Stainless Steel Grades

Grade 303 - Easy to machine - round bar only.

Grade 304 - General fabrication grade - suitable for welding.
Most applications including: kitchens / gardens / vehicles / fresh water tanks etc.

Grade 316 - Marine grade - suitable for welding - more expensive.
Exterior marine fittings / contact with salt water / acids.

Sheet Metal Gauge Conversion

Imperial Gauge......Imperial in mm.....Metric Sheet mm
........10.........................3.25.......................3.0
........12.........................2.64.......................2.5
........14.........................2.03.......................2.0
........16.........................1.63.......................1.5
........18.........................1.22.......................1.2........
........20.........................0.91.......................0.9
........22.........................0.71.......................0.7
........24.........................0.56.......................0.6
........26.........................0.46.......................0.5

Metric / Imperial Conversion

.......Inch.................Inch Fraction...............MM

.......1/16....................0.0625...................1.5875
.......1/8.......................0.125....................3.175
.......3/16.....................0.1875..................4.7625
.......¼.........................0.25......................6.35
.......5/16.....................0.3125..................7.9375
.......3/8.......................0.375....................9.525
.......7/16.................... 0.4375................11.1125
.......½.........................0.5......................12.7
.......9/16.....................0.5625................14.2875
.......5/8.......................0.625..................15.875
.......11/16...................0.6875................17.4625
.......¾.........................0.75....................19.05
.......13/16...................0.8125.................20.6375
.......7/8.......................0.875...................22.225
.......15/16...................0.9375.................23.8125
.......1..........................1..........................25.4
.......1 1/16..................1.0625.................26.9875
.......1 1/8....................1.125...................28.575
.......1 3/16..................1.1875.................30.1625
.......1 ¼......................1.25.....................31.75
.......1 5/16..................1.3125.................33.3375
.......1 3/8....................1.375...................34.925
.......1 7/16..................1.4375.................36.5125
.......1 ½......................1.5.......................38.1
.......1 9/16................. 1.5625.................39.6875
.......1 5/8....................1.625...................41.275
.......1 11/16................1.6875.................42.8625
.......1 ¾......................1.75.....................44.45
.......1 13/16................1.8125.................46.0375
.......1 7/8....................1.875...................47.625
.......1 15/16................1.9375.................49.2125
.......2............ .............2..........................50.8
.......2 ¼......................2.25.....................57.15
.......2 ½......................2.5.......................63.5
.......2 ¾......................2.75.....................69.85
.......3..........................3..........................76.2
.......3 ¼.....................3.25......................82.55
.......3 ½......................3.5.......................88.9
.......3 ¾......................3.75.....................95.25
.......4 .......... ..............4..........................101.6
.......5......... ................5..........................127
.......6......... ................6..........................152.4