information Archives - Page 2 of 9

Color-Coated Sheet Thickness Selection Guide

Color-coated steel sheets (PPGI sheets, PPGL sheets) are popular building materials that play a vital role in architectural walls, roofs, ceilings, partitions, and floor decking structures through various forms such as flat sheets, corrugated sheets, and profiled sheets. The thickness of color-coated steel sheets determines their durability, corrosion resistance, tensile/compressive strength, snow load capacity, and […]

Color-Coated Sheet Thickness Selection Guide Read More »

VCM vs. PCM

VCM stands for Vinyl Clad Metal or Vinyl Laminated Metal, referring to vinyl-coated metal panels. PCM stands for Pre-Coated Metal, referring to pre-coated steel sheets. VCM and PCM are two common metal surface treatment methods. PCM has lower processing costs and is widely applied. VCM is a more advanced surface treatment technology developed from PCM,

VCM vs. PCM Read More »

Color Coated Steel – Process Classification

Wanzhi Group offers color-coated steel produced through three processing techniques: roll-coated color-coated steel, spray-coated color-coated steel, and VCM laminated steel. These products serve diverse applications spanning construction, interior decoration, industrial manufacturing, and high-end home appliances, balancing durability, aesthetics, and cost-effectiveness. Roll Coating Process Pre-coated metal materials produced via roll coating, also known as PCM (Pre-Coated

Color Coated Steel – Process Classification Read More »

Wanzhi Factory Value-Added Processing

Value-Added Processing Laminated: Provides additional surface protection for metal materials, suitable for high-end surface requirements. Embossing: Enhances the aesthetics, wear resistance, and scratch concealment of metal materials. Slitting: Cuts wide coils into narrow strips of specific widths, preparing them for subsequent processing. Flat Rolling: Flattens metal coils and shears them into flat sheets of specified

Wanzhi Factory Value-Added Processing Read More »

Knowledge of PPGI Coil

PPGI stands for Pre-painted Galvanized Iron, also known as Color-coated Galvanized Steel. PPGI coil is one of the most common forms of PPGI steel. Coils are widely favored across various processing sectors due to their ease of transportation and storage, as well as their flexible workability. PPGI Coil Specification Specification Details Thickness 0.12-1.5mm (Common: 0.12/0.14/0.16/0.18) Width

Knowledge of PPGI Coil Read More »

Knowledge of Matte Color-Coated Steel

Matte Color-Coated Steel is a flagship product of Wanzhi Group. We manufacture and sell matte PPGI steel, matte color-coated aluzinc steel, matte aluminum, matte stainless steel, and more. Matte-coated metal materials feature a soft luster without glare, and reflected images are not visible. They serve as a common solution in many architectural and appliance applications

Knowledge of Matte Color-Coated Steel Read More »

Surface Treatment of Galvanized Steel: Phosphating vs. Passivation

The core objective of surface treatment for galvanized steel is to “play to its strengths while mitigating its weaknesses”—preserving its excellent rust prevention (red rust resistance) capabilities while overcoming drawbacks such as susceptibility to white rust and poor coating adhesion. Currently, Wanzhi Group’s primary surface treatments for galvanized steel include passivation, phosphating, coating, sealing, and

Surface Treatment of Galvanized Steel: Phosphating vs. Passivation Read More »

Aluzinc Steel for Photovoltaic Mounting Structures

Photovoltaic mounting systems require long-term outdoor use and demand high corrosion resistance. Currently, commonly used corrosion-resistant metal materials include galvanized steel, galvanized aluminum-zinc steel, zinc-aluminum-magnesium alloys, aluminum alloys, and stainless steel. Among these, aluminum-zinc coated steel has gained prominence due to its exceptional cost-effectiveness. It is increasingly playing a vital role in components such as

Aluzinc Steel for Photovoltaic Mounting Structures Read More »

Standing Seam Metal Roofing Classification

Standing seam metal roofing is a building material widely used in large-span roofing systems for industrial plants, commercial buildings, public facilities, and high-end residences. It features waterproofing, wind resistance, and exceptional durability. Based on panel systems, it can be categorized into various types including standing seam systems, classic cap systems, flat lock systems, flat panel

Standing Seam Metal Roofing Classification Read More »

Steel and Steel Classification

Steel is a metallic material primarily composed of iron (Fe) with a carbon content below 2.11% (C<2.11%). Its carbon content typically ranges from 0.02% to 2.11%. Mechanical properties, machinability, and corrosion resistance can be enhanced by adding alloying elements such as manganese, silicon, chromium, and nickel. Steel can be classified based on chemical composition, smelting

Steel and Steel Classification Read More »