铝管尺寸全攻略:方管、矩形管、圆管规格表、合金牌号、制造工艺与应用场景
什么是铝管及其用途?
铝管是用铝(地壳含量丰富、质软、延展、表面自生氧化膜耐蚀)制成的中空长条型材,强重比优异。航空航天几乎全用铝管构架;赛车用铝管做支架/隔热罩;灯光舞台搭建塔架/桁架因轻便易搭运广泛采用。
铝管 vs 铝管(Pipe vs Tube)
铝管通常指输送流体/气体用圆管,尺寸以内径为基准(决定流通量)。铝管形状多样(方/椭圆等),以外径×壁厚标识,主攻结构框架。
铝管 vs 钢管
铝管常用合金牌号
铝管制造工艺
挤压、铸造、锻造、成型轧制、拉拔、机加工、水切割、焊接均可制管。挤压最主流,尤其多截面形状/尺寸量产。
铝挤压工艺
加热铝锭(胚料)强制通过模具,连续成型模具截面形状(圆/方/矩形管)。可精准成型复杂截面。
铝铸造
熔铝浇注模具冷却成型。适合厚壁/复杂件,但管类挤压控制形状强度更优。
铝锻造
热态锤压/挤压成型,重组内部结构增强。关键耐久/抗应力件用,管类较少见。
成型轧制
板/坯轧制减薄/成管。产薄壁管,多用于大板/大截面而非小直径管。
拉拔
冷拉拔减径、提表面光洁度与强度。线材/薄壁管精整常用。
机加工
CNC 切削成螺纹/孔等二次加工特征,通常在挤压/铸造后精加工。
水切割
高压水切割无热影响区,保留金属本性,精密下料管材/板材。
焊接
MIG/TIG 气保焊连接铝管组装框架/结构。
挤压八大核心步骤
铝管三大主流截面形状
标准铝管尺寸表(壁厚、重量、规格、内外径)
下表列出英制圆/矩形/方管尺寸。公制尺寸(mm)可参考 DIN 1785 & ASTM B111(冷凝器/加热盘管用铝黄铜管),如 10mm×1mm。
铝圆管尺寸与重量表
| 外径 (inch) | 壁厚 (inch) | 钢管规格 | 内径 (inch) | 重量 (lbs/ft) |
|---|---|---|---|---|
| 3/16 | .035 | 20 | .117 | .0197 |
| 3/16 | .049 | 18 | .089 | .025 |
| 1/4 | .035 | 20 | .180 | .027 |
| 1/4 | .049 | 18 | .152 | .036 |
| 1/4 | .058 | 17 | .134 | .041 |
| 5/16 | .035 | 20 | .242 | .036 |
| 5/16 | .049 | 18 | .214 | .047 |
| 5/16 | .058 | 17 | .196 | .055 |
| 3/8 | .035 | 20 | .305 | .043 |
| 3/8 | .049 | 18 | .277 | .060 |
| 3/8 | .058 | 17 | .259 | .068 |
| 3/8 | .065 | 16 | .245 | .074 |
| 7/16 | .035 | 20 | .367 | .051 |
| 7/16 | .049 | 18 | .339 | .070 |
| 7/16 | .065 | 16 | .307 | .089 |
| 1/2 | .028 | 22 | .444 | .049 |
| 1/2 | .035 | 20 | .430 | .059 |
| 1/2 | .049 | 18 | .402 | .082 |
| 1/2 | .058 | 17 | .384 | .095 |
| 1/2 | .065 | 16 | .370 | .107 |
| 5/8 | .028 | 22 | .569 | .061 |
| 5/8 | .035 | 20 | .555 | .075 |
| 5/8 | .049 | 18 | .527 | .106 |
| 5/8 | .058 | 17 | .509 | .121 |
| 5/8 | .065 | 16 | .495 | .137 |
| 3/4 | .035 | 20 | .680 | .091 |
| 3/4 | .049 | 18 | .652 | .125 |
| 3/4 | .058 | 17 | .634 | .148 |
| 3/4 | .065 | 16 | .620 | .160 |
| 3/4 | .083 | 14 | .584 | .204 |
| 7/8 | .035 | 20 | .805 | .108 |
| 7/8 | .049 | 18 | .777 | .151 |
| 7/8 | .058 | 17 | .759 | .175 |
| 7/8 | .065 | 16 | .745 | .199 |
| 1 | .035 | 20 | .930 | .123 |
| 1 | .049 | 18 | .902 | .170 |
| 1 | .058 | 17 | .884 | .202 |
| 1 | .065 | 16 | .870 | .220 |
| 1 | .083 | 14 | .834 | .281 |
| 1-1/8 | .035 | 20 | 1.055 | .139 |
| 1-1/8 | .058 | 17 | 1.009 | .228 |
| 1-1/4 | .035 | 20 | 1.180 | .155 |
| 1-1/4 | .049 | 18 | 1.152 | .210 |
| 1-1/4 | .058 | 17 | 1.134 | .256 |
| 1-1/4 | .065 | 16 | 1.120 | .284 |
| 1-1/4 | .083 | 14 | 1.084 | .357 |
| 1-3/8 | .035 | 20 | 1.305 | .173 |
| 1-3/8 | .058 | 17 | 1.259 | .282 |
| 1-1/2 | .035 | 20 | 1.430 | .180 |
| 1-1/2 | .049 | 18 | 1.40 | .260 |
| 1-1/2 | .058 | 17 | 1.384 | .309 |
| 1-1/2 | .065 | 16 | 1.370 | .344 |
| 1-1/2 | .083 | 14 | 1.334 | .434 |
| 1-1/2 | .125 | 1/8 | 1.250 | .630 |
| 1-1/2 | .250 | 1/4 | 1.000 | 1.150 |
| 1-5/8 | .035 | 20 | 1.555 | .206 |
| 1-5/8 | .058 | 17 | 1.509 | .336 |
| 1-3/4 | .058 | 17 | 1.634 | .363 |
| 1-3/4 | .083 | 14 | 1.584 | .510 |
| 1-7/8 | .508 | 17 | 1.759 | .389 |
| 2 | .049 | 18 | 1.902 | .350 |
| 2 | .065 | 16 | 1.870 | .450 |
| 2 | .083 | 14 | 1.834 | .590 |
| 2 | .125 | 1/8 | 1.750 | .870 |
| 2 | .250 | 1/4 | 1.500 | 1.620 |
| 2-1/4 | .049 | 18 | 2.152 | .398 |
| 2-1/4 | .065 | 16 | 2.120 | .520 |
| 2-1/4 | .083 | 14 | 2.084 | .660 |
| 2-1/2 | .065 | 16 | 2.370 | .587 |
| 2-1/2 | .083 | 14 | 2.334 | .740 |
| 2-1/2 | .125 | 1/8 | 2.250 | 1.100 |
| 2-1/2 | .250 | 1/4 | 2.000 | 2.080 |
| 3 | .065 | 16 | 2.870 | .710 |
| 3 | .125 | 1/8 | 2.700 | 1.330 |
| 3 | .250 | 1/4 | 2.500 | 2.540 |
铝矩形管尺寸与重量表
| 规格 (inch) | 壁厚 (inch) | 重量 (lbs/ft) |
|---|---|---|
| .500 x 1 | .093 | .293 |
| .500 x 2 | .125 | .672 |
| .750 x 1.500 | .062 | .319 |
| .750 x 1.500 | .125 | .600 |
| .750 x 1.750 | .125 | .600 |
| 1 x 1.500 | .125 | .675 |
| 1 x 2 | .062 | .428 |
| 1 x 2 | .075 | .499 |
| 1 x 2 | .083 | .554 |
| 1 x 2 | .093 | .628 |
| 1 x 2 | .125 | .826 |
| 1 x 3 | .062 | .577 |
| 1 x 3 | .125 | 1.125 |
| 1 x 4 | .062 | .725 |
| 1 x 4 | .125 | 1.425 |
| 1 x 5 | .125 | .976 |
| 1 x 6 | .125 | 2.026 |
| 1.250 x 2.500 | .125 | 1.050 |
| 1.500 x 2 | .125 | .976 |
| 1.500 x 2 | .188 | 1.406 |
| 1.500 x 3 | .125 | 1.272 |
| 1.750 x 3 | .125 | 1.350 |
| 1.750 x 4 | .093 | 1.242 |
| 1.750 x 4 | .125 | 1.650 |
| 2 x 2.50 | .125 | 1.275 |
| 2 x 3 | .093 | 1.075 |
| 2 x 3 | .125 | 1.426 |
| 2 x 3 | .188 | 2.086 |
| 2 x 3 | .250 | 2.700 |
| 2 x 4 | .125 | 1.724 |
| 2 x 4 | .250 | 3.300 |
| 2 x 5 | .093 | 1.520 |
| 2 x 5 | .125 | 2.025 |
| 2 x 5 | .250 | 3.900 |
| 2 x 6 | .125 | 2.327 |
| 2 x 6 | .188 | 3.440 |
| 2 x 6 | .250 | 4.500 |
| 2 x 7 | .125 | 2.624 |
| 2 x 8 | .125 | 2.925 |
| 2 x 8 | .250 | 5.700 |
| 2 x 10 | .125 | 3.541 |
| 2 x 10 | .250 | 6.900 |
| 2 x 12 | .188 | 6.210 |
| 2.5 x 3 | .125 | 1.574 |
| 2.5 x 7 | .125 | 3.115 |
| 2.5 x 9 | .250 | 6.468 |
| 2.5 x 12 | .250 | 8.400 |
| 3 x 4 | .125 | 2.026 |
| 3 x 6 | .125 | 2.625 |
| 3 x 6 | .188 | 3.891 |
| 3 x 6 | .250 | 5.100 |
| 3 x 8 | .188 | 4.794 |
| 3 x 10 | .125 | 3.824 |
| 3 x 12 | .188 | 6.613 |
| 4 x 6 | .125 | 2.925 |
| 4 x 6 | .188 | 4.256 |
| 4 x 6 | .250 | 5.700 |
| 4 x 8 | .250 | 6.900 |
| 4 x 10 | .250 | 8.036 |
| 4 x 12 | .250 | 9.3 |
| 5 x 10 | .250 | 9.752 |
| 6 x 8 | .188 | 6.196 |
| 6 x 8 | .500 | 15.286 |
| 6 x 10 | .19 | 7.171 |
铝方管尺寸与重量表
| 边长 (inch) | 壁厚 (inch) | 重量 (lbs/ft) |
|---|---|---|
| .500 | .062 | .131 |
| .625 | .062 | .168 |
| .750 | .040 | .131 |
| .750 | .045 | .145 |
| .750 | .062 | .206 |
| .750 | .093 | .293 |
| .750 | .125 | .374 |
| 1 | .062 | .278 |
| 1 | .075 | .317 |
| 1 | .093 | .405 |
| 1 | .125 | .524 |
| 1.250 | .062 | .353 |
| 1.250 | .093 | .506 |
| 1.250 | .125 | .675 |
| 1.500 | .062 | .420 |
| 1.500 | .090 | .632 |
| 1.500 | .125 | .824 |
| 1.500 | .188 | 1.184 |
| 1.500 | .250 | 1.500 |
| 1.750 | .093 | .732 |
| 1.750 | .125 | .975 |
| 2 | .062 | .604 |
| 2 | .093 | .851 |
| 2 | .125 | 1.126 |
| 2 | .188 | 1.627 |
| 2 | .250 | 2.052 |
| 2.250 | .095 | .982 |
| 2.500 | .075 | .855 |
| 2.500 | .093 | 1.074 |
| 2.500 | .125 | 1.425 |
| 2.500 | .188 | 2.076 |
| 2.500 | .375 | 3.824 |
| 3 | .093 | 1.298 |
| 3 | .125 | 1.726 |
| 3 | .188 | 2.533 |
| 3 | .250 | 3.300 |
| 3.5 | .230 | 3.610 |
| 4 | .125 | 2.324 |
| 4 | .150 | 2.772 |
| 4 | .250 | 4.500 |
| 4.5 | .093 | 1.955 |
| 5 | .125 | 2.925 |
| 5 | .250 | 5.700 |
| 6 | .125 | 3.525 |
| 6 | .250 | 6.900 |
| 6 | .500 | 12.936 |
| 7 | .156 | 5.120 |
| 8 | .188 | 7.050 |
| 10 | .250 | 11.7 |
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