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Conversion Tables

Please note: Our minimum order quantity for all products is One Unit of Measure (see UOM field in the shop).  However, if you require a cut outside the UOM, we can cut your materials for you to any size  but you must add the cuts to your shopping cart.

The following list contains the common metric and other unit conversions that may be applicable for purposes of ordering sheet products.

1 inch = 25.4mm 1 Metre = 3.281 Feet 1 Kilo = 2.2046 Pounds 1 Foot = 12 Inches
1mm = 0.03937 inch 1 Foot = 0.3048 Metre 1 Pound = 0.4536 Kilo 1 Inch = 0.0833 Feet

 

Length

To Convert From

To

Multiply By

Inch

Millimetres

25.4

Foot

Metre

0.3048

Weight

Ounce

Grams

28.3495

Pound

Grams

453.59

Pound

Kilograms

0.4536

Ton

Metric Ton

0.9070

Metric Ton

Kilogram

1000

Metric Ton

Pound

2205

Coating Weight

Ounce per Square Foot

Grams Per Square Foot

305.15

Density

Pound per Cubic Inch

Grams per Cubic Metre

27.68

Strength

Pound per Square Inch (PSI)

KSI (1000 PSI)

0.001

KSI

Megapascal (MPa)

6.895

Pound per Square Inch (PSI)

Megapascal (MPa)

0.006895

Newton per Square Millimetre (N/mm2)

Megapascal (MPa)

1

Pound per Square Inch (PSI)

Newton per Square Millimetre (N/mm2)

0.006895

KSI

Newton per Square Millimetre (N/mm2)

6.895

KSI

Kilogram per Square Millimetre (kg/mm2)

0.704

Weight Calculations of Steel Products

Round Bar Diameter x Diameter x 0.1007 = Kilos per Inch
Rectangular or Square Bar Width x Height x 0.12823 = Kilos per Inch
Sheet or Plate Width x Length x Thickness x 0.12823 = Kilos per Sheet/Plate
Tubing Outside Diameter - Wall Thickness x Wall Thickness x 10.68142 = Pounds Per Foot
Aluminium Multiply the steel weight by 0.3562
Titanium Multiply the steel weight by 0.560

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SWG to Inches to Millimetres

Standard Wire Guage Inches Millimetres
1 0.300 7.620
2 0.276 7.010
3 0.252 6.401
4 0.232 5.893
5 0.212 5.385
6 0.192 4.877
7 0.176 4.470
8 0.160 4.046
9 0.144 3.658
10 0.128 3.251
11 0.116 2.946
12 0.104 2.642
13 0.092 2.337
14 0.080 2.032
15 0.072 1.829
16 0.064 1.626
17 0.056 1.422
18 0.048 1.219
19 0.040 1.016
20 0.036 0.914
21 0.032 0.813
22 0.028 0.711
23 0.024 0.610
24 0.022 0.559
25 0.020 0.508
26 0.018 0.457
27 0.0164 0.417
28 0.0148 0.376
29 0.0136 0.345
30 0.0124 0.315

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Common Fractions to Decimal

1/8

0.125
3/16 0.188
1/4 0.25
5/16 0.313
3/8 0.375
7/16 0.438
1/2 0.5
9/16 0.563
5/8 0.625
11/16 0.688
3/4 0.75
13/16 0.813
7/8 0.875
15/16 0.938
1 1

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Common Gauges

Gauge Birmingham Wire Gauge American Wire Gauge
22 swg 0.028" 0.025"
20 swg 0.035" 0.032"
18 swg 0.049" 0.050"
17 swg 0.058"
16 swg 0.065" 0.063"
14 swg 0.083" 0.080"
12 swg 0.095" 0.100"
10 swg 0.120" 0.125"
8 swg 0.156" 0.160"
6 swg 0.188" 0.190"

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Alternative Specifications to Consider Using

British Specifications

American Alternatives
2014 2024
7010 7075
6082 6061
T45 4130
S92 4130
S515 4130
CDS2 4130
CFS3 4130
25CD4 4130

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