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2. Sheet metal - Wikipedia

   en.wikipedia.org/wiki/Sheet_metal

   In most of the world, sheet metal thickness is consistently specified in millimeters. In the U.S., the thickness of sheet metal is commonly specified by a traditional, non-linear measure known as its gauge. The larger the gauge number, the thinner the metal. Commonly used steel sheet metal ranges from 30 gauge to about 7 gauge.

3. Birmingham gauge - Wikipedia

   en.wikipedia.org/wiki/Birmingham_gauge

   The Birmingham gauge ranges from 5/0 or 00000, the lowest gauge number corresponding to the largest size of 0.500 inches (12.7 mm), to 36, the highest gauge number corresponding to the smallest size of 0.004 inches (0.10 mm). The increments between gauge sizes are not linear and vary. [2]

4. Gauge - Wikipedia

   en.wikipedia.org/wiki/Gauge

   Birmingham gauge, a measure of ferrous wire and hypodermic needle diameter; Jewelry wire gauge, the size of wire used in jewelry making; Sheet metal gauge, thickness of metal in sheet form; Film gauge, a physical property of film stock which defines its size; The size of objects used in stretching (body piercing), especially earrings

5. Bending (metalworking) - Wikipedia

   en.wikipedia.org/wiki/Bending_(metalworking)

   In bottoming, the sheet is forced against the V opening in the bottom tool. U-shaped openings cannot be used. Space is left between the sheet and the bottom of the V opening. The optimum width of the V opening is 6 T (T stands for material thickness) for sheets about 3 mm thick, up to about 12 T for 12 mm thick sheets.

6. Cold-formed steel - Wikipedia

   en.wikipedia.org/wiki/Cold-formed_steel

   The minimum local elongation in a - 1/2 in. (12.7-mm) gauge length of a standard tension coupon including the neck be at least 20%. The minimum uniform elongation in a 3-in. (76.2-mm) gauge length minus the elongation in a 1-in. (25.4-mm) gage length containing neck and fracture be at least 3%.

7. List of track gauges - Wikipedia

   en.wikipedia.org/wiki/List_of_track_gauges

   Railway built by minimum gauge pioneer Sir Arthur Heywood, later abandoned in favor of 15 in (381 mm) gauge. 240 mm 9 + 7 ⁄ 16 in: See 9 + 7 ⁄ 16 in (240 mm) gauge ridable miniature railways: 241 mm 9 + 1 ⁄ 2 in: See 9 + 1 ⁄ 2 in (241 mm) gauge ridable miniature railways: 260 mm 10 + 1 ⁄ 4 in: See 10 + 1 ⁄ 4 in (260 mm) gauge ...