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2. List of gauge conversions - Wikipedia

   en.wikipedia.org/wiki/List_of_gauge_conversions

   In Western Australia, the narrow-gauge iron ore railways serving Geraldton port and the new port at Oakajee will be designed for ease of conversion to standard gauge. [5] [needs update] 1,435 mm (4 ft 8 + 1 ⁄ 2 in) 1,600 mm (5 ft 3 in) 2016–present Australia Victoria

3. Sound transmission class - Wikipedia

   en.wikipedia.org/wiki/Sound_transmission_class

   When heavy gauge steel or wood studs are spaced 16 inches (410 mm) on center, additional resonances form which further lower the sound isolation performance of a partition. For typical gypsum stud walls, this resonance occurs in the 100–160 Hz region and is thought to be a hybrid of the mass-air-mass resonance and a bending mode resonance ...

4. Steel grades - Wikipedia

   en.wikipedia.org/wiki/Steel_grades

   Steel grades to classify various steels by their ... So S355 has a minimum yield strength of 355 MPa for the smallest thickness range covered by the relevant standard ...

5. Rolled homogeneous armour - Wikipedia

   en.wikipedia.org/wiki/Rolled_homogeneous_armour

   RHA is homogeneous because its structure and composition are uniform throughout its thickness. The opposite of homogeneous steel plate is cemented or face-hardened steel plate, where the face of the steel is composed differently from the substrate. The face of the steel, which starts as an RHA plate, is hardened by a heat-treatment process.

6. Gauge (firearms) - Wikipedia

   en.wikipedia.org/wiki/Gauge_(firearms)

   The six most common shotgun gauges, in descending order of size, are the 10 gauge, 12 gauge, 16 gauge, 20 gauge, 28 gauge, and .410 bore. [7] By far the most popular is the 12 gauge, [7] particularly in the United States. [8] The 20-gauge shotgun is the next most popular size [citation needed], and is popular for upland game hunting. The next ...

7. Nominal Pipe Size - Wikipedia

   en.wikipedia.org/wiki/Nominal_Pipe_Size

   Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...

8. Roll forming - Wikipedia

   en.wikipedia.org/wiki/Roll_forming

   These specialized mills are prevalent in the light gauge framing industry where metal studs and tracks of standardized profiles and thicknesses are used. For example, a single mill may be able to produce metal studs of different web (e.g. 3-5/8" to 14 inches), flange (e.g. 1-3/8" to 2-1/2") and lip (e.g. 3/8" to 5/8") dimensions, from different ...

9. Talk:Sheet metal - Wikipedia

   en.wikipedia.org/wiki/Talk:Sheet_metal

   The gauge section didn't explain 'gauge' entirely. Seconded - having read this : . . . "The weight of steel per square foot per inch of thickness is 41.82 lb (18.96 kg), this is known as the Manufacturers' Standard Gage for Sheet Steel" I still have no idea what Gauge actually means. How could I use that to work out what thickness 18 gauge is.