What material would you make a draglink?

[JDNobodi]

Well obviously it would have to be DOM tubing, but what grade of material should I get. There is more than one grade of material, right?

 

[rdn2blazer]

Well obviously it would have to be DOM tubing, but what grade of material should I get. There is more than one grade of material, right?

yes, 1026 is the best to use.

 

[JDNobodi]

yes, 1026 is the best to use.

Thanks.

 

[original balzer]

copper tube would be a bad choice

 

[JDNobodi]

copper tube would be a bad choice

...
?
I keep that in mind.

 

[BGKYK5]

yes, 1026 is the best to use.

I am not questioning you, just curious, why is 1026 the best grade of mild steel for a draglink?

 

[sandawgk5]

Dont use conduit either. Look up the properties of 1018 and 1026 and compare for yourself.

Dik

 

[original balzer]

Agreed why is it better? Is there a chart that shows differnt grades of steel by their strenth? Can anyone break down what the numbers mean? I dont realy understand the grades of steel the only one I can really think of 440 stainless and that seams to be the most often used grade of stainless.

 

[BGKYK5]

I know all of the 1000 series is mild steel. 1026 would be 0.26% carbon, 1018 would be 0.18% carbon.

Other grade info here.

Mild steel specs here.

 

[BGKYK5]

Quick Comparo

1018
Elastic Modulus (GPa) (Stiffness) 190-210
Tensile Strength (Mpa) 634
Yield Strength (Mpa) 386

1026
Elastic Modulus (GPa) (Stiffness) 190-210
Tensile Strength (Mpa) 490
Yield Strength (Mpa) 415

I am assuming you want 1026 for the higher yield strength. Ultimate Tensile Strength is pretty meaningless in a draglink application.

Edit: I think I just answered my own question.

Edit: Edit: A new question, are 1018 and 1026 the only commonly available, usefull (to us), grades of DOM???

 

[sandawgk5]

Quick Comparo

1018
Elastic Modulus (GPa) (Stiffness) 190-210
Tensile Strength (Mpa) 634
Yield Strength (Mpa) 386

1026
Elastic Modulus (GPa) (Stiffness) 190-210
Tensile Strength (Mpa) 490
Yield Strength (Mpa) 415

I am assuming you want 1026 for the higher yield strength. Ultimate Tensile Strength is pretty meaningless in a draglink application.

Edit: I think I just answered my own question.

Ding Ding Ding

Dik

 

[sandawgk5]

If I can afford it when I make mine I am gonna use 4130 or 4340 Chrome Molly

Dik