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All spun cylinders and plugged cylinders have to be tested for leakage by dry gasoline or dry air strain after the bottom has actually been cleaned and is also absolutely free from all humidity, issue to the next conditions and limitations:

(i) The remaining cylinders in each lot have to be stress tested from the proof tension, drinking water-jacket or immediate enlargement examination method as prescribed in CGA C-one. The least take a look at pressure have to be preserved for the specific timeframe plus the testing equipment needs to be calibrated as prescribed in CGA C-one.

A root bend examination specimen need to be Slash through the cylinder or welded test plate, utilized for the tensile exam specified in paragraph (n)(one) of this section. Specimens has to be organized and analyzed in accordance with and will have to meet the requirements of CGA Pamphlet C-three.

This test can be applied and has to be as needed by CGA Pamphlet C-three. The specimen need to be bent until eventually the elongation in the outer surface, adjacent to the root from the weld, concerning the lightly scribed gage traces-a to b, is at the least twenty percent, apart from that this share might be lowered for steels aquiring a tensile power in excess of 50,000 psi, as supplied in paragraph (k) of the segment.

(i) The phrase “spun” or “plug” need to be put close to the DOT specification marking when an conclude closure in the finished cylinder is welded through the spinning system, or effected by plugging.

(iii) When dimensions with the cylinder doesn't allow securing straight specimens, the specimens might be taken in any spot or path and will be straightened or flattened cold, by force only, not by blows.

(iii) For the objective of pressure measurement, the First pressure needs to be established whilst the specimen is beneath a anxiety of 12,000 psi, along with the strain indicator looking at has to be set on the calculated corresponding pressure.

(i) The remaining cylinders in the whole lot needs to be examined by the evidence tension, drinking water-jacket, or direct expansion check strategy as prescribed in CGA C-1. The least check tension should be taken care of for the particular timeframe as well as the screening gear need to be calibrated as prescribed in CGA C-one.

Heads attached by brazing should have a driving healthy While using the shell, Except if the shell is crimped, swedged, or curled in excess of the skirt or flange of the head, and be completely brazed until full penetration by the brazing materials in the brazed joint is secured. Depth of brazing from the joint should be no less than four (four) instances the bare minimum thickness of shell metal.

Resources need to be recognized by any appropriate method other than that plates and billets For decent-drawn containers should be marked with the heat variety.

(iii) When dimension of cylinder won't permit securing straight specimens, the specimens may be taken in almost any locale or path and may be straightened or flattened chilly, by tension only, not by blows.

(2) A spun check here cylinder is just one wherein an finish closure while in the completed cylinder has long been welded from the spinning approach.

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S = PD / 4tE In which: S = wall strain in lbs psi; P = exam strain prescribed for water jacket take a look at, i.e., at the very least 2 instances support force, in psig; D = outdoors diameter in inches; t = bare minimum wall thickness in inches; E = 0.