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For anyone using this thread as a search for nitride/nitreg/tufftride. interally have a great mechanical/chemical analysis if their materials and exaplain if they can be nitrided well or not. http://www.interlloy.com.au/our-products/hollow-bar/4140-high-tensile-steel-hollow-bar/...

Kennethhp superb! I have been researching the process for some time which got me to the point, however what you have just written is more valuable than any website i could find as they all are just spruking themselves. attached is an image of the part in question. as you can see one side is...

Good example :) thanks

Hi All, This is a pretty back to basics question for you but I've been delving into the world of Nitrex/Nitreg ONC Black / Tufftride QPQ. I have had some components (1045 steel) Tufftride & QPQ treated (in thailand). I'm a little worried my supplier has just black oxide applied to them though...

Thanks Swall and WKTaylor, Your questions are valid WKTaylor, but due to external influences i have to maintain my current course. But I will use this as a reference if an improvement is needed. Definitely not the way i would like to engineer, but sometimes its not my decision. Cheers

Thanks jgKRI, The old steal from peter to pay paul scenario. Many thanks

Thanks tbuelna, arunmrao and swall. The material our supplier has noted is ADC12, which i think is the 383. It is good to hear that the porosity might not be an issue for my application. However on another issue with the same parts i was intending on anodising them but a few test pieces i had...

Hi All, Apologies if this has been a topic previously covered. I have a product i am designing and of which a few parts will be Al Cast. I have a few other engineers here who have backgrounds in the processes however two gentlemen who are both from credible backgrounds have conflicting...

Fantastic, I will look into it. Thank you very much. :D

thanks TVP, its a 50mm OD 44mmID tube, so relatively thin wall. My suppliers of hard chrome say the high temperatures involved will warp the tube... not having any previous experience in this situation i don't exactly disagree, yet it is good to get more than one opinion.

essentially it runs on two Teflon dry universal bearings, the system runs much like a hydraulic ram. the guide which holds the bearings is 6061 AL with an oring and scraper .

Hi All, I have been looking into how we can drop the costs on a component we need at work. Basically its a mild steel tube with hard chrome plating on the OD as it is a sealed and bearing surface. I got a little excited about the potential of Nitride (ONC black) but have since found out it is...