bar 178 - An Overview

bar 178 - An Overview

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(i) The remaining cylinders in Each individual great deal has to be examined because of the evidence strain drinking water-jacket or direct growth examination system as prescribed in CGA C-one. The minimum take a look at stress have to be managed for the specific timeframe along with the tests equipment needs to be calibrated as prescribed in CGA C-one.

(iv) On a plate attached to the top of your cylinder or long-lasting aspect thereof; adequate Place have to be remaining to the plate to provide for stamping not less than 6 retest dates; the plate need to be at the least 1⁄sixteen inch thick and need to be connected by welding, or by brazing at a temperature of at least 1100 °File., through all edges of your plate;

A root bend exam specimen has to be faraway from the cylinder or welded test plate that was useful for the tensile check laid out in paragraph (l)(one) of this area. The specimen needs to be taken from throughout the circumferential seam and need to be prepared and examined in conformance with and will have to satisfy the requirements of CGA C-three.

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(three) The Charpy V-notch influence Houses to the a few effect specimens which should be tested at 0 °F is probably not fewer than the values shown as follows:

(i) The remaining cylinders in Just about every whole lot should be tested via the proof force water-jacket or immediate expansion check process as prescribed in CGA C-1. The bare minimum take a look at tension needs to be maintained for the specific timeframe along with the screening machines has to be calibrated as prescribed in CGA C-1.

The completed cylinders has to be uniformly and adequately heat dealt with before exams. Heat treatment method of cylinders on the licensed analyses have to be as follows:

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Cylinders has to be produced working with products and processes ample to make certain Each and every cylinder created conforms to the requirements of this subpart also to the next necessities:

(iii) Acquiring a certified Verify Examination on just one cylinder out of each wide range of 200 cylinders or significantly less, if a certification containing more info information to indicate compliance with the material specification is attained.

(a) Each individual container has to be manufactured by thermoplastic procedures that can guarantee uniformity of the finished container. No used materials other than manufacturing residues or regrind from your exact same manufacturing process might be applied.

Testing is required on two (two) specimens removed from the sphere or flat consultant sample plates of precisely the same heat of material taken at random within the metal utilised to create the spheres.

(one) Welding or brazing is authorized for the attachment of neckrings and footrings which can be non-stress elements and only for the tops and bottoms of cylinders getting a provider strain of 500 psig or significantly less.

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