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View Full Version : chain...18/18, 48/4...whats it mean?



ben b
04-11-2009, 11:42 AM
looking at curb chains, they are described as 18/18 or 48/4 or 62/3...can u explain what this means..is it useful in designing pieces, such as tightness of knit etc?

Rustic Charm
04-11-2009, 04:06 PM
i want to know too! i know i've read it once so just spent the last hour going through my books but nooooooooo i can't find it!!!! :-(

dgrose
05-11-2009, 06:32 AM
Hi,
The first number represents the diameter of the wire, the second number is the number of links to the inch.
So 18/18 is made from 0.018" diameter wire and there are 18 links per inch.
Hope this helps.
Dave

snow_imp
05-11-2009, 07:17 AM
Thanks for the information - I've wondered about that too. :)

MuranoSilver
05-11-2009, 07:25 AM
Oh my goodness that IS useful information, it will make it much
easier for me to buy chain in future..Thanks!
nic x

bustagasket
05-11-2009, 07:48 AM
Hi,
The first number represents the diameter of the wire, the second number is the number of links to the inch.
So 18/18 is made from 0.018" diameter wire and there are 18 links per inch.
Hope this helps.
Dave

Oh wow Dave, you might not speak often but when you do you have us all clamouring for our notebooks! Thanks for that :D

AlexandraBuckle
05-11-2009, 07:53 AM
Ooh very helpful info, always wondered this myself!

mizgeorge
05-11-2009, 08:02 AM
Thank you! I knew the second one, but had been trying to turn the first into some sort of gauge, not a fractional inch measurement! That's going to save a lot of mistakes :)

ben b
05-11-2009, 08:55 AM
As a handy guide, here's a list of what those numbers mean in mm wire size:

cooksons number, then its approx MM Eqivelent.

24 = 0.6mm wire
28 = 0.7mm wire
33 = 0.8mm wire
40 = 1.0mm wire
48 = 1.2mm wire
62 = 1.5mm wire
72 = 1.8mm wire
85 = 2.1mm wire


DID U KNOW.....'google' has an automatic calculator?
You can type common expressions into the google search box and it calculates the answer! (eg. type in "2mm in inches" and hit enter)

(see the google 'more' button, or help pages for other 'expressions' and short cut expressions/symbols allowed for this to function)

lesley
05-11-2009, 09:45 AM
Aaaah! I knew the second was links per inch but I thought the first was to do with the length of the individual links. Never seemed to make much sense so thanks for the enlightenment. :)