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Originally Posted by B-rock
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Thank you for the article, I did contact millennium technologies and US chrome. However neither of the businesses were recommending aluminums other than the 6061 because of its ability to adhere with the Nikisil coating. Although millennium technologies did state 4032 would be a very good aluminum for me to choose to have cylinders made from. 4032 is very hard to come by, especially in a 6 inch diameter size. I believe there's only one other person making aluminum cylinders having Nikisil coating, and that is Charles Navarro of LN. The Ottinger cylinders having been Nikisil coated were great, but pricey. So no doubt Charles is not going to say what type of aluminum alloys he has chosen. And I just don't want to spend $2300 for four cylinders and a total of $3200 in total for piston and cylinders, let's face it I am cheap
I believe I need a lot more for that amount of money. So US chrome and millennium technologies can chrome the cylinders. But not any of the 700 series in 2000 series aluminum. I believe that both companies feel that to make a recommendation of aluminums to use, it may could become a liability issue; although they both said 6061 was quite treatable. So I guess that's enough from this thread, thank you everyone.