news — from the mill.
Production notes, industry updates, and a little colour on what we’re making this month.
SGCC vs DX51D: What Is the Difference Between These Galvanized Grades?
Importers constantly ask whether SGCC and DX51D are the same material. Short answer: they are the commercial-quality galvanized grades of two different standards families — SGCC under Japanese JIS G3302, DX51D under European EN 10346 — and for most forming and roofing work they are interchangeable. The details matter when your buyer or consultant writes […]
Read →Z180 vs Z275 Zinc Coating: Which Galvanized Steel Coil Should You Order?
Zinc coating mass is the single biggest driver of galvanized coil price after the base steel itself. Z180 and Z275 are the two most quoted classes under EN 10346, and choosing between them changes both your landed cost and how long the steel survives in service. Here is the practical comparison we walk buyers through […]
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Hot Rolled vs Cold Rolled Steel Coil for Galvanizing: 2026 Guide
When selecting a hot rolled vs cold rolled steel coil for galvanizing, manufacturers must understand how each substrate performs in the galvanizing process. This choice directly impacts the quality of GI coil and PPGI coil output. At ChinaCNU Steel, our Qingdao factory has exported over 500,000 tons of galvanized steel coil to 80+ countries since […]
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Mill Test Certificate MTC for Galvanized Coil: Complete Buyer Guide 2026
Every professional buyer of hot dip galvanized coil knows that a mill test certificate MTC for galvanized coil is the single most important document for verifying product quality, chemical composition, and mechanical properties. Without a valid MTC, you risk receiving substandard GI coil that fails in forming, welding, or corrosion resistance. At ChinaCNU Steel, we […]
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Steel Coil HS Code and Import Duty Guide 2026
Understanding the correct steel coil HS code and import duty guide is essential for any importer of galvanized steel coil, PPGI coil, or GI coil in 2026. Misclassification can lead to costly penalties, delayed customs clearance, and unexpected tariff payments. Whether you are sourcing from China, Vietnam, or India, knowing the exact Harmonized System (HS) […]
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Steel Coil Sample Order Before Bulk Purchase: A Smart Buyer’s Guide
When sourcing galvanized steel coil or PPGI coil for your next project, the most prudent step you can take in 2026 is to place a steel coil sample order before bulk purchase. This single decision protects your capital, verifies material quality, and ensures the product meets your exact specifications before committing to large volumes. At […]
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How to Verify a Galvanized Steel Coil Supplier in 2026
When sourcing materials for construction, automotive, or industrial applications, knowing how to verify a galvanized steel coil supplier is essential to avoid costly quality failures. A reliable supplier ensures consistent zinc coating, proper mechanical properties, and on-time delivery. This guide covers the exact verification steps used by procurement professionals, including factory audits, material testing, and […]
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Steel Coil Lead Time from China Explained: 2026 Guide
Understanding steel coil lead time from China explained is essential for buyers who need to manage inventory, avoid project delays, and secure the best FOB pricing. In 2026, global supply chains remain dynamic, and knowing exactly how long it takes to produce and ship GI coil, PPGI coil, or galvanized steel coil from a reliable […]
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Third Party Inspection SGS BV for Steel Coil: Your 2026 Quality Guide
When importing galvanized steel coil, PPGI coil, or GI coil from China, ensuring product quality is non-negotiable. A third party inspection SGS BV for steel coil provides the independent verification you need before shipment. At ChinaCNU Steel, we facilitate these inspections at our Qingdao factory, giving you complete confidence in every order. This guide explains […]
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Steel Coil Seaworthy Export Packing Standard 2026
When shipping galvanized steel coil, PPGI coil, or GI coil internationally, the steel coil seaworthy export packing standard is the single most critical factor determining cargo safety and buyer satisfaction. At ChinaCNU Steel, our Qingdao factory has refined this standard over 15+ years of export to 80+ countries. Every coil leaving our warehouse meets rigorous […]
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