Whats the difference of full hard,semi hard, quarter hard and soft quality CRC?
600584
Oh, I thought you were referring to erections. Never mind.
401262
The answer to that depends on your application, you need to decide whether you want hardness, ductility, hardness, hardenability, or any of a number of other characteristics
469022
There are several alternative definitions of indentation hardness, the most common of which are:\n\nBrinell hardness test (HB) \nJanka Wood Hardness Rating \nKnoop hardness test (HK) or microhardness test, for measurement over small areas \nMeyer hardness test \nRockwell hardness test (HR), principally used in the USA \nShore durometer hardness, used for polymers \nVickers hardness test (HV), has one of the widest scales \n\nHowever i must say that in industry the only one i have used is Rockwell in the C Scale (Metals, steel mostly).  But I've heard Brinell is also very usefull.  \n\nIn your case HRA means Rockwell hardness in Scale A.  This A, B, C in Rockwell are just scales ok? Because some materials are not too hard so in a Rockwell C scale the result would be a very small number in comparison with a steel with superficial teatment that comes to around 60 Rockwell C (just an example)\n\ncheck this link for more information on hardness.
997925
go check http://www.asci.org/
10210
The number is a rating for the hardness of the lead/graphite.  Lower numbers are softer, higher numbers are harder.  The #2 is optimal for optical scan sheets and wear.
691113
Pipe dimensions conform to ASA B16.10 and thicknesses are generally expressed as 'schedules'. C-class has no bearing on thickness. You may mean GRADE C, which would be a grade under ASME SA106 seamless carbon steel pipe. If so, grade affects chemistry and tensile/yield strength properties.
340298
There are different bar code standards, some of them are:\n\nEAN/UPC (ISO/IEC 15420)\nCode 128 (ISO/IEC 15417)\nCode 39 (ISO/IEC 16388)\nInterleaved 2-of-5 (ISO/IEC 16390)\nPDF417 (ISO/IEC 15438)\nMaxicode (ISO/IEC 16023)\nData Matrix (ISO/IEC 16022)\nQR Code (ISO/IEC 18004)\n\nThe most common is EAN/UPC.  Information on decoding it can be found here:\nhttp://electronics.howstuffworks.com/upc4.htm\n\nI hope this info helps, as instructions on each type would be exteremely exhausting to type out.
24968
Software based repair is possible, well to a degree, until the "repair" software gets broken, it would be possible to make a program check the CRC and other checks on files and replace it with a correct copy, but what if the "correct" copies get damaged from a disk error? the system could get very messed up from the thing that is designed to keep it safe
403489
Go to azom.com they have info on both 304, 316 and many other metals.\n\nIn a nut shell, 316 stainless steels are more corrosion resistant than 304 stainless steels
101054
These should be sufficient: \nhttp://www.tigerdirect.com/applications/Category/category_tlc.asp?CatId=318&
527714
It is all relevant to what type of molding? Depending on the medium used and how difficult it is....setting up the inserts before is preferred for QC/QA reasons but drilling in later can be even better if the labor is not extreme.
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.
627467
The "U" stamp is for 'unfired' pressure vessels.  The "S" stamp is for power boilers (design/manufacture and assembly, if the designer/manufacturer also assembles), and the "A" stamp is for assemblers of power boilers who are not the designer/manufacturer.\n\nThis is all spelled out pretty clearly in the ASME Code.
27492
Check this page for the specs on dcm files:\nhttp://filext.com/detaillist.php?extdetail=DCM
943056
search polycarbonate+physical properties\ngood luck
1104564
GE makes bullet-resistant polycarbonate called Lexan. It's two sheets of thick plastic with a plastic film in the middle. The bullet can get through the first sheet of hard plastic but the film in the middle catches it. You see it a lot at banks. Also used in armored trucks and some limos.
1070119
i think you can get a lot of this info rmation to clerar your doubts\n\nhttp://www.calce.umd.edu/general/Facilities/Hardness_ad_.htm