news — from the mill.
Production notes, industry updates, and a little colour on what we’re making this month.
Epoxy Primer Back Coating for PPGI: The Ultimate 2026 Guide
Review certificate records, scope and current status. Confirm order-specific documentation and inspection requirements with the export team. Why Epoxy Primer Back Coating Matters for PPGI Coils The back coating of a PPGI coil is often overlooked, yet it directly impacts the material’s lifespan. Epoxy primer back coating for PPGI acts as a barrier against humidity, […]
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SMP Coating PPGI for Tropical Climate: 2026 Guide
Review certificate records, scope and current status. Confirm order-specific documentation and inspection requirements with the export team. Why SMP Coating Outperforms Standard Polyester in Humid Climates Standard polyester (PE) coatings typically fail within 3–5 years in tropical environments due to hydrolysis and UV degradation. SMP coating PPGI for tropical climate applications incorporates silicone monomers (typically […]
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PVDF Coated Steel Coil for 20 Year Warranty: Premium PPGI from China
Review certificate records, scope and current status. Confirm order-specific documentation and inspection requirements with the export team. Why PVDF Coating Delivers a True 20 Year Warranty Polyvinylidene fluoride (PVDF) resin forms the backbone of the highest-performance coil coatings in the construction industry. Unlike standard polyester or silicone-modified polyester, PVDF contains over 70% Kynar 500 or […]
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AZ100 vs AZ150 Galvalume Coating Difference: Which Grade Performs Better?
Review certificate records, scope and current status. Confirm order-specific documentation and inspection requirements with the export team. What Is AZ100 and AZ150 Galvalume Coating? Galvalume steel coil is a cold-rolled steel substrate coated with an aluminum-zinc alloy (55% Al, 43.4% Zn, 1.6% Si). The coating weight is measured in grams per square meter (g/m²) for […]
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Galvanized Steel Coil Yield Strength Explained: A Complete Guide
Understanding galvanized steel coil yield strength explained is critical for engineers and procurement managers who demand structural integrity in every project. Yield strength determines the maximum stress a hot dip galvanized coil can withstand before permanent deformation occurs. At ChinaCNU Steel, our factory in Boxing, Binzhou produces GI coil with precise yield strength ranges from […]
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Hot Dip Galvanized Steel Coil Grade DC51D – ChinaCNU Steel
Certificate records — Review the certificate holder, scope and current verification status. Confirm the documents applicable to your order. Understanding Hot Dip Galvanized Steel Coil Grade DC51D DC51D is a European standard designation for hot dip galvanized steel coil intended for cold forming. The “D” indicates a drawing quality steel, while “C51D” refers to the […]
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ASTM A653 CS Type B Galvanized Coil – High-Quality GI Coil Supplier
Certificate records — Review the certificate holder, scope and current verification status. Confirm the documents applicable to your order. What Is ASTM A653 CS Type B Galvanized Coil? ASTM A653 is the standard specification for steel sheet, zinc-coated (galvanized) by the hot-dip process. The “CS Type B” designation refers to commercial steel with a specific […]
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S550GD High Strength Galvanized Steel Coil – Premium GI Coil Supplier
Review certificate records, scope and current status. Confirm order-specific documentation and inspection requirements with the export team. What Makes S550GD High Strength Galvanized Steel Coil Superior? Certificate records — Review the certificate holder, scope and current verification status. Confirm the documents applicable to your order. Typical Applications for S550GD Galvanized Coil Construction and infrastructure projects […]
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S350GD Structural Galvanized Steel Coil: High-Strength GI Coil for Demanding Applications
Review certificate records, scope and current status. Confirm order-specific documentation and inspection requirements with the export team. What Is S350GD Structural Galvanized Steel Coil? S350GD is a structural grade designation under EN 10346, indicating a minimum yield strength of 350 MPa. The “GD” stands for “Galvanized Drawing,” though this grade is primarily used for structural […]
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DX52D vs DX51D Galvanized Steel Grade: Key Differences in 2026
When sourcing hot dip galvanized coil for industrial applications, engineers and procurement managers frequently compare the DX52D vs DX51D galvanized steel grade to determine the best fit for their projects. Understanding the mechanical properties, forming characteristics, and typical uses of these two popular GI coil grades is essential for optimizing performance and cost. At ChinaCNU […]
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