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To: dalight

wow, your knowledge of steel is extremely limited. You must be a dinosaur referencing 36ksi beam and column steel. I’m surprised you didn’t mention 32ksi steel!

Here’s a clue for ya, now look up rebar, prestressing strands, spring steel, tool steel, and threaded fasteners.


48 posted on 08/13/2010 5:38:34 AM PDT by mamelukesabre (Si Vis Pacem Para Bellum (If you want peace prepare for war))
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To: mamelukesabre; Swordmaker
wow, your knowledge of steel is extremely limited. You must be a dinosaur referencing 36ksi beam and column steel. I’m surprised you didn’t mention 32ksi steel!

Look, you putrid sack of idiocy. Hot Rolled shape and plate steel accounted for $46 Billion of $77 Billion for all Steel product sales in the US in 2005. The vast majority of this was shipped as A36 or an equivalent grade. Rebar, spring steel, tool steel and even threaded fasteners are only specialty items with specifically designed characteristics. They have their place, but the law is that when you increase the yield strength of by adding carbon you pay the price of ductility and resistance to fatigue. Tool steels use specific alloys to enhance the strength of the steel coupled with special heat treating that can produce impressive properties but the expense and other limitations of this product limit its use to essentially what you find it typically used for, tools and dies.

On Free Republic it is wise to ask someone before you haul off and open you fat yap, because you might be talking to someone who is an industry expert with more than 30 years of experience.

What is a mark of ignorance is looking at the values provided by swordmaker and not being impressed at 270ksi yield strength with almost twice the elasticity of copper in a cast form.

I am sure that the problems that others have hinted at around here probably center around very limited options for joining components via welding processes, but I have to plead ignorance about this aspect of this material. But the amorphous structure could allow easy melting and joining or make it nearly impossible, and as folks are saying that the golf club people got frustrated with this alloy, my money is on the difficult side in absence of real knowledge. But, for making cell phone or computer cases, its hard to see the downside.

64 posted on 08/14/2010 8:08:35 PM PDT by dalight
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