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Petroleum and natural gas industries Steel pipe for pipelines Technical delivery conditions Part 3: Pipes of requirement class C Industries du ptrole et du gaz naturel Tubes en acier pour le transport des fluides combustibles Conditions techniques de livraison Partie 3: Tubes de la classe de prescription C. Contents 1 Scope ISO All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher.
The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Together with the other parts, this part of ISO cancels and replaces ISO , which has been technically revised. ISO consists of the following parts, under the general title Petroleum and natural gas industries Steel pipe for pipelines Technical delivery conditions:.
Annex A is for information only. Introduction In the preparation of ISO , the committee responsible was unanimous in seeking to avoid specifying the quality level of line pipe to be used for a particular application.
However, the committee recognized that there are several broad quality levels commonly used, and has differentiated between these quality levels as follows. This is designated requirement class A and is considered in ISO Secondly, many purchasers impose requirements different from or additional to the basic standard, for instance concerning toughness and non-destructive testing.
This approach is common, for example, for transmission pipelines. Such overall enhanced requirements are addressed in requirement class B and are considered in ISO Thirdly, there are certain particularly demanding applications, such as sour service, offshore service, and lowtemperature service, where very stringent requirements are imposed.
Such requirements are reflected in requirement class C and are considered in this part of ISO For toughness properties, ISO offers a choice of requirement modules which correspond to concepts for avoidance of either brittle fracture or long-running shear fracture. The drop-weight tear test is part of those requirement modules which are considered typical for gas lines. The Charpy energy requirements to avoid long-running shear fracture have been derived from established data in accordance with EPRG recommendations  for pipelines transporting lean, dry natural gas.
It is recognized that rich gas or two-phase fluids may require enhanced toughness properties which can only be determined case by case. For pipes of this requirement class C, a weld efficiency factor of 1,0 may be used in pipeline design calculations because of the conditions specified for the manufacture of the pipes and for the testing of the seam welds. The selection of the requirement class depends on many factors. The properties of the fluid to be conveyed, the service conditions, the design code and any statutory requirements should all be taken into consideration.
It is therefore the ultimate responsibility of the user to select the appropriate requirement class for the intended application. In some areas of application, the absence of a single international pipeline design standard has resulted in differing national regulations imposing conflicting requirements on users, thus making technical harmonization difficult.
Consequently, it may be necessary to amend certain requirements of this part of ISO to satisfy various national design codes. However, this part of ISO remains the basic reference document and such amendments should be specified at the time of enquiry and order.
See for example the note to 8. Petroleum and natural gas industries Steel pipe for pipelines Technical delivery conditions Part 3: Pipes of requirement class C. This part of ISO is not suitable for cast steel pipes. The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard.
For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. ISO , Steel and steel products Location and preparation of samples and test pieces for mechanical testing.
ISO , Steel and steel products General technical delivery requirements. ISO , Radiographic image quality indicators for non-destructive testing Principles and identification. ISO , Steels Classification Part 1: Classification of steels into unalloyed and alloy steels based on chemical composition.
ISO , Steels Classification Part 2: Classification of steels into unalloyed and alloy steels according to main quality classes and main property or application characteristics. ISO , Metallic materials Tensile testing. ISO , Steel products Definitions and classification. ISO , Metallic materials Bend test. ISO , Corrosion of metals and alloys Stress corrosion testing Part 2: Preparation and use of bentbeam specimens. ISO , Preparation of steel substrates before application of paints and related products Visual assessment of surface cleanliness Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings.
ISO , Seamless and welded except submerged arc-welded steel tubes for pressure purposes Full peripheral ultrasonic testing for the detection of longitudinal imperfections. ISO , Seamless and welded except submerged arc-welded steel tubes for pressure purposes Eddy current testing for the detection of imperfections.
ISO , Seamless steel tubes for pressure purposes Full peripheral ultrasonic testing for the detection of transverse imperfections. ISO , Electric resistance and induction welded steel tubes for pressure purposes Ultrasonic testing of the weld seam for the detection of longitudinal imperfections.
ISO , Seamless and welded except submerged arc-welded steel tubes for pressure purposes Ultrasonic testing for the detection of laminar imperfections. ISO , Seamless and hot stretch-reduced welded steel tubes for pressure purposes Full peripheral ultrasonic thickness testing. ISO , Steel and steel products Inspection documents. ISO , Seamless and welded steel tubes for pressure purposes Ultrasonic testing of tube ends for the detection of laminar imperfections.
ISO , Submerged arc-welded steel tubes for pressure purposes Radiographic testing of longitudinal and spiral welds for the detection of imperfections. ISO , Metallic materials Unified method of test for the determination of quasistatic fracture toughness. ISO , Welded steel tubes for pressure purposes Ultrasonic testing of the area adjacent to the weld seam for the detection of laminar imperfections.
ISO , Magnetic particle inspection of tube ends of seamless and welded ferromagnetic steel tubes for the detection of laminar imperfections. ISO , Magnetic particle inspection of the tube body of seamless and welded ferromagnetic steel tubes for the detection of surface imperfections.
ISO , Steel and iron Sampling and preparation of samples for the determination of chemical composition. ASME Sect. EN , Specification and approval of procedures for welding metallic materials Part 3: Welding procedure tests for the arc welding of steel.
NACE TM , Standard test method Evaluation of pipeline steels and pressure vessel steels for resistance to hydrogen-induced cracking. The terms and definitions in 3. NOTE At least one pass is made on the inside and at least one pass on the outside of the pipe. A single pass tack weld prior to the deposition of the submerged arc-weld metal is permitted see 6. The abbreviated form of this delivery condition is N.
The abbreviated form of this delivery condition is M. NOTE 3 Thermomechanical forming leading to the delivery condition M may include processes of increased cooling rates without or with tempering, including self-tempering but excluding definitively direct quenching and quenching and tempering. NOTE 2 Tempering implies heating to a specific temperature below the lower transformation temperature Ac 1 one or more times or holding this temperature, followed by cooling at an appropriate rate so that the structure is modified and the specified properties are achieved.
In the steel name designations N, Q and M refer to the treatment condition given in 3. The additional letter S shall be added as a suffix to the steel name for sour service material to distinguish it from non-sour service material.
The need for additional information or the options required shall be clearly indicated at the enquiry stage and stated in the order and in the confirmation of the order. NOTE The parts of clauses or tables covering items listed in 5. Optional agreement: option which may be agreed O 1 2 3 4 alternative casting method for material for welded pipe see 6. For information: Pipe is designated for subsequent external three-layer extruded polyethylene-based coating.
For information: Pipe is designated for subsequent external fusion-bonded epoxy coating. Verification of the manufacturing procedure may be by the provision of available data or by qualification in accordance with annex B. For sour-service material, vacuum degassing or alternative processes should be applied. The material may be treated for inclusion shape control to increase resistance to hydrogen-induced blistering and stepwise cracking HIC.
The type of pipe and the type of heat treatment as given in the steel name shall be specified by the purchaser. Where the process of cold finishing is used, this shall be stated in the inspection document. O Alternative casting methods when proposed shall be subject to agreement. Where HFW pipe for sour service is produced from strip, the abutting edges should be milled or machined before welding.
Plates shall be visually examined after rolling and shall be examined ultrasonically for laminar imperfections in accordance with annex D. The timing of this ultrasonic examination may be either before or after cutting the plate, at the manufacturers discretion. Strips used for SAWL pipe manufacture shall be treated in the same way. Strip used for the manufacture of HFW and SAWH pipe shall be examined visually and ultrasonically for laminar imperfections in accordance with annex D at an appropriate stage, either before or during the pipe-making process.
Alternatively, if the pipe manufacturer of HFW and SAWH pipe is able to carry out full-body inspection of the completed pipe body, including the ultrasonic test, the testing may be deferred to that stage. Strip used for the manufacture of SAWH pipe shall be of width not less than 0,8 times nor more than 3,0 times the pipe outside diameter.
In the manufacture of SAWL and SAWH pipe, any lubricant which contaminates the weld bevel or the surrounding area shall be removed before welding begins. Intermittent tack welding of the SAWL groove shall not be permitted, unless the manufacturer furnishes data to demonstrate for the approval of the purchaser that the specified properties are obtained at both the tack weld and intermediate positions.
Other types of pipe may be sized to their final dimensions by expanding or reducing. This shall not produce excessive permanent strain. In cases where no further heat treatment or only a heat treatment of the weld area is carried out, the sizing ratio sr shall not exceed 0, By agreement, for helically welded pipe made from plate, it is permissible to deliver pipes containing plate O end welds [see Figure 3 c ] providing such welds are located at least mm from the pipe end.
However, the plate end weld shall be subject to the same non-destructive testing required for plate edges and welds in accordance with D. NOTE Table 19 gives a survey of the tables and clauses covering requirements and on the specifications for testing.
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Savoy Piping Inc. The grade indicates the testing methods required for a given application. It is critical that structural grades of Carbon Steel Pipe not be used for Pressure or Fluid applications. Seamless ISO Pipe for dependable transmission of oil and gas to any type of collection and distribution point This International Standard specifies requirements for the manufacture of two product specification levels PSL 1 and PSL 2 of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries. This International Standard is not applicable to cast pipe. The purpose of this specification is to provide standards for pipe suitable for use in conveying gas, and oil in both the oil and natural gas industries Grades covered by this specification are L, L, L, L, L, L etc.
ISO 3183 Vs API 5L
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BS ISO 3183-3:1999
Petroleum and natural gas industries Steel pipe for pipelines Technical delivery conditions Part 3: Pipes of requirement class C Industries du ptrole et du gaz naturel Tubes en acier pour le transport des fluides combustibles Conditions techniques de livraison Partie 3: Tubes de la classe de prescription C. Contents 1 Scope ISO All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.