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First foreign forging

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发表于 2021-8-31 23:32:22 | 显示全部楼层 |阅读模式
I knew this was going to happen someday with these... I think this is a second generation attempt over a period of 2 years or so.The sad thing for me is they are prolly not that much more money new than my trouble to save them. I don't know exactly the price advantage over US and Canadian forgings but I'm sure it's big.I think the carbon may be a bit high, or the alloys a bit low because it seemed to scale too much while welding (the ends are higher than 800f when placed in the weldor). Also it tested too soft for 4340 normalized by about 5 points RC, but that may just mean they were annealed (could be a translation problem on properties). I don't have the ability to test for exact alloy or carbon percents, just chemical tests to see if things are there.We'll just have to see how they hold up, bummer... Pics attached;Matt Attached Images
Reply:Originally Posted by Matt_Maguire(the ends are higher than 800f when placed in the weldor).
Reply:Originally Posted by Matt_Maguire(the ends are higher than 800f when placed in the weldor). Matt
Reply:I want to see the welder
Reply:It is a good possibility that it could be martinsitic steel. Many castings are machined to look like forgings on Japanese, Chinese, and Indian stuff. Kubota and Mahindra come to mind.
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