Latest threads in Metallurgy discussionsshow only best voted threads
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Painting weathered, cast parts?
Cast alum. (maybe magnesium) brake caliper. Original paint is chipped off in places, and metal looks oxidized. How to best prepare this metal? A good scrubbing and rinsing, of course. Light sanding,...
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14 years ago
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Spray Painting Woes
The goal: to change the color of a few new, factory-painted steel parts. I lightly sanded all surfaces with 800g emery paper. Cleaned up with denatured alcohol. Sun dried. First coat of spray enamel...
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14 years ago
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Painting over anodize?
Is any special preparation require when painting over a newly oxidized steel surface? Will either fine roughing up with 400 grit work, or using a regular oxide primer? Or...? Thanks.
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14 years ago
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How Early Metal Crystalline Structure Determined????
How did the first researchers determine the various crystalline structures of metals? Anyone know? Mark
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14 years ago
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the fifth international conference on hydrometallurgy
yesterday I registered for this conference which will held in Zhangjiajie, China in the coming July, looking forward to make new friends there...
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14 years ago
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Acra Cast High Quality Investment Castings
hi, We are a company based in Michigan USA. We specialize in castings of over 80 alloys, all quantities. Rapid Prototyping, Free Engineering Consultation. Reduce Secondary Operations. Personal...
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15 years ago
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Solder Shelf Life - 96-Sn/4-Ag
I have some Kester rosin core wire solder (96-Sn/4-Ag) that has exceeded its shelf life. According to Kester's knowledge base, their Shelf Life Policy statement states that: "Flux cored solder wire...
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15 years ago
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Iridium plating versus nitriding
For wear resistance , how does iridium plating compare with ceramic coatings such as titanium nitride or diamond-like coatings ? TIA
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15 years ago
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Metal Recommendation Please
I am trying to find a substitute for ductile iron. I need to find a metal that has similar ductility as ductile iron, but, is a tad lighter. I have tried ZA12, and although the casting came back...
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15 years ago
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corrosion fatigue of aluminum
hi, is there difference between the behavior of aluminum and steel ? can anyone help me, please ?
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15 years ago
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Material Grades for (minus) - 34 Deg C
Hi, What are the grades for the following materials to be used at continious operation of - 34 Deg C, any standards on the subjects ALuminium Fastners Glass Epoxy Thanks Anil Bhati
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15 years ago
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Aluminum oxidation and bonding
We are making a custom heatsink. Here a thin sheetmetal fin (1100 alloy) will be bonded into a slot in 6061 AL using a special epoxy. One question that has come up is that, apparently, bonding to...
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15 years ago
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Should this pipe need to do flattening test ?
Do 508=A1=C142, material is 15NiCuMoNb5, PO standard is EN 10216-2 In the mandatory test section of table 13 of EN 10216-2 , it says that "Flattening test for D < 600 mm and T/D ratio =A1=DC 0,15 but...
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15 years ago
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which standard can be used for non-metal inclusion of P22 steel piping
there is no requirement for non-metal inclusion in ASTM A335,But I think P22 steel pipe should have some restriction of non-metal inclusion . If I want to put some restriction on technical...
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15 years ago
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who know the IBR certificate issued by Central Boiler Board of indina
who know the IBR certificate issued by Central Boiler Board of indina For I am charge with the purchase of the main piping and fitting , I need to know many technical thing . who can recommend some...
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15 years ago
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