EN 10208-2 PDF
Find the most up-to-date version of DIN EN at Engineering BS EN Steel pipes for pipelines for combustible fluids – Technical delivery conditions Part 2: Pipes of requirement class B. BS EN ICS NO COPYING WITHOUT BSI PERMISSION It supersedes BS EN which is withdrawn.
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It supersedes BS EN A list of organizations represented on this committee can be obtained 1020-82 request to its secretary. This publication does not purport to include all the necessary provisions of a contract.
Users are responsible for its correct application.
Compliance with a British Standard cannot confer immunity from legal obligations. Wn of requirement class B Tubes en acier pour conduites de fluides combustibles – Conditions techniques de livraison – Partie 2: Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member.
A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to 1020-82 CEN Management Centre has the same status as the official 1208-2.
E BS EN This European Standard shall be given the status of a national standard, either by publication of an 10208-22 text or by endorsement, at the latest by Septemberand conflicting national standards shall be with- drawn at the latest by September Attention is drawn to the possibility that some of the 10208-22 of this document may be the subject of patent rights.
This document supersedes EN Pipes of requirement class A Part 2: However, 01208-2 was recognized that there are several quality levels commonly used, and it was decided to reflect these in the standard by the differentiation between two quality levels.
Firstly, the need was recognized to provide a basic quality level. This is designated requirement dn A and considered in EN Secondly, many purchasers impose requirements additional to the basic standard, for instance concerning toughness and non-destructive inspection.
This approach is common, for 102082- for transmission pipelines. 10208- enhanced requirements are addressed in requirement class B and considered in EN For offshore applications and other applications outside the scope of EN and ENother standards may be applicable, e.
Ej Charpy impact energy requirements in this document have been derived from established data, in accor- dance with EPRG recommendations , and are intended to prevent the occurrence of long running shear fracture in pipelines transporting clean, dry natural gas.
It is the responsibility of the designer to decide whether these energy requirements suffice for the intended application. For example, rich gas or two-phase fluids may require additional testing to be carried out.
For pipes of requirement class B, a weld efficiency factor of 1,0 can be used in design calculations, due to the conditions specified for the manufacture of the pipes and for the testing of the tubes. The selection enn the requirement class depends on many factors: Therefore this document gives no detailed guidelines.
It is the ultimate responsibility of the user to select the appropriate requirement class for the intended application. NOTE This document combines a wide range of product types, 102082- and technical restrictions in accordance with the functional requirements for gas supply systems referred to in EN . It includes more stringent quality and testing requirements than those in EN This standard specifies products with the same and additional strength levels and partly similar but not identical requirements as EN and EN and is with two additional annexes specifying deviating or addi- tional requirements also published as API Spec 5L .
For dated refer- een, only the edition cited applies. For undated references, the latest edition of the referenced document including any amendments applies. General guidance for arc welding ENWelding — Recommendations for welding of metallic materials — Part 2: Method of test at ambient temperature EN Steel names ENDesignation systems for steels — Part 2: Test method EN Automatic eddy current testing of seamless and welded except submerged arc welded steel tubes for the detection of imperfections BS EN Automatic full peripheral ultrasonic testing of seamless and welded except submerged arc welded steel tubes for the detection of longitudinal imperfections ENNon-destructive testing of steel tubes — Part 8: Automatic ultrasonic testing of the weld wn of electric welded steel tubes for the detection of longitudinal imperfections ENNon-destructive testing of steel tubes — Part 10208- Radiographic testing of the weld seam of automatic fusion arc welded steel tubes for the detection of imperfections ENNon-destructive testing of steel tubes — Part Automatic ultrasonic testing of seamless and welded except submerged arc-welded steel tubes for the detection of laminar imperfections ENNon-destructive testing of steel tubes fn Part Automatic ultrasonic testing of the wn adjacent to the weld seam of welded steel tubes for the detection of laminar imperfections ENNon-destructive testing of steel tubes — Part Ultrasonic testing of tube ends of seamless and welded steel tubes for the detection of 102008-2 imperfections ENNon-destructive testing of steel tubes — Qualification and competence of level 1 and 2 non- destructive testing personnel EN Carbon and low alloy steels ISO Test method ISO NOTE 2 The abbreviated form of this delivery condition is M included, where applicable, in the steel name.
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 4 As a consequence of lower carbon content and carbon equivalent values, material in the delivery condition M has improved weldability properties. NOTE 2 The abbreviated form of this delivery condition is Q in this document, included in the steel name.
BS EN Steel pipes for Pipelines for Combustible Fluids – MBA智库文档
D specified outside diameter; Dmin specified minimum outside diameter; T specified wall thickness; Tmin specified minimum wall thickness. Their classification in accordance with EN is indicated in Table 1. The correspond- ing steel numbers have been allocated in accordance with EN If the purchaser does not indi- cate a wish to implement any of these options at the time of enquiry and order, the pipe shall be supplied in accordance with the basic specification see 6.
EXAMPLE 10 m longitudinally submerged arc welded pipe with an outside diameter of mm, a wall thickness of 12,5 mm in a length according to random length group r2 see Table 12made of steel grade LMB, impact proper- ties in accordance with Table 7, with drop weight tear DWT tests and inspection certificate 3.
An approval of the quality system may be agreed.
PN-EN ,2 ||| Steel pipes for pipelines for combustible fluids
In special cases, the verification of the manufacturing procedure either by available data or in accordance with Annex A may also be agreed. Other equivalent steelmaking processes may be used by agreement. The type of pipe and the type of heat treatment as given in the steel name shall be specified by the purchaser.
SAWH pipes shall be manufactured using strip with a width not less than 0,8 or more than 3,0 times the pipe outside diameter. SAWL pipe may be manufactured with two seams by agreement. This shall not produce excessive permanent strain. Where no further heat treatment or only a heat treatment em the weld area is carried out, the sizing ratio sr achieved by this cold working shall not exceed 0, It shall be calculated according to the for- mula: Where accepted, the strip end weld shall be located at least mm from the pipe end.
The qualification shall be in accordance with EN or, at least, an equivalent to it. It is recommended that the level 10208-22 personnel be certified in accordance to EN or, at least an equivalent to it. The operating authorization issued by the employer shall be in accordance with a written procedure.
102082 The definition of level 1, 2 and 3 can be found in appropriate standards, e. EN and EN NOTE Table 17 gives a survey on the tables and clauses containing requirements and specifications for testing. Steels for seamless and welded pipes LNB 1. For grades with values higher than 0,43 a max. CEV of 0,43 may be agreed. The purchaser shall state, at the time of enquiry and order, which impact energy requirements, depending on the safety factor to be used, shall apply.
Where appropriate, the purchaser should contact the manufacturer for more detailed information. NOTE 2 The impact requirements in Tables 6 and 7 have been determined using among other parameters a safety factor.
BS EN 10208-2:2009
The safety factors 1,4 and 1,6 have been chosen as typical examples in the range of commonly used safety fac- tors. Diameter of the mandrel for bend test e see 9. They cannot be required for the starting material. 102082 longitudinal specimens are tested see Table nethe values of elongation shall be 2 units higher.
For sub-size test pieces, see 9. The impact requirements do not apply for the heat affected zone HAZ. However, account should be taken of the fact that the behaviour of the steel during and after welding is de- pendent not only on the steel, but also on the welding consumables used and on the conditions of preparing for and carrying out the welding. In the case of weld tests, the details for carrying out the tests and the acceptance criteria are also to be agreed.
The surface condition shall be such that any surface imperfections requiring dress- ing can be identified. These limits refer to the gap between the extreme 102088-2 of the deviation and the prolongation of the normal contour of 12008-2 pipe.
For the measurement of flat spots and peaks see 9.
For dents, the length in any direction shall not ex- ceed one half of the pipe outside diameter. The tube thickness in the dressed area shall not be less than the specified minimum wall thickness. All dressed areas shall blend smoothly into the contour of the tube. However, the mass tolerance in 8. The out-of-squareness see Figure 1 shall not exceed: Other bevel preparations may be agreed.
Where internal machining or grinding is carried out, the angle of the internal taper, measured from the longitu- dinal axis, shall be not greater than: When trimming, the wall thick- ness shall not be reduced below the minimum specified.
The depth of groove resulting from trimming the internal flash of HFW pipe shall not undercut the contour of the pipe 10208–2 more than that given in Table The height of the weld bead of the remainder of the pipe shall not exceed the applicable value given in Table The purchaser shall specify the required type of inspection document 3.
If an inspection certificate 3.