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API RP 1107 PDF

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A P I RP*lJl 91 0 7 3 2 2 9 0 b Pipeline Maintenance Welding Practices API RECOMMENDED PRACTICE THIRD EDITION, APRIL API RP pdf - Download as PDF File .pdf), Text File .txt) or read online. API RP PIPELINE MAINTENANCE WELDING PRACTICES. Details. Price (USD). Secure PDF. Single User. $ Details and Buy · API RP .


Api Rp 1107 Pdf

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API RP [ Withdrawn ]. Pipeline $; Add to Cart. Printed Edition + PDF; Immediate download; $; Add to Cart API Std DEVELOPMENT OF A SAFETY AND ENVIRONMENTAL RP , Pipeline Maintenance Welding Practices API Publ · development of a. Find the most up-to-date version of API RP at Engineering

Springer-Verlag New York, Inc. Syentek, Inc. Technology International, Inc. T H Hill Associates, Inc. Technical Indexes, Ltd. Telecommunications Industry Association TP: Technology Perspectives TPI: Trans Tech Publications Inc. Tyrell Press, Ltd. International Union of Railways UL: UL ULC: United Nations UNI: The U. Verband der Automobilindustrie VDE: Welding Consultants, Inc. World Scientific Publishing Co.

API RP 1107

Yakuji Nippo. Complete Document. Includes all amendments and changes through Errata , March Detail Summary View all details.

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Investor Relations. All Rights Reserved. Update Cart. Offshore structures — Design and construction — Standards. Recommended practice for planning, gp, and constructing heliports for fixed offshore platforms. Cancel Forgot your password? Finding libraries that hold this apii Reviews User-contributed reviews Add a review and share your thoughts with other readers. The E-mail Address es you entered is are not in a valid format.

Please create a new list with a new name; move some items to a new or existing list; or delete some items. Your request to send this item has been completed. Write a review Rate this item: Drilling platforms — Design and construction — Standards. API recommended practice for planning, designing, and constructing heliports for fixed offshore platforms. Similar Items Related Subjects: Citations are based on reference standards. The specimen may be flattened at room temperature. The specimen may be machinecut to a.!

For each weld soundness. The use of optic devices or dye penetrating specimen, at least one face of each cross section is to be materials is not necessary. Nick-break should show that it is completely fused at the root andfree of specimens used for this purpose are to be examined before cracks.

API RP 1107

The fillet weld should have leg lengths that are at they are nicked. Smooth and etchat least one face of eachweld specimen crosssection with suitableetchant to give a clear definition to the weld structure.

The welder qualification test is meant to determine whether a welder has the ability to make sound welds using a previously qualified welding procedure. Before any main- 3. The essential variables associated tice. Welder qualificationfor circumferential butt welds shall with maintenance welding procedure qualification and be in accordance with API Standard Before starting the qualification tests, the 3.

The welder is to use the same welding technique and to proceed with the same speed that If any of the following essential variables occur, the he will use if he passes the test and is permitted to weld. The welder using the new procedure is to be requalified.

This test positionqualifies the welder forall positions. Tests may be performed in other positions which will qualify the welder forthat position only. A change from one welding process or combination of 3. Each tensile-test specimen should meet the acceptance cri- b.

Re: Engineering Standards Collection

A change in the direction of welding from vertical up to teria for tensile tests, which are provided in 2. If any vertical down or vice versa. A change in the filler metal classification from either fied. A change in the diameter group. A provided in 2.

A change in the nominal material wall thickness from one group to another. Some suggested thickness groups are as follows: Undercutting adjacent to thefinal bead on theoutside of the pipe should not exceed a depth of.

Failure to meet these require- ments is sufficient cause for eliminating additional testing. The type and minimum number of specimens are given in Table 3. Before testing, test speci- mens are to be air cooled to ambient temperature. The ten- Note: If any bend-test specimen shows defects exceeding those allowed by the acceptance criteria for root- and face-bend 3. It should be noted, though, If, in the opinion of the company, thefailure of a welder to that a weld in high-test pipe M I Specification 5L,Grades pass the test was because of unavoidable conditions or con- X42 and above may not bend to the full U shape.

A weld in ditions beyond his control, the weldermaybe given a second high-test pipe is considered acceptable if the cracked speci- opportunity to qualify. No further retests need to be given men is broken apart and its exposed surface meets the nick- until the wefder has submitted proof of subsequent welder break-test acceptance criteria in 2. If a bend-test specimen fails to meet these criteria and, in the opinion of the company representative, is notrepresenta- tive of the weld, the bend-test specimen may be replaced by 3.

A record is to be made of the tests given to each welder The welder is disqualified if the additional specimen also and of the detailed results of each test.

This record should be shows defects exceeding the specified limits. A welder may be required to requalify if there is a examined as described in 2. If any macro- question about his ability. All welders performing repair work shall be familiar with the safety precautions as- For the pipe welding to be in accordance with this recom- sociated with cutting and weldingon piping that contains or mended practice, the welding is to be performed by qualified has contained liquid petroleum or fuel gases.

The surfaces to be Particular consideration should be given to the fillet weld welded are to be smooth; uniform; and free of laminations, used to join a sleeve to a carrier pipe because the fillet weld tears, scale, slag, grease, paint, andother deleterious material is prone to underbead or delayed hydrogen cracking.

With which might adversely affect the welding. The joint design is welds on pressurized and flowing piping systems, success to be in accordance with the welding procedure to be used.

The use of low-hydrogen electrodes requires distribution of crude petroleum, petroleum products, or fuel that special attention be given to electrode care and handling gases, welders should consider aspects that affectsafety, requirements.

The cracking process is related to the hydro- such as operating pressure, flow conditions, and wall thick- gen absorbed by the hot weldment. Proper attention should be given to fit up and tothe car- sions conforming to the procedure specification. Weather conditions that would cause impairment include, but are not limited to, airborne moisture, blowing The offset between the abutting edges for groove welds sands, and high winds. Windshields may be used when prac- should not exceed inch 1.

To obtain this tical. The company representative decides if weather condi- alignment, devices should be used, or misaligned surfaces tions are suitable for welding.

The root opening,the space between the abutting surfaces, should besufficient to permit percent penetration. Joints 4. The are shown in Figures 13 through This is the suggested welding sequence; othersmay be followed at the discretion of the company. This is the suggested welding sequence; others may be followed at the discretionof the company. This is the suggested welding sequence; at the discretionof the company, others may be followed and cir- cumferential welds numbers3 and 4 need not be made.

This is the suggestedwelding sequence; othersmay be followed at the discretion of the company. When in operation, the fitting isat pipeline pressure. This is the suggestedwelding sequence; at the discretionof the company, others may be followed and cir- cumferential welds 3 and 4 need not be made. The welds shall meet The company has the right to inspect all of the welds by the standards provided in Section 6 of this recommended visual and nondestructive testing methods.

The inspection practice. The frequency of inspection shall be as specified bythe com- pany. The company should consider the size, the grade, the op- erating stress, the location of the piping, the fluid to be trans- 5.

One or more nondestructive test- A record of certified nondestructive testing personnel ing methods may be used in addition to visual inspection. Non- from further work at the discretion of the company.

Also, at theoptionof 5. In any event, re- with and their training in the specific inspection task they certification shall be required at least every 3 years. Their qualifications shall be acceptable to the com- pany, and documentation of these qualifications shall be re- tained bythe company and shall include, but not necessarily 5. The company shall havethe right to accept or reject any a. Education and experience.

API RP 2L-Helideck for Fix Offshore Platform-1996

The welder who makes a weld that c. Results of any qualification examinations. Surface porosity that occurs on any These standards of acceptability apply to the determina- weld pass and, in the opinion of the company, is excessive tion of the size and type of defects located by visual and non- shall be removed beforethe deposition of additional passes. While circumferential and longitudinal When measuring thesize of the radiographic indications that butt weldsshall meet the standards of acceptability set forth porosity produces, the maximum dimension of the indica- in API Standard , fillet welds shall meet the standardsof tions shall apply to thisacceptance standard.

Since nondestructive testing methodsgive limited indica- a.

The size of an individual pore exceeds inch 3. The size of an individual pore exceeds 25 percent of the a discontinuity may be detrimental to the weld.

The distribution of scattered porosity exceeds the concen- 6. Incomplete fusion shall be unacceptable when Cluster porosity occurring in the finish pass shall be unac- any of the following conditions exist: The length of an individual indication of incomplete fu- sion exceeds 1 inch The diameter of the cluster exceeds inch The total lengthof indications of incomplete fusionin any b.

The total accumulated length of cluster porosity in any continuous inch The total length of indications of incomplete fusion ex- c. I Fine Aligned three or more O 0- 4T -0 e.

The size of the gas pockefs is not drawn to scale; forthe proper dimensions, see 6. Figure 19"Maximum Distribution of Gas Pockets: The size of the gas pocketsis not drawn to scale; for the proper dimensions, see 6.

Figure Maximum Distribution of Gas Pockets: With the exception of these shallow crater cracks, no weld containing cracks, regardless of their Over 2 2 inch 0.

Undercutting adjacent to thecover or root bead shall of the pipe wall thickness, not exceed the limits specified in Table 4. The crack is less than 8 percent of the weld length. A complete repair procedure has been developed and Defects may not be repaired without prior company au- documented, The repair procedure shall include the follow- thorization. Method of exploration of the crack area. Method of crack removal.

Repair of Defects 3. Preheat and interpass heat requirement. Before any repairs are made, the defects shall be entirely 4.Francis E. The joint design is welds on pressurized and flowing piping systems, success to be in accordance with the welding procedure to be used. The company shall havethe right to accept or reject any a. In any event, re- with and their training in the specific inspection task they certification shall be required at least every 3 years.

See Paragraph 2.