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  1. EAllard

    Rust. Is steel quality getting poorer ?

    Hello everybody, 1) I am sorry I have been away from this thread for so long and left you hanging with my "teaser". Here is the answer to the question you have been waiting for... Sample A is the "old" material. The one that shows much better resistance to corrosion. Sample B is the "new"...
  2. EAllard

    Rust. Is steel quality getting poorer ?

    Hello everybody, 1) Many of you suggested I get an analysis of both the old material and the new to highlight any potential differences. 2) I followed this advice and I got the results. SAMPLE A: Carbon = 0.10% Manganese = 0.51% Silicon = <0.01% Phosphorus = 0.008% Sulphur = 0.011% Chrominium...
  3. EAllard

    Rust. Is steel quality getting poorer ?

    Thanks again everybody, 1) Like I said earlier, I am overwhelmed by the number and the quality of the replies I revceived for my post. For this reason, it will be impossible for me to answer specifically to all the questions I received. Nevertheless, I see a lot of commonalities between some...
  4. EAllard

    Rust. Is steel quality getting poorer ?

    Hello everybody, 1) Wow, I am overwhelmed by how many and how good a response I am getting for my post. 2) I am sorry I have not provided answers to your questions at this point. I have been working on other projects away from my computer. 3) keep the good stuff coming, I should be able to...
  5. EAllard

    Rust. Is steel quality getting poorer ?

    Hello, 1) As it is often the case, I am new to this "Eng-tips" forum because I have a question nobody will give me a straight answer to. Hope you guys will help. 2) To make a long story short... I am working for a conveyor manufacturer. To fabricate our conveyor rollers, we have been using...

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