Metal Thickness Conversion Chart

Metal Thickness Conversion Chart
Conversion Factors for Deck Products In the following chart: m = meters; mm = millimeters; kilograms = kg; grams = g; pascals = Pa; newtons = N; newton meters = Nm; kilopascals = kPa; megapascals = MPa

For deck calculations three significant figures are sufficient.Do not use this table if more precision is required.

TO NOTESSTEEL THICKNESS CONVERSION TYPE (GAGE) DESIGN THICKNESS INCHES DESIGN THICKNESS (mm) 28 0.0149 0.38

26 0.0179 0.45

24 0.0239 0.61

22 0.0295 0.75

20 0.0358 0.91

18 0.0474 1.20

16 0.0598 1.52

14 0.0747 1.90

12 0.1046 2.66

10 0.1345 3.42 STEEL PROPERTIES ASTM NUMBER

CUSTOMARY UNITS (ksi)

SI UNITS (MPa)

F F*

F
F
F* A1008 Grade 33 33 48 20 230 330 140

A1008 Grade 40 40 52 24 275 360 165

A1008 Grade 50 50 65 30 340 410 205

A1008 Grade 80 80 82 36 550 565 250

A653 Grade 33 33 45 20 230 310 140

A653 Grade 40 40 55 24 275 380 165

A653 Grade 50 50 65 30 345 450 205

A653 Grade 80 80 82 36 550 570 250 *Design stress in bending.GALVANIZING DESIGNATIONS Customary Units* SI Units** Approximate Total Thickness***(in.) (mm.)
G30(0.3 oz.min.)
Z090(90 g min.)
0.0005
G60(0.6 oz.min.) Z180(180 g min.) 0.0010 0.026

G90(0.9 oz.min.) Z275(275 g min.) 0.0015 0.039 *

Total of both sides, ounces/ft
metal thickness conversion chart
Steel Pipe Thickness Conversion Table (gauge-inch-mm)
Power by www.tubesolution.com inch mm inch mm inch mm inch mm 6 .203 5.156 .2031 5.16 21 .032 .813 .0344 .873 7 .180 4.572 .1875 4.76 22 .028 .711 .0313 .794 (midwestsnips.com)
Sheet Metal Gauge Conversion Chart - Snips - Midwest Tool ...
Sheet Metal Gauge Conversion Chart For Common Metal Gauges 16 gauge 0.060” 1.52 mm 18 gauge 0.048” 1.22 mm 20 gauge 0.036” 0.91 mm (midwestsnips.com)
Foremost Machinery Corp.
Here’s a conversion chart that converts sheet metal gauge numbers into metal thickness. 26 gauge 24 ga. 22 ga. 20 ga . (midwestsnips.com)
.** Total of both sides, grams/m***Both sides EXAMPLE PROBLEM EXAMPLE: A 1 1/2 x 6(40 x 150 mm) 20 gage composite floor deck is to carry a 150 mm (totweight concrete (2320 kg/m).

The deck will be three spans with the clear distance between support beams of 1.5 meters.Find the deck deflection caused by the concrete mass.The I of the deck is 290 mm/mm.

The concrete required to fill the ribs of the deck is 0.0143 mThe equation for deflection is: deflection = y = 0.0069 wl/(EI).

Concrete mass = [0.0143 + 1(150-40)/1000]2320 = 288.4 kg/mDeck mass

=
7.8 Total

= 296.2 kg/m; 296.2 x 9.81 = w = 2910 Pascals Where 1 pascal = 1 newton per meterE = 210,000 megapascals; note mega means 10y = mm = pascals (mm)/[pascals x 10(mm= 0.0069 x 2910(1500)/210,000 x 10(290) = 1.67 mm

= 1.7 mm The important points of the example problem are: (1) Mass units must be changed to force units.

In the problem, kilograms per square meter were changed to newtons per square meter (pascals).(2) Units in the International System are always in powers of ten - simply substitute the appropriate power of ten for the prefix on the unit such as was done for "mega" (10).

A quick dimension check will show if the units are correct.
PREFIX SYMBOL

PREFIX SYMBOL exa

=

10
E milli

=

10 micro

=

10 tera

=

10
T nano

=

10 n

giga

=

10 G pico

=

10-12 p

mega

=

10 M femto

=

10-15 f

k atto

=

10-18 a.
Gauge guide
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