what hardness required to get 110-120kg/sq.mm tensile for En-19 Grade Material?
957231
I dint know about British standards but and American standard "B7" hardness should handle that stress (probable with a lot of over-kill)
278773
486A for Wire Connectors.\nFor secureness test follow the Pull Test requirement per UL. \n\n\nCheck out the following link:
248692
Need to know the type of metal and thickness to answer this question.
402913
well, I don't know about the testing, but for design, you use 0.4Fy as your shear strength. If you have 36 ksi steel, then you need 14.5 ksi to create a shear failure. Don't know if that works forpunching holes; it's probably less. Good question.
350595
C whether this helps You,\nhttp://web.umr.edu/~kpeaslee/classes/Met221/KeyHW2.pdf#search='measuring%20SDAS%20in%20Aluminum%20alloy%20casting'\n\nhttp://www.aluplanet.com/eng/info_eco_doc_PO.asp?Mnu=141&Itm=163&Grp=0&Tgl=162&Doc=3804
303320
Try   http://www.insitu.de/materialdatabase/materialdatabase_2_4e.html
1042454
I'm not familiar with this material, but sometimes websites that give info on materials and compounds include IR-specs.  Or, if you have a sample, call your local university.  Some one may be able to help you there.
784818
no way to say.  it could be ANY grade of carbon steel (A36, 1018, 1010, 1008, ETC.), and even then, all grades have a range of carbon.\n\nfor example, 1144 has a carbon range of .40 - .48, and 1018 has a carbon range of .15- .20.  the only way to know for sure on a physical piece is to have it tested by a lab, such as Stork, Durkee, or Bodycote.
1140224
There are literally thousands of grades of steel out there. Each one having different properties including tensile strength, carbon content, etc.  If you are wanting to know about a certain application, its best to consult an engineer. If you are just wanting to learn a little about it, just get a book about engineering materials.
1127388
Here is a list of the gauges i've heard of:\n12\n\nHope that is helpful.
223236
National Institute of Standards and Technology (NIST) Handbook 105-1\nhttp://ts.nist.gov/ts/htdocs/230/235/105-1.pdf\n\nSpecifications and Tolerances for Field Standard Weights (NIST Class F)
833112
First, I'm assuming that your question is "what do i do to make sure the length and mass per unit length of the wire is constant AS tension changes?" (note change of 'and' to 'as') and the rest of the material is just for explanation.\nThe answer is, you can't keep M/L constant. If your setup actually uses two fixed supports, L will be constant, but tensioning the wire stretches it, removing some M from between the supports. You can measure the amount of stretch by making two benchmarks (maybe small pieces of masking tape) in the unstretched wire and measuring their distance as you change the tension. (Doing the appropriate scaling between the baseline distance and the length of the stretched wire.)\nFor the theory on wire tension and resulting dimension changes, search Poisson's ratio. Basically stretching a length L of wire by epsilon*L (epsilon is a small number) would result in a thinning of radius R of 0.5*epsilon*R if the material were incompressible (thus inexpandable). However all solids including steel expand under tension to some extent, so the Poisson ratio of 0.5 above is more typically 0.25 to 0.35 for metals. See the ref.
863404
The gravel chips have density about 2.9 to 3.0 gm/cc.  The problem is estimating their packing factor.  Using 0.55, we have say 1.62 gm/cc therefore 1.62 tonne per cubic metre.  The actual chip size doesn't come into the calculation, so sand ought to be the same, except that if the grain size varies a lot then the packing factor could maybe go up to 0.65 as small grains fill the spaces between larger grains, but still just under 2 tonne/m3.
1104551
I do not know about British standard but I would poor at least 15cm thick fiber reinforced slab. If no fiber you may want to throw down a 15x15cm (or similar) steel reinforcing mesh. \n\nIf you intent to put lifts then you must beef up the floor to support the structure per manufacture’s recommendations.\n\nGood luck
1069326
I suppose you meant Tungsten, it is about  is about $29 per kilo.\nor $290 per metric tonne unit, a measure equal to a hundredth of a tonne (approximately 22 pounds).
548902
have you tried silicone rubber.  tensile is typically better than 1500 and 55 shore a is average.
378996
go to london metals exchange\nhttp://www.lme.co.uk/