"Chrome hydraulic cylinder rods?

[wdchyd]

Very interesting post! I'm wondering about the difference in core strength between the nitrided and hard chrome rods and why the nitrided rods would tend to snap instead of bend. Perhaps some hydrogen embrittlement in the nitriding process?

I see Brendon Casey talked about it

Hydraulic cylinder rods turn black

content article about black nitride hydraulic cylinder rods

www.hydraulicsupermarket.com

 

[npalen]

I see Brendon Casey talked about it

Hydraulic cylinder rods turn black

content article about black nitride hydraulic cylinder rods

www.hydraulicsupermarket.com

But I'm wondering why a nitrided rod would have more tendency to break? Its as if the nitriding process creates microscopic stress risers in the rod surface. I am still, however, wondering about hydrogen embrittlement of the rod surface which is what some plating operations produce.

 

[4570Man]

JD only uses the black rods on the light duty tractors. None of the industrial machines from Deere or other manufacturers use them. That should tell you something.

 

[wdchyd]

JD only uses the black rods on the light duty tractors. None of the industrial machines from Deere or other manufacturers use them. That should tell you something.

I’m seeing more newer plow equipment and a few refuse trucks using nitrited rods.

 

[wdchyd]

Three more this week.

 

[wdchyd]

…….

 

[Alan W.]

…….

That is really bad. Get what you pay for.
Must be quite a bit cheaper than chrome for the manufacturer to fool with it.
Years ago I worked in a hydraulic shop as a weldor and also did rebuilds.
The majority of our work was from the coal mines.

 

[kennyd]

I knew this would turn into a JD bashing thread

 

[wdchyd]

Lol……I’m not trying to bash JD, just OEM’s using cheap alternatives to increase their bottom line.
Yes, the nitriding is more eviro friendly during the manufacturing process, but so is using equipment that has a longer life expectancy instead of replacing early.
My Dad used to work for Buick Motor Div, one of his famous quotes was…..”Buick doesn’t make money on old cars, They make money on new cars, they only want it to make it through the warranty”.

 

[plastikosmd]

Not sure how “cheap” it is

My black rods have been way overloaded and left in weather without issue. Still look like new


I have only rusting chrome rods and have only had to repair broken chrome rods on my equipment

I doubt it matters much