x-no-archive:yes Glenn Ashmore wrote:
If you get an od ball metric chain wheel you will have a problem but
American chain dimensions and minimum working loads are pretty well
standardized by DOT and OSHA. Grade 28 and 30 come in two patterns,
Proof coil and BBB. Grade 40 (formerly 43) is High test. Grade 70 is
transport chain. Grades 40 and 70 all have exactly the same dimensions
regardless of make. The difference is that Grade 70 is heat treated.
Heat treating makes it stronger but more subject to corosion.
Grades 63, 80 and 100 are lifting chains and are different sizes from
HT. They will not fit most windlasses.
You can buy ACCO 3/8" High test from West for $5.55/foot or Campbell
3/8" Grade 40 from an industrial supplier for $2.00/ft but you will get
exactly the same thing.
I think the idea is that lifting chain which is cheaper will not be
the same as transport or windlass chain. And people who don't know
the difference might think that lifting chain was OK to use, not
knowing that difference between that and HT. Even a cheaper chain if
you buy a lot of it will be a considerable investment.
We could have picked up the ACCO chain direct from the distributer for
cheaper, but then we'd have had to transport it (we got something like
half barrel or 3/4 barrel) and that stuff is really heavy - too heavy
for a car.
Steve wrote:
Be careful of using industrial chain if you are going to buy a anchor
windlass in the future. Most anchor winch manufactures size their chain
wheels to ISO standards for chain. A lot of times an industrial supplier
will sell chain that is sized using ISO for the wire size and the dimensions
for the links are built to metric dimensions. The reason for the lower
price on this type of chain is their is less welds per foot.
If you are not going to buy an anchor windlass, you don't need to worry.
When you are buying a windlass from a dealer who also supplies the chain,
the fit of the chain to the windlass is usually guaranteed, if you supply
the chain from an industrial supply house, you are responsible for the fit.
--
Thanks,
O_salt
"Glenn Ashmore" wrote in message
...
As I have said before, Walk into West Moron and ask for 3/8 high test
anchor chain and pay $5/ft. Walk into an industrial supply house and
ask for hot dipped Grade 40 and pay $2 for the same thing.
DSK wrote:
Jeff Morris wrote:
Sounds a bit cheaper than West Marine - WM is $3.99 for the 5/16HT I
use, your place is
$1.19!
Yep. I thought for sure there must be a catch, but after closely
examining the chain from both
sources, the chain seems identical.
But am I missing something? I always thought a shot was 90 feet. Did
you really get 3600
feet of chain for $100?
Sorry, I was using "shot" informally & casually... I wonder if the NIST
has a shot-measure
standard, call 'em up and tell 'em we need to calibrate.....
Fresh Breezes- Doug King
--
Glenn Ashmore
I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com
grandma Rosalie