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430 · 304 · 铁素体 · 选型

430 和 304 怎么选:厨具、装饰与成本边界

430 是铁素体不锈钢,成本低、导热好,适合干环境装饰与部分厨具;潮湿、盐雾或深冲场景仍应优先 304。
430(1.4016,约 16% Cr)与 304(1.4301,18% Cr + 8% Ni)是最常被比较的两个牌号。
主要差异:
• 组织:430 为铁素体,304 为奥氏体;430 有磁性,304 通常无磁(冷加工后可能带弱磁)。 • 耐蚀:304 的铬镍组合在潮湿、含氯环境下明显更稳;430 在干燥室内或一般装饰环境可用,但不适合长期潮湿、沿海或食品加工湿区。 • 成型:430 延展性低于 304,深冲易开裂;304 深冲与折弯更友好。 • 成本:430 不含镍,价格通常更低且波动小。
适用建议:
1) 室内装饰、干区外壳、部分家电面板:430 性价比高; 2) 厨具接触水与食物、沿海建筑、深冲件:优先 304; 3) 焊接结构:430 焊接性弱于 304,焊后韧性下降明显,需谨慎。
采购时明确使用环境(是否潮湿/含盐/深冲)比只看牌号价格更重要。
Compiled by SteelWe editors and industry experts. For industry exchange only; not trading or investment advice. Cite the source when quoting.
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