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Recent content by BobBollards
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Martensitic stainless steel apperaence due to rust
Hi, the appearance depends on how the pipes where made, it should say on the material certificate eg "hot rolled" or "descaled" this will affect how they look Bob www.metals4u.co.uk- BobBollards
- Post #2
- Forum: Metal and Metallurgy engineering
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Black "baked in" staining on aluminum extrusions after brazing process
We sometimes rub soap on aluminium before annealing items, the soap turns black when the correct temperature is reached, could this be the problem ? Bob www.metals4u.co.uk- BobBollards
- Post #8
- Forum: Industrial/Mfg engineering general discussion
