There's a conversion table at this website which will tell you. http://www.mesteel.com/info/carbon/thickness.htm
18 swg is 1.22 mm thick
GAUGE , is one inch thick of steel or metal. So, take this one inch thick of steel sheet and cut it into 12 equal thickness sheets , you get a 12 gauge steel sheet. Similarly, take this one inch thick of steel sheet and cut it into 14 equal thickness sheets , you get a 14 gauge steel sheet. and so on . So, a 12 gauge steel sheet is thicker than 14 gauge , 14 is thicker than 16 , 16 is thicker than 18 and so on. Wrong!!! See my discussion on this...
18 gauge is thicker than 20 gauge. 18 gauge is 1.27 mm thick while 20 gauge is .953 mm thick.
The lower the gauge the heavier, sheet metal, wire & shotguns...
I believe it's typically rounded to .049" thick wall. Vendor sites like centralsteel.com are a good resource.
Depends on what you are using if for.
No. The larger the number, the thinner the steel. 16 gauge is the thicker of the two.
Depends on what kind of steel: 18 Gauge Standard Steel is .0478 Inches. 18 Gauge Galvanized Steel is: 0.0516 inches thick. FYI 18 Gauge Aluminum is 0.0403 18 gage steel is 0.0478 inches thick 18 gage steel is 0.0478 inches thick
GAUGE , is one inch thick of steel or metal. So, take this one inch thick of steel sheet and cut it into 12 equal thickness sheets , you get a 12 gauge steel sheet. Similarly, take this one inch thick of steel sheet and cut it into 14 equal thickness sheets , you get a 14 gauge steel sheet. and so on . So, a 12 gauge steel sheet is thicker than 14 gauge , 14 is thicker than 16 , 16 is thicker than 18 and so on. Wrong!!! See my discussion on this...
18 gauge is thicker than 20 gauge. 18 gauge is 1.27 mm thick while 20 gauge is .953 mm thick.
18 gauge stainless steel is 0.0500 inches thick.
1.27 mm
.0500 inches.
The lower the gauge the heavier, sheet metal, wire & shotguns...
The difference between 18 gauge and 22 gauge stainless steel is the thickness. The 18 gauge is 0.050" thick, and the 22 gauge is 0.031" thick. A link is provided below to an article with a list of the conversions. You'll note that the cited thickness for the gauges of stainless do not apply to galvanized steel, aluminum, zinc, brass or other metals.
.0500 inches or 1.27 mm
STANDARD STEEL .9119 MM. GALV.STEEL 1.0058
18 to 20 gauge high strength steel on modern cars and 16 gauge on older cars.