Latest threads in Metallurgy discussionsshow only best voted threads
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Labs who can run rotary slag testing of refractories?
There's an ASTM method for testing refractory brick for resistance to corrosion by molten slag, ASTM C 874, but the ASTM website doesn't have a list of people that can run it (zero results). Does...
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16 years ago
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Welded 455 SS rusting
Hello I do welding on 17-4 and 455 SS parts used in the medical field , have had a problem recently with rust on the inside of a 455 tube after welding , I.D. is about .200 in. . parts are pasavated...
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16 years ago
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Your best solution to relieving residual stress!
Your best solution to relieving residual stress! We know that you are a world-renowned company in mechanical industry, have you ever encountered with the problem as the residual stress within work...
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16 years ago
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Electrowinning of Nickel
I'm trying to get my arms around the electrowinning of Nickel and wondered if there was a good resource on the internet that explains the process in layman's terms? Diagrams/pictures would help....
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16 years ago
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Carbon absorbent by S.S.
I build water cooled exhaust manifold systems for small 2 - 4 cyl sail boat engines. The prevailing practice is to not build exhaust systems from stainless steel. However, I believe that stainless...
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16 years ago
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VICKERS M55 MICROSCOPE
Hi Group For disposal at a reasonable price. We have a Vickers M55 Metallurgical projection microscope, in excellent condition and which has been very carefully used in our test labs. Unit is desk...
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16 years ago
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Cured copper in EdenPURE heaters is unreal, says U.S. Copper Development Association
Web sites for the heavily advertised EdenPURE quartz infrared portable heaters such as: and that they use an "amazing heating element" which involves something called "cured copper". Now, the Copper...
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16 years ago
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What the heck is cured copper?
My daily paper once again ran a full-page ad for the EdenPURE Quartz Infrared Portable Heater. The explanation for how this marvelous gizmo allegedly works is pure Star Wars (movie) hocus-pocus. It...
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16 years ago
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density of coins?
The following was stated on a group that I belong to: "When the coin blank gets loaded, inbetween the die faces, it has a certain size and a specific weight. Once it is "SMACKED" as you call it, with...
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16 years ago
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Separation Possible via Acids and Centrifuges?
Hello, I wasn't exactly sure where to post this kind of question but I figured this was a logical choice (among a few others)... Suppose you have a solid mixture of tungsten, gold, and other metals...
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16 years ago
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Liquid Precipitator Plant
I am interested in building or buying small precipitation plant (10 to 20 gallons a minute) that uses a liquid precipitator instead of a granular precipitator. Unlike a Merrill-Crowe system that used...
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16 years ago
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Normalized vs. Quenched???
Can someone help me out here... I have a roller to quote making for a customer where they specified "4140 Normalized & Tempered 275-315 Bhn" I often also see "4140 Quenched & Tempered" So, what is the...
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16 years ago
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Etching of titanium, aluminum and stainless steel
Hi! I need to etch some samples to be able to study the various phases in the different materials. Anyone have ideas of what to use to etch these samples? Stainless steel, austenitic and duplex...
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16 years ago
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HP Desktop for sale!
Hi, I have an unused HP Pavilion with the fallowing specs: # Processor: AMD Athlon 64 X2 4000+ (2.1GHz, 2000MT/s System Bus) # Memory: 2048MB PC2-5300 DDR2 SDRAM memory (2x1GB) (expandable to 8 GB (4...
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16 years ago
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Anodised aluminium and corrosion?
I'm thinking about making a couple of glass covered solar evaporators, to purify well water. There are plenty of designs around, generally fabricated out of a fiberglass base and silicon sealants to...
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16 years ago
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