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deseraligears
04-04-2009, 12:01 PM
have a request for rate to load 10000 cbm of pipe 20 feet long 36 inches or 3 feet in diameter.

now is the calculation length time diameter times diameter ?

and than convert?

I am trying to find the weight but do not know the wall thickness I would assume I am out of luck but did read that 0.2836 pounds is an average of weight per cubic inch of steel. Thanks John in advance

JohnS
04-04-2009, 01:12 PM
have a request for rate to load 10000 cbm of pipe 20 feet long 36 inches or 3 feet in diameter.

now is the calculation length time diameter times diameter ?

and than convert?

I am trying to find the weight but do not know the wall thickness I would assume I am out of luck but did read that 0.2836 pounds is an average of weight per cubic inch of steel. Thanks John in advance

For one piece of pipe, that would be correct for chargable volume. For multiple pieces they may be strapped together, achieve some packaging efficiency, and volume is charged based on overall outside dimensions of bundle.

For weight, you need to know number of pieces, and either the wall thickness or the inside diameter. Your figure for the weight of a cubic inch is good.

deseraligears
04-06-2009, 07:14 AM
I am told now that pipe is 1.9 metric tons 5.1 cbm!

Is there a way to back into the weight knowing that it is 6 meters long and 36"

OD ?

JohnS
04-06-2009, 08:50 AM
I am told now that pipe is 1.9 metric tons 5.1 cbm!

Is there a way to back into the weight knowing that it is 6 meters long and 36"

OD ?

So it is only a single piece? You still need the inside diameter or wall thickness.

OD = ID +2*t, where t is wall thickness. You need two of the three.

L can be either the length of one pipe, or total length of all the pieces, rho is the density

weight = rho * (pi/4) * L * (OD² - ID²)

with some manipulation, this can also be written as

weight = rho * pi * L * t * (OD - t)
which is more convenient for thin wall pipe.

deseraligears
04-06-2009, 02:28 PM
don't have it

deseraligears
04-06-2009, 02:33 PM
Sorry also its 10000 cbm total or 1960 pcs @ 5.1 cbm each now if the industry avg, is .2833 lbs per sq inch steel pipe can you not convert?
pipe in meters 6 m x 914.4mm od

JohnS
04-06-2009, 02:58 PM
Sorry also its 10000 cbm total or 1960 pcs @ 5.1 cbm each now if the industry avg, is .2833 lbs per sq inch steel pipe can you not convert?
pipe in meters 6 m x 914.4mm od

If it were solid rod, I could. But it is pipe, most of the inner space is air, and I can't. Of course, if you calculate it as solid rod, the weight charge will make them confess the wall thickness pretty quick.

Ignoring the airspace in the pipe, ie pretending it is solid rod,
7.9 t/m³ x (pi/4)*(0.9144 m)²* 6 m * 1960 pcs = 61009 t.

Now, about that wall thickness? With 1" wall thickness, it only be about 10% of that.

07-14-2009, 08:14 AM
I have a 360 x 9.5 metric size of pipe. What does that convert to in OD in inches and wall thickness. Why does a DOT spec in metric sizes anyway.

JohnS
07-14-2009, 08:51 AM
I have a 360 x 9.5 metric size of pipe. What does that convert to in OD in inches and wall thickness. Why does a DOT spec in metric sizes anyway.

The legal definition of an inch is 25.4 mm, so 14.173" x 0.374"

We are in reality a metric country but we hide the fact from the citizenry. There are NO primary standards for Imperial/Customary units. They are declared fractions of metric units, since 1893.

By law, the Federal government procures in metric, and Federal buildings are built in metric. (Executive Order 12770, President G. H. W. Bush) Exceptions require fairly high level approval (although NASA continually gets them and crashes)

Unregistered
07-24-2009, 09:10 AM
Ok I would like to know how you get the CBM's of Pipe. If possible someone could let me know the formula as well as how this amount breaks down would be great. Thank You

450 JTS of 3" 1/2... 9.30 pounds per foot…… =129,735.00-lbs

293 JTS of 2" 7/8...6.50 pounds per foot...=59,039.00-lbs

200 JTS of 4" 1/2.... 12.60 pounds per foot...=78,120.00-lbs

JohnS
07-24-2009, 11:46 AM
Ok I would like to know how you get the CBM's of Pipe. If possible someone could let me know the formula as well as how this amount breaks down would be great. Thank You

450 JTS of 3" 1/2... 9.30 pounds per foot…… =129,735.00-lbs

293 JTS of 2" 7/8...6.50 pounds per foot...=59,039.00-lbs

200 JTS of 4" 1/2.... 12.60 pounds per foot...=78,120.00-lbs

I'm sorry but I don't know what JTS is,

It will depend on how the multiple pieces of pipe are bundled. They will charge you based on the maximum rectangular dimensions of space occupied, length, width, height, not the volume of the pipe itself.

Unregistered
11-30-2011, 03:30 AM
1)PIPE from Shanghai/Guangzhou 7444mt

Details of the pipe are as hereunder:

Outside Diameter (mm)
1067

Thickness (mm)
14.3

Total Length (m)
20,860

Weight per meter (kg/m)
371.22

Pipe Length (m) (max)
12

Weight per pipe (Tons)
4.45

Total Weight (Tons)
7,444

Kindly advise me the CBM of this pipe cargo

JohnS
11-30-2011, 08:54 AM
1)PIPE from Shanghai/Guangzhou 7444mt

Details of the pipe are as hereunder:

Outside Diameter (mm)
1067

Thickness (mm)
14.3

Total Length (m)
20,860

Weight per meter (kg/m)
371.22

Pipe Length (m) (max)
12

Weight per pipe (Tons)
4.45

Total Weight (Tons)
7,444

Kindly advise me the CBM of this pipe cargo

CBM is computed based on "squared up" rectangular dimensions.
Worst case is 1.067 m x 1.067 m x 20860 m = 23749 m³

By hexagonal close packing and bundling, it may be possible to reduce this as much as 9% (theoretical target, cant be achieved with finite size bundle) so at least 21612 m³. You might achieve the midpoint.

Unregistered
09-02-2012, 06:33 AM
I am told now that pipe is 1.9 metric tons 5.1 cbm!

Is there a way to back into the weight knowing that it is 6 meters long and 36"

OD ?

thank you alot