Unverified80% confidenceFactTime unknown
铝合金杆比钢杆轻约30%且不生锈，但抗弯强度略低；海边高盐雾环境优先铝合金或做过阳极氧化处理的杆件防锈
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80%
Confidence
Long-term
Relevance
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Unverified铝合金比钢管轻30%-40%且不生锈，但同管径下抗弯强度较低，需选加粗管径（≥19mm）弥补；海边、潮湿环境优先铝合金避免锈蚀89% similarUnverified铝合金外壳质轻耐腐蚀、性价比高，不锈钢（304）抗破坏和抗腐蚀更强但重且贵；沿海高盐雾地区应选304不锈钢或阳极氧化铝，普通塑料面板长期户外会脆化褪色88% similarUnverified铝合金框架比钢架轻30-40%且不生锈，适合徒步和潮湿环境；钢架更便宜更稳但重且沿海/雨林易锈蚀，海边露营优先铝合金88% similarUnverified太空铝（铝镁合金）本身不锈但表面氧化层被划破后会出现白色氧化粉末，比304不锈钢轻但承重和抗冲击性较弱，适合毛巾杆等轻负载不适合搁物架重物84% similarUnverified铝合金架轻便防锈易搬动但强度低于碳钢，同规格下钢架承重高约30%；潮湿卫生间/阳台优选铝或喷塑钢防锈84% similar
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