ASME BPVC IX 2010 PDF

Porosity and inclusions such as slag or tungsten are represented on the radiograph as rounded indications with a length three times the width or less. Qualification in the 4S position also qualifies for the IS position. The acceptance criteria shall be in accordance with that Section specifying impact requirements. In this case asmf fication of welders and welding operators within the com- panies of such an organization will not be required, all other requirements of Section IX are met.

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Porosity and inclusions such as slag or tungsten are represented on the radiograph as rounded indications with a length three times the width or less. Qualification in the 4S position also qualifies for the IS position. The acceptance criteria shall be in accordance with that Section specifying impact requirements. In this case asmf fication of welders and welding operators within the com- panies of such an organization will not be required, all other requirements of Section IX are met.

When jx are to be made between base metals from two different groups, a procedure qualification must be made for the applicable combination of base met- als, even though procedure qualification tests have been made assme each of the two base metals welded to itself.

Accordingly, even though the variables shown in table QW provide toler- ances on many welding variables, the WPS shall specify the same specific variables shown on the PQR with tolerance shown for no more than one variable e. Manual and semiautomatic GTAW and PAW are prohibited, except for zsme root pass of groove welds made from one side and as described for making repairs to temper bead bovc in QW Transverse side-bend test specimens shall conform to the dimensions shown in figure QW No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher.

The specifications for materials given in Section II are identical with or similar to those of specifications published by ASTM, AWS, and other recognized national or interna- tional organizations. The variables for the buttering and for the i weld shall be in accordance with QW, except that QW The acceptance criteria shall be in accordance with that Section requiring drop weight tests.

Refer to figure QW This test coupon shall be cut transverse to the length of the weld into ten pieces, each approximately 1 in. This code does not address other safety issues relat- ing to the construction of boilers, pressure vessels, transport tanks and nuclear components, and the inservice inspection of nuclear components and transport tanks. Two or more welders or welding opera- tors, each using the same or a different welding process, may be qualified in combination in a single test coupon.

Successful test restores the qualification. Increments shall be not greater than 0. The Boiler and Pressure Vessel Committee in the formu- lation of its rules and in the establishment of maximum design and operating pressures considers materials, con- struction, methods of fabrication, inspection, and safety devices.

QW Flash Welding Flash welding shall be limited to automatic electrical resistance flash amse. For other metals, the failure strength shall not be less than half of the minimum specified tensile strength of the stud material.

Changes beyond which requalifica- tion is required are given in QW for welders and in QW for welding operators. Longitudinal- bend tests may be used in lieu of the transverse side-bend, face-bend, and root-bend tests for testing weld metal or base metal combinations, which differ markedly in bending properties between a the two base metals, or b the weld metal and the base metal QW- The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate.

When qualifying pipe-to-shape in the 5F posi- tion, the blvc specimen shall be removed from the lower 90 deg section of the mockup. The equipment used for stud welding shall be completely auto- matic except for manual starting. Usage is limited to those materials and grades adopted by at least one of the other Sections of the Code for applica- tion under rules of that Section. Where a combination of welding processes is required to make a weldment, each welder shall be qualified for the particular welding process or processes he will be required to use in production welding.

This may permit, depending on the particular construction Code requirements, a manufacturer or con- tractor to use other filler metals that fall within that particu- lar F-Number where, prior to the Code revision, the manufacturer or contractor was limited to the particular electrode classification that was used during qualification. Automated vertical gas metal-arc welding for vertical position only.

Added a nonmandatory appendix to discuss new and existing procedure qualifications using waveform con- trolled power sources. In order to pass the peel test and macro-examination, the dimensions of the fusion zone averaged and the penetration averaged shall be within the range of dimensions of those specified on the WPS that was used to make the test coupon.

The testing procedures shall follow the rules of this paragraph. Pipe coupons shall be visually examined per QW over the entire circumference, inside and outside. Revisions, except for revisions to material specifications in Section II, Parts A and B, become mandatory six months after such date of issuance, except for boilers or pressure vessels contracted for prior to the end of the six-month period.

In general, notch-toughness requirements are mandatory for all P-No. It is permissible, however, to subcontract any or all of the work of preparation of test materials for weld- ing and subsequent work on the preparation of test speci- mens from the completed weldments, performance of nondestructive examination and mechanical tests, provided the manufacturer, contractor, assembler, or installer accepts full responsibility for any such work.

The welding variables of QW shall apply except for those regarding base metal or weld metal thickness. When the melt-in technique is used for joining P-No. For pipe having an outside diameter of 3 in. TOP Related Posts.

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Goltizil A welder qualified to weld in accordance with one quali- fied WPS is also qualified to adme in accordance with other qualified WPSs, using the same welding process, within the limits of the essential variables of QW The specifications for materials given in Section II are identical with or similar to those of specifications published by ASTM, AWS, and other recognized national or interna- tional organizations. The radiographic examination in Bovc for welders and in QW for welding opera- tors shall meet the requirements of Article 2, Section V, except as follows: Rudolph — Hawaii M. Those cross sections shall be smoothed and etched with a suitable etchant see QW to give a clear definition of the weld pbvc and heat affected zone. Eastman — Newfoundland and Labrador, Canada C. WPS qualified on groove welds shall be applicable for production welds between dissimilar base metal thicknesses provided: For this dem- onstration, each welder shall deposit two or more weld beads using WPS parameters for each deposit layer. Edsall, Honorary Member G. Double- welded groove welds are considered welding with backing.

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