to cost more than pre-painted galvanized steel (PPGI), which has already undergone color coating? What are GI and PPGI? GI: Full name: Galvanized Steel. This […]
Why is Galvanized Steel more Expensive than PPGI Steel Read More »
Color-coated metal (PPGI, PPGL, PPAL, Color-coated stainless steel) commonly uses High Durability Polyester (HDP) and Silicone Modified Polyester (SMP) coatings as the most mainstream options between standard polyester and top-tier PVDF. Both share similar costs and equivalent corrosion resistance lifespans, both belonging to mid-to-high-end organic coatings for outdoor use. However, HDP-coated sheets are gradually replacing
Pre-Painted Metal Coatings: HDP vs SMP Read More »
The thickness of galvanized steel sheet refers to the thickness of the base metal (substrate), excluding the thickness of the surface zinc layer. There are several ways to express this thickness; some regions commonly use “gauge” (abbreviated as GA), while others use metric units (mm). Both methods are widely used in the field of metal
GI Sheet Gauge to mm Read More »
Galvanized structural steel is ubiquitous in construction projects and industrial facilities. Leveraging its high strength for load-bearing and long-lasting corrosion resistance, it serves as the skeletal material providing structural support and decorative functions across various building components. Based on its role in construction, it can be categorized into four types: primary structural steel, secondary structural
Classification of Galvanized Structural Steel for Construction Read More »
Galvanized steel tube leverage dual advantages in corrosion resistance and structural integrity. Their distinct cross-sectional forms—round pipes and square/rectangular pipes—precisely meet diverse demands ranging from fluid transportation to framework support. Round pipes, with their uniform stress distribution and smooth inner walls, specialize in conveying water, gas, oil, and other fluids. Square and rectangular pipes, meanwhile,
Applications of Galvanised Steel Tube Read More »
Galvanized wire, a metal wire with excellent corrosion resistance, is one of the most basic yet indispensable materials in construction, agriculture, industrial manufacturing, and everyday hardware. It is widely used in construction binding, agricultural greenhouses, and industrial protection. Galvanized wire can be divided into galvanized hard wire and galvanized soft wire according to its material
Galvanized Hard Wire VS Galvanized Flexible Wire Read More »
What is VCM Sheet? VCM Sheet consists of three layers: substrate, adhesive, and film. The substrate provides structural strength, while the film offers scratch resistance, yellowing resistance, decorative appeal, and rust prevention. Substrate Layer: Cold-rolled steel sheet (SPCC) or hot-dip galvanized sheet (DX51D+Z). Bonding Layer: Water-based or solvent-based adhesive. Coating Layer: PET, PVC, or PETG
Comparison of VCM Sheets for PET, PVC, and PET Film Read More »
Cold galvanization is a common metal anti-corrosion surface treatment technology for small and medium-sized components, indoor equipment, general application environments, and high-end manufacturing sectors. Alongside hot-dip galvanizing, it is regarded as a primary processing method for galvanized steel. Today, let’s comprehensively explore cold galvanizing from multiple dimensions including definition, standards, appearance, and process. Definition of
What is Cold Galvanization? Read More »
What is Zinc-Aluminum-Magnesium (ZAM) Steel? Zinc-Aluminum-Magnesium steel is a new high-performance steel material. It features a special alloy coating composed of zinc (Zn), aluminum (Al), magnesium (Mg), and trace elements applied via hot-dip galvanizing onto a low-carbon steel substrate. The inclusion of magnesium enables corrosion products to actively migrate and cover cuts, holes, or
Zinc-aluminum-magnesium Coating ZAM steel Used for Solar Read More »
Profiled Metal Roofing has become an indispensable material for building roofs due to its high cost-effectiveness, lightweight nature, quick installation, aesthetic appeal, durability, and strong malleability. It has replaced traditional building materials such as clay/cement tiles and asphalt shingles in numerous applications. Color-Coated Profiled Metal Roofing Also known as PPGI/PPGL Profiled Roofing, this is the
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