Unverified80% confidenceFactTime unknown
线管径是判断金属架承重的关键：管径≥25mm或方管≥25×25mm适合重载，19mm以下细管仅适合轻物，商家标注的载重需除以2-3倍才是实际安全值
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Unverified管径是稳定性关键：25mm以上不锈钢管管壁厚度≥1mm才能承受横臂力矩，铝合金架轻便但同管径承重比钢架低约30%83% similarUnverified承重能力优先选标称≥120kg的产品，铝管壁厚需≥1.2mm，管径≥19mm，低于此规格的轻量款长期使用易出现管材变形或焊点开裂83% similarUnverified管径决定稳定性：钢管选直径≥25mm、壁厚≥0.8mm，铝合金因材质软需≥28mm或加粗方管，管径低于22mm的伸缩架横向晃动明显、不适合挂载重物83% similarUnverified钢管直径是承重核心指标：≥22mm管径适合重载（每层20kg+），16-19mm为日常轻中载，＜16mm易变形晃动82% similarUnverified钢管直径是承重关键，管径≥19mm（约6分管）比13mm细管抗弯性显著更强，选购时看管壁厚度≥0.6mm避免踩踏或压重变形81% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/385908API
curl https://kongchang.com/api/v1/knowledge/claims/385908MCP
get_claim(id=385908)