直径80mm钢管，壁厚5mm，每米重量是多少？？ 钢管90mm无缝钢管,壁厚5mm,一米多少公斤

\u94a2\u7ba1\u76f4\u5f8489MM\u58c1\u539a5MM\u6bcf\u7c73\u91cd\u91cf\u662f\u591a\u5c11\u5462\uff1f

\u94a2\u7ba1\u76f4\u5f8489MM\u58c1\u539a5MM\u6bcf\u7c73\u91cd\u91cf\u662f10.3572\u516c\u65a4\u3002
\u5c0f\u53e3\u5f84\u65e0\u7f1d\u94a2\u7ba1\u91cd\u91cf\u8ba1\u7b97\u516c\u5f0f:
[(\u5916\u5f84-\u58c1\u539a)*\u58c1\u539a]*0.02466 = kg/\u7c73(\u6bcf\u7c73\u7684\u91cd\u91cf)

\u5916\u5f8450mm,\u7ba1\u58c15mm\u4e3a5.60475\u516c\u65a4/\u7c73
\u4e0d\u9508\u94a2\u7ba1\u8ba1\u7b97\u516c\u5f0f\u4e3a\uff1a\u76f4\u7ecf-\u58c1\u539a\u00d7\u58c1\u539a\u00d70.02491\u4e3a\u6bcf\u7c73\u7684\u91cd\u91cf
\u5982\u679c\u4f60\u4ee5\u540e\u5728\u4e0d\u9508\u94a2\u7ba1\u4e0a\u6709\u4e0d\u61c2\u7684\u5730\u65b9\uff0c\u53ef\u4ee5\u6765\u7535\uff0c0577-28809836
\u8be6\u60c5\u770b\u6211\u7b80\u4ecb\u6709\u4ecb\u7ecd

体积乘以密度
π（0.04*0.04-0.035*0.035）*1*7850=9.248千克/米

鐩村緞80mm閽㈢,澹佸帤5mm,姣忕背閲嶉噺鏄灏??
绛旓細蟺锛0.04*0.04-0.035*0.035锛*1*7850=9.248鍗冨厠/绫

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绛旓細1. 涓嶉攬閽CH40S鐨勫叕绉扮洿寰勫拰澹佸帤瀵圭収琛ㄥ涓嬶細- 鍏О鐩村緞10mm锛屽鍘2.3mm - 鍏О鐩村緞15mm/20mm锛屽鍘2.9mm - 鍏О鐩村緞25mm锛屽鍘3.2mm 2. 鍏О鐩村緞32mm/40mm锛屽鍘3.6mm - 鍏О鐩村緞50mm锛澹佸帤4mm - 鍏О鐩村緞65mm锛屽鍘5mm 3. 鍏О鐩村緞80mm锛屽鍘5.6mm - 鍏О鐩村緞100mm/125mm锛屽鍘6....

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