Unverified82% confidenceDecision RuleTime unknown
框架管径直接决定承重：钢管方管≥1.2mm壁厚、25mm以上截面才适合重载；壁厚＜0.8mm的薄壁管长期放重物易变形弯曲
1
Sources
82%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified管材直径和壁厚是承重的核心，直径≥22mm、壁厚≥0.6mm的不锈钢管抗弯能力明显更强；细管产品放重物会中间下沉变形92% similarUnverified免组装床架的钢管管径直接决定承重上限，主承重横梁管径≥25mm且壁厚≥1.0mm可稳定支撑200kg以内，管径＜22mm或壁厚＜0.8mm易出现中间塌陷和异响91% similarUnverified钢管管径与壁厚决定承重：直径≥25mm、壁厚≥0.8mm的碳钢管单层可稳定承重15-20kg；壁厚＜0.6mm的薄壁管长期承重易弯曲，选购时可要求商家标注管径和壁厚91% similarUnverified管材壁厚≥1.0mm且直径≥25mm的钢管抗弯性明显优于壁厚0.6mm的薄管，同样标称承重下薄管中间会下垂90% similarUnverified钢管框架直径应≥16mm且带加厚焊点，10mm以下细管长期承重易弯曲，判断耐用性可看管壁厚度和横杆密度90% similar
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