Grapple Different types of grapple steel?

[BlueToy1]

I'm shopping around for a grapple and have received quotes on 2. One is made of A514 Alloy Steel and the other is AR400 steel. Can anyone tell me the differences between these?

Thanks
Brian

 

[hazmat]

A514 is a structural steel 100,000psi yield strength, 18% elongation

AR400 is a wear resistant steel 140,000psi yield strength, 14% elongation - but not intended for structural use.

The AR400 will stand up better to scraping along rocks etc. The A514 will stand up better to high loads (beating on it)

For a compact tractor application, I wouldn't really worry one way or the other. I'd get the geometry that works for your uses. Some grapples are better shaped for tree work vs. brush vs. rocks. vs demolition...

My dad has the anbo manufacturing grapple on his TC40 - works great for brush & tree work, plus you can open it & curl to use as a "rake".

Reference

chapel steel

 

[hazmat]

Here's a pic

 

[BlueToy1]

Thanks for the help Hazmat. The Anbo is one I'm looking at for my TC40. What width did you go with?

 

[CT_Tree_Guy]

Hazmat, where does "T-1" steel fit into that picture? That's what my rear (Implemax) grapple is made of.

Thanks, John D.

 

[MadReferee]

</font><font color="blue" class="small">( Hazmat, where does "T-1" steel fit into that picture? That's what my rear (Implemax) grapple is made of. )</font>

Just check that link that Hazmat posted. It gives the Brinell hardness and usage description for each type of steel.

According to the link, the T1, depending on grade, has a hardness of 321 or 360 while the A514 is 235-293 and the AR400 is 360 minimum. I am sure there are reasons to go with the harder AR400 over the T1 and they are probably impact related.

 

[hazmat]

I'm pretty sure it is the 66" Light duty model. 66" was big enough to cover the tracks, but we figured smaller was better to avoid "racking" the loader arms. There is a much better chance of un-evenly loading a grapple than the bucket.

Anbo recommended the light duty version so as not to decrease the lifting capacity. I think their heavy duty models are for larger skid steers (with much higher lift capacities). Doesn't really "look" to be light duty - I think the difference is the thickness of the tines.

 

[CT_Tree_Guy]

<font color="blue"> Where does "T-1" steel fit into that picture? </font>

<font color="blue"> A514 is a structural steel 100,000psi yield strength, 18% elongation </font>

<font color="blue"> AR400 is a wear resistant steel 140,000psi yield strength, 14% elongation </font>

T-1 360 : wear and impact resistant steel 130-140,000psi yield strength, 15% elongation

Not too shabby I guess.