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  • 用於表示厚度的計量單位
  • 詞語

gauge

用於表示厚度的計量單位

Ga.是GAUGE 的縮寫,是起源於北美的一種關於直徑的長度計量單位,屬於布朗·夏普(Brown&Sharpe)計量系統。1869年初,美國的J.R.布朗和L.夏普將研製的外徑千分尺進行商業銷售,初步建立該測量體系。最初用在醫學和珠寶領域,數字越大直徑越小,后經推廣也用於表示厚度。

概況


GAUGE
有色金屬板和鋼鐵板同是某某Ga.的時候,厚度實際上不一樣,同是某某Ga.的板材和管材數值也不一樣。

應用


16Ga.對應:標準鋼材厚度為0.0598 inches;
對應鍍鋅鋼材厚度為0.0635 inches
對應鋁材厚度為0.0508 inches

對照表


由於Ga.進位和英寸不同,因此不存在轉換公式,單位對照如下
Gauge (Ga.)標準鋼材厚度(英寸)鍍鋅鋼材厚度(英寸)鋁材厚度(英寸)標準鋼材厚度(mm)鍍鋅鋼材厚度(mm)鋁材厚度(mm)
30.23910.22946.073145.82676
40.22420.20435.694685.18922
50.20920.18195.313684.62026
60.19430.1624.935224.1148
70.17930.14434.554223.66522
80.16440.12854.175763.2639
90.14950.15320.11443.79733.891282.90576
100.13450.13820.10193.41633.510282.58826
110.11960.12330.09073.037843.131822.30378
120.10460.10840.08082.656842.753362.05232
130.08970.09340.0722.278382.372361.8288
140.07470.07850.06411.897381.99391.62814
150.06730.0710.05711.709421.80341.45034
160.05980.06350.05081.518921.61291.29032
170.05380.05750.04531.366521.46051.15062
180.04780.05160.04031.214121.310641.02362
190.04180.04560.03591.061721.158240.91186
200.03590.03960.0320.911861.005840.8128
210.03290.03660.02850.835660.929640.7239
220.02990.03360.02530.759460.853440.64262
230.02690.03060.02260.683260.777240.57404
240.02390.02760.02010.607060.70040.51054
250.02090.02470.01790.530860.627380.45466
260.01790.02170.01590.454660.551180.40386
270.01640.02020.01420.416560.513080.36068
280.01490.01870.01260.378460.474980.32004
290.01350.01720.01130.34290.436880.28702
300.0120.01570.010.30480.398780.254
310.01050.01420.00890.26670.360680.22606
320.00970.01340.0080.246380.340360.2032
330.0090.00710.22860.18034
340.00820.00630.208280.16002
350.00750.00560.19050.14224
360.00670.17018