It does not exist. Concentricity is the variation of the axis of one form to the axis of a datum or reference, it is a control of position. A single tube can not have a concentricity call out. You probably mean cylindricity which is a control on form. A quick Google search yielded me such numbers as .015 inches, but it didn't reference the quality of the process. But I'm sure now that you know what your looking for you can find better information.
ASTM A792 is a standard developed by ASTM International. The full title is ASTM A792/A792M-08 Standard Specification for Steel Sheet, 55% Aluminum-Zinc Alloy-Coated by the Hot-Dip Process. A792 covers 55% aluminum-zinc alloy-coated steel sheets in coils and cut lengths for applications requiring corrosion resistance or heat resistance or both. For more information, please visit www.astm.org.
Sheet metal @ 8 gauge is 0.1644 inches for standard steel and 0.1285 for aluminum.
This isn't a question, try defining it a little.
scfh is "standard cubic feet per hour" and cfh doesn't neccessarily mean "standard". Standard conditions are stanard temperature (293 K), and standard pressure (1 atm, 101,300 Pa).
IS 2062 is not a grade. This is Indian standard which covers more than 80 different grades. It is impossible to find ASTM equivalent for a standard in a whole.
the voltage tolerance of a standard electric motor is
The standard test is a 3 hour GTT (glucose tolerance test).
h stands for standard hole in tolerance
Aluminum's standard state is solid at room temperature and pressure.
+/- 5% of setting
At standard temperature and pressure (STP), aluminum bromide exists as a solid.
Standard aluminum foil is typically around 0.016 mm thick.
Please show examples of "++"tolerance feature
The standard electrode potential of aluminum is -1.66 V. This means that in a standard electrochemical cell, aluminum tends to be oxidized (lose electrons) rather than reduced.
Standard resistors are typically made of ceramic or metal film materials such as carbon film or metal oxide. Heating materials can be made from various materials like nichrome (nickel-chromium alloy), Kanthal (iron-chromium-aluminum alloy), or tungsten, which offer high resistance and heat tolerance.
The basic standard practices requires that only the individual circular elements meet the specified tolerance level.
Aluminum is a solid at standard temperature and pressure, STP. The ore for sluminum is called bauxite.