what is the roughness factor for copper and galvanized steel?
94774
the absolite roughness for galvanized steel is 0.15 ks/mm and for cooper not sure , but i think its 0.0015 ks/mm
182647
The ref. lists many different steels and their physical properties. Go there and search "high carbon steel" and "high chromium steel".\nI checked the first item listed for these two searches and got:\n(for high carbon steel:)\nAISI 1055 Steel, cold drawn, annealed, 19-32 mm (0.75-1.25 in) round\nComponent    Wt. %  \nC 0.5 - 0.6   \nFe 98.41 - 98.9   \nMn 0.6 - 0.9   \nP Max 0.04   \nS Max 0.05   \nDensity 7.85 g/cc 0.284 lb/in³ \n\n(for high chromium steel:)\nCrucible AIRKOOL® (AISI A2) Tool Steel\nComponent    Wt. %  \nC 1   \nCr 5.25   \nFe 91.55   \nMn 0.85   \nMo 1.1   \nV 0.25   \nDensity 7.86 g/cc 0.284 lb/in³
995788
The density of wrought iron is 7.8 g/cm3 which translates to 7,800 kg/m3.\nHot dip galvanizing is a process by which steel is dipped in a zinc bath and coated to prevent rusting. Steel dipped in this process will gain about 6% weight.
676026
Wild guess here... a dihydrate of copper chloride.\n\nSecond guess would be copper sulfate, possibly from the manufacturing process.
483086
It depends upon the type of brass, and the environment. Brass and copper are incompatable in sea water. Accelerated corrision will occur due to a galvanic reaction. Corrosion may also occur in a marine atmosphere depending on the type of brass. They are generally compatable in normal industrial atmospheres.
168038
You would have to look into the properties for AMS, ASTM, AISI, ASME, Federal, Mil and SAE steels. It all depends on what type of steel you are using. Stainless, mild and what type of hardness (1/2 or 1/4 for stainless) that you need and what the purpose of the part is going to be used for
154339
I am guessing you mean stainless steel. Stainless means that it resits staining  normal oils, soaps, the mild acids found in open air and persipation (human sweat),  that rust or stain normal metals such as iron, copper, sterling silver. Etching or engraving usually very strong acids such as hydrochloric (HCl).
285310
Try contact the ASTM Directly - it's one of their specs.\n\nA311/A311M-04 - Standard Specification for Cold-Drawn, Stress-Relieved Carbon Steel Bars Subject to Mechanical Property Requirements.\n\nwww.astm.org\n\nThanks!!! Morgan x :o)
1165664
As  far as I know, galvanizing involves coating metals like iron with zinc. If you understand redox, then zinc is a stronger oxidizing agent than iron i.e. it will react before iron gets a chance to become rust. When zinc reacts with water, it makes zinc hydroxide which coats the outer layer of the galvanized metal. Zinc hydroxide, unlike rust, doesn't look too bad and prevents any further reaction from occuring.
763583
If it was me, I would specify the Ra or RMS value, the surface type (cast, machined, polished, ect...), and also the surface hardness (Rockwell B or C scale).  If you have access to a Machinery's Handbook, check it out.
438539
You should find that under the ASTM Manual for steel. Your engineering department should have a copy, otherwise try finding it on line.
923963
Traffic timing for this much weight is also considerable. A\n   building code shows that you might need 15 or more for\n   this area so titanium is probably out.  The core value of\n   bronzed steel is ok for the average busy building.  Size again\n   must be measurables ranging from 2.7 to 3.7 made in 20 foot\n   can be made in 35 precise.
663809
Some information\n\nhttp://www.key-to-steel.com/Articles/Art2.htm\n\nmedia.wiley.com/product_data/ excerpt/61/04713870/0471387061.pdf
332542
Copper is a pure metal. The conductivity of metals increase with temparature owing to decrease in the vibration of the +ve ions in the crystal lattice. Germanium is a semiconductor. Its conductivity decreases with temparature. Hence copper has more conductivity than Ge at low temps.
778581
1: Copper, 2: Aluminum, 3: Stainless steel.
422657
go to www.stoodyind.com  This site list all sizes for a specific metal thickness. They have a very complete chart showing everything you need to know about the cut. Psi, kerf, speed etc.
363070
Copper, Iron, Chromium, Aluminium