Markings have to be stamped plainly and completely with a long term attachment or on the steel nameplate completely secured into the container by implies besides tender solder.
Cylinders have to be made working with machines and processes sufficient making sure that Each individual cylinder produced conforms to the requirements of this subpart. No defect is permitted that is likely to weaken the finished cylinder appreciably. A reasonably smooth and uniform area complete is necessary. Heads may be attached to shells by lap brazing or could be shaped integrally.
(one) Each and every opening in the container needs to be furnished that has a fitting, manager or pad of weldable stainless-steel securely connected into the container by fusion welding.
This exam can be employed and must be as expected by CGA Pamphlet C-3. The specimen needs to be bent right up until the elongation on the outer surface, adjacent to the basis of your weld, in between the flippantly scribed gage lines-a to b, is at least twenty %, other than that this percentage can be decreased for steels possessing a tensile energy in excess of 50,000 psi, as presented in paragraph (k) of the section.
(1) Specimens need to be taken from one particular cylinder immediately after heat cure as illustrated in appendix A to this subpart, picked at random from Every wide range of 200 or fewer, as follows:
(iii) Long lasting volumetric growth might not exceed 10 % of whole volumetric growth at examination strain.
(b) Design qualification screening should be concluded if the design is made with a new mildew or when there is any modify during the Qualities of the fabric of construction.
(1) For spheres the exam needs to be on the weld among parallel metal plates with a push with welded seam at proper angles on the plates.
(2) Heat cure isn't essential after welding or brazing weldable minimal carbon sections to attachments, specified in paragraph (file)(one) of the portion, of similar materials which have been Earlier welded or brazed to the best or bottom of cylinders and effectively heat dealt with, delivered this sort of subsequent welding or brazing will not develop a temperature in excessive of 400 °File in any part of the best or bottom content.
(one) The metal Utilized in the development of your cylinder have to be as laid out in table 1 of appendix A to this element. The cylinder producer have to retain a report of deliberately added alloying features.
(4) A take a look at cylinder or test ring want stand for only one of many heats in a very furnace batch supplied the opposite heats during the batch have Formerly been examined and possess handed the exams Which these types of tests tend not to characterize greater than 200 cylinders from Anybody warmth.
Content should be identified by any acceptable strategy besides that plates and billets For decent-drawn cylinders need to be marked with heat number.
(i) A gauge length of at least 24 occasions the thickness using a width not above six moments the thickness. The specimen, exceptional of grip finishes, will not be flattened. Grip ends could possibly be flattened to in just one inch of every end with the decreased segment. When sizing of cylinder will not allow securing straight specimens, the specimens could be taken in almost any area or way and will be click here straightened or flattened chilly by stress only, not by blows.
The limiting chemical composition of metal licensed by this specification need to be as proven in desk I of appendix A to this part.