Insights
Read practical steel sourcing insights from Yihang Metal, including grade selection, standards comparison, price trends, logistics planning and import risk control.
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PVDF (Kynar 500) Coil Coating: When Buyers Should Pay for Premium 70% PVDF vs SMP and PE for Architectural Roofing
If you are sourcing pre-painted steel coil for a roofing, facade, or architectural project that is supposed to look good in 20 years, not 5, you will be…
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ER308 vs ER309 vs ER316 Stainless Welding Wire: How Buyers Choose the Right Filler Metal
If you are buying stainless steel welding wire for a fabrication shop, a pressure-parts job, or an export project, you will be quoted three filler metals that sound…
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Tinplate vs Tin-Free Steel (TFS/ECCS): Which Packaging Steel Buyers Should Choose for Food, Beverage, and Aerosol Cans
If you are sourcing thin steel for food cans, beverage ends, aerosols, crown caps, or general packaging, you are almost certainly choosing between two materials that look similar…
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How to Track Steel Prices Week by Week: Indexes, LME, and Free Tools Buyers Actually Use
If you source steel from China on a recurring basis, you already know the frustration: the price a supplier quoted on Monday is not the price you will…
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Steel Coil and Sheet Surface Defects: A Buyer’s Visual Guide to 12 Common Flaws and How to Avoid Them at Order Stage
Why Most Coil Defects Are Preventable at Order Stage, Not Inspection Stage If your QC team keeps rejecting incoming loads for the same recurring flaws, the problem usually…
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EN 10204 3.1 vs 3.2 Certificate: When the 3.2 MTC Is Mandatory (and How to Avoid Documentation Rejections at Customs)
If you source steel from China for anything more demanding than a garden shed, the paperwork that travels with the load can make or break the deal —…
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Zinc-Aluminum-Magnesium (ZAM) vs Galvanized vs Galvalume: Which Coated Steel Lasts Longer for Your Project?
If you are specifying coated steel for an outdoor, coastal, or agricultural project in 2026, you have probably been offered three options that sound almost identical: hot-dip galvanized…
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303 vs 416 vs 430F Free-Machining Stainless Steel and When to Step Up to 420 / 440C for Knives and Tools
Why “Free-Machining” Stainless Exists — the Sulfur/Phosphorus Trade-Off (and the Corrosion Cost) If you have ever watched a CNC lathe choke on stringy, galling chips while turning 304,…
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6063 vs 6061 Aluminum Extrusion: Which Alloy Buyers Should Choose for Windows, Doors, and Structural Frames
Quick answer: pick by cross-section and load, not by price For most fenestration and architectural trim — windows, doors, curtain-wall mullions, handrails, lighting housings — 6063 is the…
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Super Duplex 2507 vs Duplex 2205 Stainless Steel Plate: When the Upgrade to 2507 Pays Off
Quick answer: when 2507 is worth it If your service environment pushes chloride level, temperature, or acidity past where standard 2205 duplex is comfortable, 2507 super duplex (UNS…