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🔩 金属重量计算器Metal Weight Calculator
按形状尺寸和材料密度计算钢板、圆钢、方钢、六角钢、钢管和扁钢的重量，支持碳钢、不锈钢、铝、铜、黄铜、钛等，可输入数量求总重。Calculate the weight of metal plate, round bar, square bar, hex bar, tube and flat bar from its dimensions and density — carbon steel, stainless, aluminium, copper, brass, titanium and more — with a quantity for the total.
使用说明与常见问题How-to & FAQ
「金属重量计算器」是什么？What is the Metal Weight Calculator tool?
按形状尺寸和材料密度计算钢板、圆钢、方钢、六角钢、钢管和扁钢的重量，支持碳钢、不锈钢、铝、铜、黄铜、钛等，可输入数量求总重。Calculate the weight of metal plate, round bar, square bar, hex bar, tube and flat bar from its dimensions and density — carbon steel, stainless, aluminium, copper, brass, titanium and more — with a quantity for the total.
如何使用「金属重量计算器」？How do I use the Metal Weight Calculator tool?
在「金属重量计算器」中，填写「形状」、「材料」、「直径/边长/宽度 A（mm）」、「厚度或壁厚 B（mm）」、「板宽 W（mm，仅板材）」等参数，结果会随输入实时计算并显示在下方。In the Metal Weight Calculator: Fill in "Shape", "Material", "Diameter / side / width A (mm)", "Thickness or wall B (mm)", "Plate width W (mm, plate only)"; results are recalculated instantly as you type.
怎么计算重量？How is the weight calculated?
重量 = 截面积 × 长度 × 密度。圆棒截面 πd²/4，方棒 a²，六角棒（对边距 s）√3/2·s²，圆管 π(D² − d²)/4，板材和扁钢为宽 × 厚。Weight = cross-section × length × density. Round bar πd²/4, square bar a², hex bar (across flats s) √3/2·s², tube π(D² − d²)/4, plate and flat bar width × thickness.
尺寸 A 指什么？What does A mean?
圆棒和圆管为外径，方棒为边长，六角棒为对边距离，扁钢为宽度；板材的宽度请填在 W，A 不使用。Outside diameter for round bar and tube, side for square bar, across-flats for hex bar, width for flat bar; for plate use W instead.
密度数据？Which densities?
纯金属（铝 2.70、铜 8.96、钛 4.51、铅 11.34、锌 7.14、银 10.49、金 19.32 g/cm³）取 CRC Handbook of Chemistry and Physics 中的室温密度；碳钢 7.85 和 304 不锈钢 7.93 是常用工程值（GB/T 20878-2007 中 06Cr19Ni10 为 7.93）。黄铜 8.50 和铸铁 7.20 随牌号变化较大，是示例值。铝合金、铜合金等的实际密度和尺寸公差都会让重量略有不同。Pure metals (aluminium 2.70, copper 8.96, titanium 4.51, lead 11.34, zinc 7.14, silver 10.49, gold 19.32 g/cm³) use room-temperature densities from the CRC Handbook of Chemistry and Physics; carbon steel 7.85 and 304 stainless 7.93 are standard engineering values (GB/T 20878-2007 lists 7.93 for 06Cr19Ni10). Brass 8.50 and cast iron 7.20 vary a lot by grade and are example values. Alloys and dimensional tolerances make real weights differ slightly.
「金属重量计算器」免费吗？需要注册吗？Is the Metal Weight Calculator free? Do I need an account?
「金属重量计算器」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Metal Weight Calculator is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.