| Subject | Date Asked |
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| ASTM standards-latest version | 4/29/2009 |
Q: Can you please provide some information about latest versions of the following ASTM standards ...
A: Unfortunately I have no experience with this structural steel, specially under brittish standards ...
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| metallurgy | 3/1/2009 |
Q: I have an antique piece of 'silverware'assayed a long time ago as being 85% silver 15% lead. Does ...
A: I have done a little research on my material and in some specialized sites and could not find any ...
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| Commonly used Metals | 1/11/2009 |
Q: I'm doing a science project and I need to know which metals are most commonly used in construction. ...
A: That will depend on the segment. For oil&gas, we use mostly low and medium carbon steel, and ...
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| metallurgy | 1/8/2009 |
Q: what is or what characterize the thermodynamic state of metal (structure of metal)? Thank You, Janez
A: In the solid state, metals have a cristalline structure made of metal atoms which are drawn together ...
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| Heat Treatment | 1/5/2009 |
Q: When we do cardonitriding or casehardening operation for a plain carbon steel the casedepth,hardenss ...
A: Usually that will depend on the time and temperature, as well as chemical composition of the furnace ...
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| steel cabling | 7/22/2008 |
Q: I am trying to find out how a blacksmith circa the year 1200AD would be able to make steel cables, ...
A: Dan, I don't think it was possible due to steel not being mass produced at that time. The cost ...
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| Stainless steel corrosion in sulfuric acid | 7/8/2008 |
Q: I work with sintering of metal powders and I have been trying to find an additive alloy powder for ...
A: I am still far from being a doctor, but thanks, anyway. For H2SO4 corrosion resistance at 80C it is ...
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| Railroad Footeres | 7/8/2008 |
Q: .. I'm interested in knowing what type of metal railroad footers are made of; and if I can cook on ...
A: I have been done some research on railroad steel slabs, since it is not my field of expertise. ...
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| Copper fasteners | 7/2/2008 |
Q: Is there any specific benefit to using copper or bronze fasteners as opposed to the more commonly ...
A: I need more information to answer this question. Are these fasteners to be used in some special ...
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| Corrosion on 316 ss cables | 7/1/2008 |
Q: I recently erected a balistrade near the sea using grade 316 stainless steel cables. Within a few ...
A: Although SS 316 is one of the best common stailess steels for corrosion resistance, it still suffers ...
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| metallurgy | 6/27/2008 |
Q: what is carbida? ANSWER: Hello, I did not find anything about carbida, except for the information ...
A: The epsilon carbide is a transition carbide of between Fe2C and Fe3C composition, with hexagonal ...
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| Corrosion resistance | 5/22/2008 |
Q: I have a customer who wants to place a unit we manufacture in an atmosphere containing 35% hydrogen ...
A: In fact there won't be any residue. What will happen is that the hydrogen peroxide decomposes into ...
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| marbelizing copper | 5/22/2008 |
Q: Last year we built a house and used 1/8” thick copper inserts with a cut-out design in our stair ...
A: I have pondered a while over this situation but could not find a procedure to help you. You guessed ...
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| White rust on galvanized sheets | 5/16/2008 |
Q: We recently unloaded a large/heavy order of galvanized sheets during a driving rain and water got ...
A: Leonard, I am sorry for the lateness of this response. I was away and did not set my status as ...
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| Corrosion resistance | 5/15/2008 |
Q: I have a customer who wants to place a unit we manufacture in an atmosphere containing 35% hydrogen ...
A: Easley, I am very sorry for the lateness of the response, but I was travelling in the period and ...
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| Chemical effects on sintered steel | 5/2/2008 |
Q: We use an electroplating process on several kinds of steel bearing liners that adds a layer of ...
A: That will depend on the time, temperature and composition of the chemicals used, as well as on the ...
|
| melting lead | 4/30/2008 |
Q: i am casting lead bullets for military surplas rifles. is there any substance that i can add to the ...
A: Good morning, Bill, I have never heard of coloured bullets before, so i was pondering on the ...
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| Brass | 4/29/2008 |
Q: what are the compositions of brass, how can this metal be heat treated, what is the melting point of ...
A: Good afternoon, There it goes: Melting temperature is around 930-950ºC (1706-1742 F), due to ...
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| grinding of 316L SST | 4/26/2008 |
Q: i was wondering if you could tell me about surfacing grinding 316L SST. I run a Kent Surface ...
A: Mike, Since austenitic stainless steels area usually more resilient than ferritic ones, you may ...
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| Corrosion | 4/25/2008 |
Q: Corrosion resistance I am looking for material with corrosion resistance against HF(g) and HCl(g) ...
A: Tomas, This is a very tough question! There are many variables playing important roles in the ...
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| Brass | 4/24/2008 |
Q: what are the compositions of brass, how can this metal be heat treated, what is the melting point of ...
A: Brass is an alloy of copper and zinc, with varying degrees of mixing. It is a substitutional alloy, ...
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| Normalising temperature | 4/23/2008 |
Q: My question is regarding the normalising temperature & soaking time for the materials. How do you ...
A: Sorry for the lateness in the response, I have studied with an excellent russian book translated to ...
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| Lincoln A/C 225 | 4/19/2008 |
Q: Is it better to leave welder on all the time, while preparing another part, or constantly turn it ...
A: Good evening, Bob, This question is, in fact, a life cycle cost question, and the answer varies ...
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| Normalising temperature | 4/18/2008 |
Q: My question is regarding the normalising temperature & soaking time for the materials. How do you ...
A: Good morning Ajay, Normalization is a special annealing process intended to reduce the effects ...
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