Procurement🌟 不锈钢是什么？它不是“不会生锈”，而是“更难生锈、耐腐蚀超稳定”。
🌟 What is stainless steel? It’s not “never rusts,” but “high corrosion resistance with long-lasting stability.”
🧬 不锈钢的核心靠“铬”（Cr）。含铬 ≥10.5% 才能形成保护膜。
🧬 Stainless steel relies on chromium (Cr). With ≥10.5% Cr, it forms a protective passive film.
🔧 常见材质差别：
🔧 Common Grades & Differences:
— 304/304L：综合 304/304L: Best overall performance, globally the most used.
— 316L：加钼，耐腐蚀更强，海边/化工首选。
— 316L: Contains molybdenum, better corrosion resistance; ideal for coastal & chemical use.
— 430：铁素体，磁0: Ferritic, magnetic, cost-friendly.
— 201：锰代镍，经济选择，但耐腐蚀弱于304。
— 201: Nickel-sing grade; economical but lower corrosion resistance than 304.
✨ 表面处理影响外观与用途：
✨ Surface Finishes Shape Appearance & Application:
— 2B：最常见，适合拉伸、焊接、加工。
— 2B: Most common, good for forming and welding.
— BA：亮面更精致，用于家电装饰。
— BA: Bright finish, widely used in appliances.
— NO.4 / HL：拉丝纹理，建筑与装饰行业常用。
— NO.4 / HL: Brushed finishes used in architecture & decoration.
— Mirror 8K：高反射镜面，高端工程常见。
— Mirror 8K: High-reflection mirror for premium projects.
📐 尺寸选择影响应用–6.0mm × 1000/1219/1500mm。
📐 Size matters — common sheet range is 0.3–6.0mm × 1000/1219/1500mm.
🚚 所有不锈钢最终表现，靠“材质稳定 + 加工正确 + 包装到位”三件事决定。
🚚 Final performance depends on “stable grade + proper processing + export-level packing.”
🌾 怡禾集团同步农业机械配件 & 金矿用（Sodium Cyanide）。
🌾 YIHO also supplies agricultural machinery parts & sodium cyanide for gold mining projects.
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