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Thread: Chinesium steel

  1. #1
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    Default Chinesium steel

    Saw this on YouTube posted by a deep boring specialist
    https://m.youtube.com/watch?v=gEwmv2qWXv8

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    Here in the USA, we see virtually zero Chinese stainless. I use a fair amount of stainless. It comes from France, Russia, sometimes Korea, as well as the majority of it coming from the USA and Canada.
    I have been lucky enough to never have gotten any stainless, in about 30 years of using a couple tons or more a year, anywhere near that bad.

    In 2019, for example, we imported about ten times as much stainless from the
    EU (France, Germany, and Belgium, mostly) as from China.

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    I have gotten stainless exhaust tubing from China... what I think they meant to say was poorly chrome plated steel but either way what I got was not stainless steel.

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    Wow that's brutal...I'd check with a Geiger counter too lol

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    I have some 303 on the rack that came from India via China.

    You'll be cutting along just fine, then this big black smudge appears. Take another pass, it's gone. You never know when it's gonna show up, but it seems to be all through these bars.

    Don't know what it is- some contaminant but who knows what...

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    I had issues with 303 and 304 lately. I did not get certs, so I have no idea where it came from, but since I bought it from McMaster I figured it was either domestic or European and of good quality. The 304 ate tooling unless I dropped the RPMs way down and lowered the feed rate from the last time I ran the job. Trying to run at the same speed as last time was making brown parts with a mottled finish. Ran some 303 yesterday that was getting random tearing on some parts, till I slowed it down. These parts were all small, made from 3/16" and 1/4". Fortunately the jobs were quantities of 6, 12, and 30 pieces, so turning 2 min 30 second parts into 5 minute ones didn't create a big problem.


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