Unverified85% confidenceTradeoffTime unknown
美工刀/手术刀类刀片选SK5高碳钢锋利度最佳但易生锈，选不锈钢则锋利度略降但防锈；潮湿环境（浴室、户外）优先不锈钢，追求极致切割选高碳钢并注意保养
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85%
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Long-term
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UnverifiedSK5高碳钢刀片适合修剪软枝嫩条，硬度HRC55-58但耐腐蚀差需常上油；日式SKS-51合金钢或钛镀层刀片抗锈性更好，适合修剪含汁液多的果树和潮湿环境使用75% similarUnverified高碳钢(如1095、SK5)保持刃口锋利久、易磨且韧性好抗崩，但易生锈需常保养上油；不锈钢(如440C、D2、14C28N)防锈免维护但相对更脆。潮湿海岛/热带选不锈钢，干燥内陆或愿意保养选高碳钢73% similarUnverified材质权衡：不锈钢/碳钢承重最强但外观偏工业风且怕潮生锈（低价碳钢喷漆易剥落生锈）；实木质感好但吸潮变形、承重一般；铝合金轻便防锈但管壁薄承重弱，阳台潮湿环境优先304不锈钢或阳极氧化铝70% similar
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