what does SUS in stainless steel mean? example sus304?
353096
The System Usability Scale (SUS) is a simple, ten-item attitude (Likert) scale giving a global view of subjective assessments of usability. It was developed by John Brooke at Digital Equipment Company in the UK in 1986 as a tool to be used in usability engineering of electronic office systems.\n\nThe usability of a system, as defined by the ISO standard ISO 9241 Part 11, can be measured only by taking into account the context of use of the system – i.e., who is using the system, what they are using it for, and the environment in which they are using it. Furthermore, measurements of usability have several different aspects\n\neffectiveness (can users successfully achieve their objectives) \nefficiency (how much effort and resource is expended in achieving those objectives) \nsatisfaction (was the experience satisfactory) \n\nMeasures of effectiveness and efficiency are also context specific. Effectiveness in using a system for controlling a continuous industrial process would generally be measured in very different terms to, say, effectiveness in using a word processor. Thus, it can be difficult, if not impossible, to answer the question “is system A more usable than system B”, because the measures of effectiveness and efficiency may be very different. However, it can be argued that given a sufficiently high-level definition of subjective assessments of usability, comparisons can be made between systems.\n\nSUS has generally been seen as providing this type of high-level subjective view of usability and is thus often used in carrying out comparisons of usability between systems.\n\nIt has been widely used in the evaluation of a range of systems.
888178
If 'T' is the greek 'Tau' then it is the symbol for shear stress, shear stress = Shear Force / Cross-section area, so for your example it is 2400 / 4 = 600 psi (pounds per square inch) which is a reallly really low stress... aluminum for example can sustain stresses of at least 20000psi and steel is 3x stronger.
945837
Sulphide at th correct pH will precipitate NiS before MnS.\n\nIn your case, and excess of ammonia will form a soluble Ni complex and only precipitate Mn as the hydroxide. On boiling the Mn(OH)2 will probably oxidise to black MnO2.\n\nAding NaOH to both in excess will dissolve Al(OH)3 but Mn(OH)2 so you could use this test to tell the respective chlorides apart.
421137
MSDS of rustripper\n\nhttp://msds.ogden.disa.mil/msds/owa/web_msds.display?imsdsnr=198627
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.
655434
K2S\n\nPotassium is K.  Sufide is S2-, so you need 2 K's.
1908
Nitric acid is a highly oxidizing acid, and when combined with stainless steel will promote oxidation of the chromium content of the steel, creating a film that will protect the steel from further attack by the acid. Stainless steel is a recommended container for nitric acid. \n\nHydrochloric acid is less likely to undergo this interfering oxidation reduction reaction, leaving the steel unprotected, so even though it is a weaker acid, it will dissolve the steel. \n\nSometimes the turtle wins the race.
1151111
all components of the submersible pump are not made of same material.\nMaterial for different componet is listed below:\nIMPELLER:\n      Brass/Stainless Steel\nDiffsuer:\n       Brass/Stainless Steel\nStage casting:\n       Stainless steel\nPump shell:\n        Stainless steel\nBearing Bush:\n        Leaded Bronze\nPump shaft:\n        Stainless steel\nSuction bracket:\n        Cast Iron/ Stainless steel\nHardware(nuts,bolts):\n         Stainless Steel 304\n\nsince "submersible" pump sits in a body of water from which the pump inlet draws the water from, the material in which the pump made should be of more corrosion ressitance. Brass & Stainless steel have high corrosion resistance property. while in cast iron, the iron content have more affinity to react with the oxygen in the water to produce rust. so it is not preferred to produce casing for these type of pumps.
854997
CuS + H2SO4 ===> H2S + CuSO4
235553
316 L , it cintains chrome vanadium additives, acid resistance , but grades of 400 series is more hardedbut loosing a few of stainless properties like 430
848588
Practical.  Is used all the time for stainless steel fabrication.  Less clean up and splatter than mig welding.
686818
stainless steel is rust proof anyway, to do this, zinc is added during the smelting process, this creates a coating over the metal and when it comes into conntact with oxygen and water it forms a clear oxide layer over the metal, hence stopping the steel from rusting
57753
If a product carries this mark, it means that Underwriters Laboratories found that samples of the product met UL's safety requirements.\n\nSee http://www.ul.com for more information.
526830
Depends on what you are fabricating. \nAre you talking about making the material itself or fabricating structural components from stainless materials?\n\nAnd what type of material? What grade of stainless? What configuration? Angle iron or I-beam? Welded or bolted?\n\nSounds like you need to talk with an experienced estimator and/or structural engineer.
926295
Convert all this to MKS units and find the cross-section of that wire.\n\nE (stainless-steel) is given to be 18 x 10^10 N/m^2.\nCross-section is from pi(r^2).  This must be in m^2, not mm^2.\n3.14159(0.125*10^-3 m)^2 = 4.909 x 10^-8 m^2 cross-section.\n\nYoung's modulus (E) is given as,\n\nE = (delta F / cross-section) / (delta length / original length)\n\nDelta F is the tension in the wire, thats the first part of solving this problem.  So rearrange the equation for delta F, renaming delta F as "tension" and substitute the value given in place of E:\n\nTension = (18 x 10^10 N/m^2) * (8 x 10^-5 m / 0.028 m) * (4.909 x 10^-8 m^2)\n\nTension in the wire is therefore 25 N.\n\nThe magnitude of force on the tooth is 25 sin 30 deg or 12.5 N\n\nWarning!:  While the reasoning is sound, double-check all of my math.  Also, note that I rounded the intermediate answer 25 N.
489794
Surface finish is called out as ra, rms, or rz.  They each have their own formula.
603078
a) Ru - ruthenium\nb) S - sulfur\nc) Ir - iridium; with an incomplete d-subshell, it must be a transition metal\nd) Sb - antimony