The best Side of situs bar178
The best Side of situs bar178
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Just one cylinder taken at random out of each great deal of cylinders has to be hydrostatically analyzed to destruction.
(iii) When dimension on the cylinder won't allow securing straight specimens, the specimens could be taken in almost any area or way and could be straightened or flattened cold, by force only, not by blows.
(2) Just about every cylinder need to meet the subsequent added requirement which assumes a cylinder horizontally supported at its two ends and uniformly loaded more than its entire duration.
Marking on Every container by stamping plainly and forever are only approved where the steel is no less than 0.09 inch thick, or on a metal nameplate forever secured towards the container by implies besides soft solder, or by indicates that may not decrease the wall thickness.
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(1) Each cylinder has to be uniformly and correctly heat handled previous to test because of the relevant process shown in table 1 of appendix A to this portion. Warmth procedure have to be accomplished after all forming and welding operations, besides that when brazed joints are applied, heat treatment need to stick to any forming and welding operations, but could possibly be carried out prior to, in the course of or after the brazing operations (see paragraph (m) of the section for weld repairs).
This examination could possibly be utilized and have to be as required by CGA C-three. The specimen must be bent right until the elongation within the outer surface, adjacent to the foundation from the weld, amongst the flippantly scribed gage traces a to b, has to be at least twenty %, except that this share may very well be diminished for steels possessing a tensile toughness in extra of fifty,000 psig, as presented in paragraph (k) of the part.
(iv) Permanent volumetric growth may well not exceed ten % of the whole volumetric expansion at take a look at strain.
Specimens taken over the circumferentially welded seam should be Slice from a person cylinder taken at random from Every single lot of two hundred or considerably less cylinders after warmth treatment method and ought to move satisfactorily the subsequent exams:
(one) By finest appliances and procedures. No defect is suitable that is probably going to weaken the concluded container appreciably. A reasonably sleek and uniform surface area end is necessary.
Markings on each container has to be stamped plainly and completely over a long-lasting attachment or on a check here metal nameplate permanently secured towards the container by signifies besides tender solder.
(ii) In utilizing the “extension under load” system, the entire pressure (or “extension below load”) corresponding to the pressure at which the 0.2 percent lasting pressure happens could possibly be decided with adequate accuracy by calculating the elastic extension with the gauge length beneath appropriate load and including thereto 0.
Markings on Each individual cylinder has to be by stamping plainly and permanently on shoulder, top rated head, neck or valve protection collar and that is permanently hooked up for the cylinders and forming an integral part thereof, furnished that cylinders not lower than 0.090 inch thick may be stamped to the side wall adjacent to prime head.
(iii) When sizing of cylinder won't allow securing straight specimens, the specimens could possibly be taken in any site or route and will be straightened or flattened chilly, by stress only, not by blows.