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Old 01-26-2004, 03:52 PM   #1 (permalink)
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Tubing Strength Chart and weight per foot

This is a simple guide that shows strengths of different tube. Though I doubt the prices are correct.



Tube Costs per Tube Service
Based on 20 foot length purchases.

Chrome-Moly Tensile Stength = 90,000 psi
Diameter (in) Thickness (in) ID (in) Cross Sect. Area (in^2) Tensile Strength (lbs) Cost ($/ft) Weight (lb/ft)
1.75 0.120 1.51 0.61 55,303 $6.63 2.089 lb
1.75 0.095 1.56 0.49 44,453 $6.59 1.679 lb
1.75 0.083 1.58 0.43 39,119 $8.17 1.478 lb
1.50 0.120 1.26 0.52 46,821 $6.01 1.769 lb
1.50 0.095 1.31 0.42 37,738 $5.74 1.426 lb
1.50 0.083 1.33 0.37 33,253 $5.51 1.256 lb
1.25 0.120 1.01 0.43 38,339 $5.65 1.448 lb
1.25 0.095 1.06 0.34 31,023 $5.44 1.172 lb
1.25 0.083 1.08 0.30 27,386 $5.50 1.034 lb
1.00 0.120 0.76 0.33 29,857 $5.54 1.128 lb
1.00 0.095 0.81 0.27 24,308 $5.42 .9182 lb
1.00 0.083 0.83 0.24 21,519 $5.39 .8129 lb
1.00 0.065 0.87 0.19 17,183 $4.98 .6491 lb

DOM Tensile Stength = 70,000 psi
Diameter (in) Thickness (in) ID (in) Cross Sect. Area (in^2) Tensile Strength (lbs) Cost ($/ft) Weight (lb/ft)
1.75 0.125 1.50 0.64 44,668 $5.54 2.169 lb
1.75 0.095 1.56 0.49 34,575 $5.36 1.596 lb
1.75 0.083 1.58 0.43 30,426 $5.23 1.478 lb
1.50 0.120 1.26 0.52 36,416 $5.18 1.769 lb
1.50 0.095 1.31 0.42 29,352 $5.92 1.426 lb
1.50 0.083 1.33 0.37 25,863 $5.61 1.256 lb
1.25 0.120 1.01 0.43 29,819 $5.28 1.448 lb
1.25 0.095 1.06 0.34 24,129 $5.00 1.172 lb
1.25 0.083 1.08 0.30 21,300 $5.57 1.034 lb
1.00 0.120 0.76 0.33 23,222 $5.00 1.128 lb
1.00 0.095 0.81 0.27 18,906 $5.00 .9182 lb
1.00 0.083 0.83 0.24 16,737 $5.00 .8129 lb
1.00 0.065 0.87 0.19 13,365 $5.00 .6490 lb

HREW Tensile Stength = 40,000 psi
Diameter (in) Thickness (in) ID (in) Cross Sect. Area (in^2) Tensile Strength (lbs) Cost ($/ft) Weight (lb/ft)
1.75 0.120 1.51 0.61 24,579 $5.20 2.089 lb
1.75 0.095 1.56 0.49 19,757 $5.06 1.596 lb
1.75 0.083 1.58 0.43 17,386 $5.11 1.478 lb
1.50 0.120 1.26 0.52 20,809 $5.16 1.769 lb
1.50 0.095 1.31 0.42 16,772 $5.00 1.426 lb
1.50 0.083 1.33 0.37 14,779 $5.00 1.256 lb
1.25 0.120 1.01 0.43 17,039 $5.04 1.448 lb
1.25 0.095 1.06 0.34 13,788 $5.00 1.172 lb
1.25 0.083 1.08 0.30 12,172 $5.00 1.034 lb
1.00 0.120 0.76 0.33 13,270 $5.00 1.128 lb
1.00 0.095 0.81 0.27 10,804 $5.00 .9182 lb
1.00 0.083 0.83 0.24 9,564 $5.00 .8129 lb
1.00 0.065 0.87 0.19 7,637 $5.00 .6490 lb
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Old 01-26-2004, 04:08 PM   #2 (permalink)
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Where's the list for pipe? (which we all know can be safely used for cages)





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Old 01-26-2004, 04:13 PM   #3 (permalink)
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is this on a web site somewhere?
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Old 01-26-2004, 04:16 PM   #4 (permalink)
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why do those charts always seem to exclude 2"
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Old 01-26-2004, 08:48 PM   #5 (permalink)
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$5 somthing per foot of dom???damn man I pay $1.90 for 120 dom and live in BFE
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Old 01-26-2004, 10:28 PM   #6 (permalink)
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does the moly specs mean the tubing is DOM moly or what?
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Old 01-26-2004, 10:29 PM   #7 (permalink)
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Why is the weight on the 1.75 x .095 chromo more than the DOM or HREW?
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Old 01-26-2004, 10:36 PM   #8 (permalink)
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its more dense
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Old 01-26-2004, 10:37 PM   #9 (permalink)
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Quote:
Originally posted by Moab Austin
its more dense
or maybe its just me
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Old 01-26-2004, 11:08 PM   #10 (permalink)
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Quote:
Originally posted by RedBullJeep
Why is the weight on the 1.75 x .095 chromo more than the DOM or HREW?
That is virtually always the case- you must be able to go to a smaller wall thickness & have the strength you need to be able to save weight! It's funny to me but people ALWAYS think cromo is lighter. Definately not true-its all about design.

As for the charts- if you pay that much for steel your in a big way.
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Old 01-26-2004, 11:18 PM   #11 (permalink)
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Quote:
Originally posted by jstandle
Where's the list for pipe? (which we all know can be safely used for cages)





Actually this is a good question. I for one would like to know.



And is DOM really that much stronger than HREW? Does anybody have real world experience, or is that just in the lab? I thought it was just marginally stronger, but nearly double?

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Old 01-27-2004, 06:48 AM   #12 (permalink)
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TYPICAL Mechanical properties from EMJ tech resource books. SOME can also be found in Ryerson stock list

Name, tensile, yield, elongation
CREW tube, 55,40,20 (cold drawn butt weld tube)
DOM tube, 80, 70, 15 (CREW, then drawn over mandrel)
CDS pipe, 60, 35, 30 (cold drawn pressure pipe sch40,)
ROPS, 70, 50, 20 (roll over protection square structural, what they use on tractors, fork trucks)

What other type of tube or pipe do you want to see specs on.
I don't know the astm designation for normal sch40 pipe.


I went and saw Scott@rockstomper a while ago, He said that DOM requires more hydraulic pressure in his bender compaired to CREW/HREW.
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Old 01-27-2004, 07:49 AM   #13 (permalink)
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Quote:
Originally posted by thomjpster
I went and saw Scott@rockstomper a while ago, He said that DOM requires more hydraulic pressure in his bender compaired to CREW/HREW.
I don't know about hydro benders but you can definately tell the difference when your manualy bending it.
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Old 01-29-2004, 09:17 AM   #14 (permalink)
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I was just looking over the Material Test Reports from a bunch of different DOM we got here at work. Dom can vary ALOT, DOM is usually 1020 or 1026 and unless you specify, you will get either. Some of the 1020 on the low end of the carbon content, about .17% is about 75 ksi Sy and 82.5 ksi Su. On the other end, a typical 1026 with .25% carbon is 89 ksi Sy and 105 ksi Su. Su is the ultimate tensile strength, and Sy is yield strength.

The range of alloy content of 4130 aircraft tubing is usually alot smaller so the material properties are more consistent. Comparing 2 different mill runs of 4130 N seamless yields 110 ksi Sy, 122 ksi Su and another is 98 ksi Sy, and 131 ksi Su

Tubing supplier cataloges and other reference materials are on the low side, and in most cases actual material is significantly higher.
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Old 01-29-2004, 10:05 AM   #15 (permalink)
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Quote:
Originally posted by Moab Austin
$5 somthing per foot of dom???damn man I pay $1.90 for 120 dom and live in BFE
Shiat.... I just bought some 1.5" x .120" this week. HREW, paid 3 bucks a foot!
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Old 08-16-2009, 07:20 AM   #16 (permalink)
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Is HREW considered "1018"?

Do I win something for pulling up a 5 year old thread?
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Old 08-16-2009, 12:43 PM   #17 (permalink)
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Do I win something for pulling up a 5 year old thread?
only 'the god of suspension' thread gets a prize
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