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ASTM A252 - 10.pdf

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ASTM A252 - 10.pdf

Designation A252 − 10Standard Specification forWelded and Seamless Steel Pipe Piles1This standard is issued under the fixed designation A252; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers nominal average wall steelpipe piles of cylindrical shape and applies to pipe piles inwhich the steel cylinder acts as a permanent load-carryingmember, or as a shell to form cast-in-place concrete piles.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 The text of this specification contains notes and foot-notes that provide explanatory material. Such notes andfootnotes, excluding those in tables and figures, do not containany mandatory requirements.1.4 The following precautionary caveat pertains only to thetest method portion, Section 16 of this specification. Thisstandard does not purport to address all of the safety problems,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards2A370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA751 Test Methods, Practices, and Terminology for Chemi-cal Analysis of Steel ProductsA941 Terminology Relating to Steel, Stainless Steel, RelatedAlloys, and FerroalloysE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications3. Terminology3.1 Definitions3.1.1 Definitions of terms used in this specification shall bein accordance with Terminology A941.3.1.2 defectan imperfection of sufficient size or magnitudeto be cause for rejection.3.1.3 imperfectionany discontinuity or irregularity foundin the pipe.4. Ordering Information4.1 Orders for material under this specification shall containinformation concerning as many of the following items as arerequired to describe the desired material adequately4.1.1 Quantity feet or number of lengths,4.1.2 Name of material steel pipe piles,4.1.3 Method of manufacture seamless or welded,4.1.4 Grade Tables 1 and 2,4.1.5 Size outside diameter and nominal wall thickness,4.1.6 Lengths single random, double random, or uniformsee Section 13,4.1.7 End finish Section 15, and4.1.8 ASTM specification designation and year of issue,4.1.9 Location of purchaser’s inspection see 19.1, and4.1.10 Bar coding see 22.2.5. Materials and Manufacture5.1 The piles shall be made by the seamless, electricresistance welded, flash welded, or fusion welded process. Theseams of welded pipe piles shall be longitudinal, helical-butt,or helical-lap.NOTE 1For welded pipe piles, the weld should not fail when theproduct is properly fabricated and installed and subjected to its intendedend use.6. Process6.1 The steel shall be made by one or more of the followingprocesses open-hearth, basic-oxygen, or electric-furnace.7. Chemical Composition7.1 The steel shall contain no more than 0.050 phospho-rous.8. Heat Analysis8.1 Each heat analysis shall conform to the requirementspecified in 7.1. When requested by the purchaser, the appli-cable heat analyses shall be reported to the purchaser ro thepurchaser’s representative.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.09 on Carbon Steel Tubular Products.Current edition approved Oct. 1, 2010. Published November 2010. Originallyapproved in 1944. Last previous edition approved in 2007 as A252 – 982007.DOI 10.1520/A0252-10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standard’s Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1Copyright by ASTM Intl all rights reserved;9. Product Analysis9.1 Chemical analysis shall be in accordance with TestMethods, Practices, and Terminology A751.9.2 It shall be permissible for the purchaser to make productanalyses using samples from lots of pipe piles as followsPipe Size OutsideDiameter, in. mmNumber of Samples and Size of LotUnder 14 355.6 2 from 200 pipe or fraction thereof14 to 36, incl 355.6to 9142 from 100 pipe or fraction thereofOver 36 914 2 from 3000 ft 914 m or fraction thereofThe product analyses shall conform to the requirement in7.1.9.3 If the chemical compositions of both of the samplesrepresenting a lot fail to conform to the specified requirement,the lot shall be rejected or analyses of four additional samplesselected from the lot shall be made, and each shall conform tothe specified requirement. If the chemical composition of onlyone of the samples representing a lot fails to conform to thespecified requirement, the lot shall be rejected or analyses oftwo additional samples selected from the lot shall be made, andeach shall conform to the specified requirement.10. Tensile Requirements10.1 The material shall conform to the requirements as totensile properties prescribed in Tables 1 and 2.10.2 The yield point shall be determined by the drop of thebeam, by the halt in the gage of the testing machine, by the useof dividers, or by other approved methods. When a definiteyield point is not exhibited, the yield strength corresponding toa permanent offset of 0.2 of the gage length of the specimen,or to a total extension of 0.5 of the gage length under loadshall be determined.11. Weights Per Unit Length11.1 The weights per unit length for various sizes of pipepiles are listed in Table 3.11.2 For pipe pile sizes not listed in Table 3, the weight perunit length shall be calculated as followsW 5 10.69D 2 tt 1whereW weight per unit length, lb/ft,TABLE 1 Tensile RequirementsNOTE 1Where an ellipsis ... appears in this table, there is no requirement.Grade 1 Grade 2 Grade 3Tensile strength, min, psi MPa 50 000 345 60 000 415 66 000 455Yield point or yield strength, min, psi MPa 30 000 205 35 000 240 45 000 310Basic minimum elongation for nominal wall thicknesses5⁄16 in. 7.9 mm or moreElongation in 8 in. 203.2 mm, min, 18 14 . . .Elongation in 2 in. 50.8 mm, min, 30 25 20For nominal wall thicknesses less than5⁄16 in. 7.9 mm, the deduction fromthe basic minimum elongation in 2 in. 50.08 mm for each1⁄32 - in. 0.8 mmdecrease in nominal wall thickness below5⁄16 in. 7.9 mm, in percentage points1.50A1.25A1.0AATable 2 gives the computed minimum valuesTABLE 2 Calculated Minimum Elongation ValuesANominal Wall Thickness Elongation in 2 in. 50.8 mm, min, in. mm Grade 1 Grade 2 Grade 35⁄16 or 0.312 7.9 30.00 25.00 20.009⁄32 or 0.281 7.1 28.50 23.75 19.001⁄4 or 0.250 6.4 27.00 22.50 18.007⁄32 or 0.219 5.6 25.50 21.25 17.003⁄16 or 0.188 4.8 24.00 20.00 16.0011⁄64 or 0.172 4.4 23.25 19.50 15.505⁄32 or 0.156 4.0 22.50 18.75 15.009⁄64 or 0.141 3.6 21.75 18.25 14.501⁄8 or 0.125 3.2 21.00 17.50 14.007⁄64 or 0.109 2.8 20.25 16.75 13.50AThe above table gives the calculated minimum elongation values for various nominal wall thicknesses. Where the specified nominal wall thickness is intermediate to thoseshown above, the minimum elongation value shall be determined as followsGrade1 E 48t 15.002 E 40t 12.503 E 32t 10.00whereE elongation in 2 in., , andt specified nominal wall thickness, in.A252 − 102Copyright by ASTM Intl all rights reserved;D specified outside diameter, in., andt specified nominal wall thickness, in.12. Permissible Variations in Weights and Dimensions12.1 WeightEach length of pipe pile shall be weighedseparately and its weight shall not vary more than 15 over or5 under its theoretical weight, calculated using its length andits weight per unit length see Section 11.12.2 Outside DiameterThe outside diameter of pipe pilesshall not vary more than 61 from the specified outsidediameter.12.3 Wall ThicknessThe wall thickness at any point shallnot be more than 12.5 under the specified nominal wallthickness.NOTE 2The minimum permissible wall thickness on inspection isshown in Table X1.1 seeAppendix for various nominal wall thicknesses.13. Lengths13.1 Pipe piles shall be furnished in single random lengths,double random lengths, or in uniform lengths as specified inthe purchase order, in accordance with the following limitsSingle random lengths 16 to 25 ft 4.88 to 7.62 mm, inclDouble random lengths over 25 ft 7.62 m with a minimum averageof 35 ft 10.67 mUniform lengths length as specified with a permissiblevariation of 1 in.13.2 Lengths that have been spliced at the mill by weldingshall be acceptable as the equivalent of unspliced lengthsprovided tension test specimens cut from sample splicesconform to the tensile strength requirements prescribed inTables 1 and 2. The welding bead shall not be removed for thistest. Such specimens shall be made in accordance with theprovisions specified in Sections 16–18.14. Workmanship, Finish, and Appearance14.1 The finished pipe piles shall be reasonably straight andshall not contain imperfections in such number or of suchcharacter as to render the pipe unsuitable for pipe piles.14.2 Surface imperfections having a depth not in excess of25 of the specified nominal wall thickness shall be accept-able. It shall be permissible to establish the depth of suchimperfections by grinding or filing.14.3 Surface imperfections having a depth in excess of 25 of the specified nominal wall thickness shall be considered tobe defects. It shall be permissible for defects not deeper than331⁄3 of the specified nominal wall thickness to be repairedby welding, provided that the defect is completely removedprior to welding.15. Ends15.1 Pipe piles shall be furnished with plain ends. Unlessotherwise specified, pipe piles shall have either flame–cut ormachine–cut ends, with the burrs at the ends removed. Whereends are specified to be beveled, they shall be beveled to anangle of 30 5, −0, measured from a line drawn perpendicularto the axis of the pipe pile.16. Number of Tests16.1 One tension test shall be made on one length orfraction thereof of each size, or one piece of skelp representingeach lot of 200 lengths or fraction thereof of each size.16.2 A retest shall be allowed if the percentage of elonga-tion of any test tension specimen is less than that prescribed inTables 1 and 2 and any part of the fracture is more than3⁄4 in.19 mm from the center of the gage length for test specimenshaving a 2–in. 50 mm gage length, or is outside of the middlethird of the gage length for test specimens having an 8–in. 200mm gage length, as indicated by scribe scratches marked onthe specimen before testing. A retest shall also be allowed ifany part of the fracture is in an inside or outside surfaceimperfection.16.3 It shall be permissible to discard any test specimen thatshows defective machining or develops imperfections andsubstitute another test specimen.17. Retests17.1 If the results of the tension test representing any lot failto conform to the applicable requirements prescribed in Tables1 and 2, the lot shall be rejected or retested using twoadditional lengths from the lot, with each such test beingrequired to conform to such specified requirements.A252 − 103Copyright by ASTM Intl all rights reserved;TABLE 3 Common Sizes and Weights Per Unit LengthAOutside Diameter, in. Nominal Wall Thickness,in.BWeight per Unit Lengths,lb/ftCOutside Diameter, in.BNominal Wall Thickness,in.BWeight per Unit Lengths,lb/ftC6 0.134 8.40 12 0.134 17.000.141 8.83 0.141 17.870.156 9.75 0.150 19.000.164 10.23 0.164 20.750.172 10.72 0.172 21.750.179 22.628 0.141 11.85 0.188 23.740.172 14.39 0.203 25.600.219 27.5885⁄8 0.109 9.92 0.230 28.940.141 12.79 0.250 31.400.172 15.54 0.281 35.200.188 16.96 0.312 38.980.203 18.280.219 19.68 123⁄4 0.109 14.730.250 22.38 0.134 18.070.277 24.72 0.141 19.010.312 27.73 0.150 20.200.322 28.58 0.164 22.070.344 30.45 0.172 23.130.375 33.07 0.179 24.050.438 38.33 0.188 25.250.500 43.43 0.203 27.230.219 29.3410 0.109 11.53 0.230 30.780.120 12.67 0.250 33.410.134 14.13 0.281 37.460.141 14.86 0.312 41.480.150 15.79 0.330 43.810.164 17.24 0.344 45.620.172 18.07 0.375 49.610.179 18.79 0.438 57.650.188 19.72 0.500 65.480.203 21.260.219 22.90 14 0.134 19.860.230 24.02 0.141 20.890.250 26.06 0.150 22.210.164 24.26103⁄4 0.109 12.40 0.172 25.430.120 13.64 0.179 26.450.134 15.21 0.188 27.760.141 15.99 0.203 29.940.150 17.00 0.219 32.260.164 18.56 0.230 33.860.172 19.45 0.250 36.750.179 20.23 0.281 41.210.188 21.23 0.312 45.650.203 22.89 0.344 50.220.219 24.65 0.375 54.620.230 25.87 0.438 63.500.250 28.06 0.469 67.840.279 31.23 0.500 72.160.307 34.270.344 38.270.365 40.520.438 48.280.500 54.79A252 − 104Copyright by ASTM Intl all rights reserved;TABLE 3 ContinuedOutside Diameter, in. Nominal Wall Thickness,in.BWeight per Unit Lengths,lb/ftCOutside Diameter, in.BNominal Wall Thickness,in.BWeight per Unit Lengths,lb/ftC16 0.134 22.73 20 0.141 29.930.141 23.90 0.172 36.460.150 25.42 0.188 39.820.164 27.76 0.219 46.310.172 29.10 0.250 52.780.179 30.27 0.281 59.230.188 31.78 0.312 65.660.203 34.28 0.344 72.280.219 36.95 0.375 78.670.230 38.77 0.438 91.590.250 42.09 0.469 97.920.281 47.22 0.500 104.230.312 52.320.344 57.57 22 0.172 40.130.375 62.64 0.188 43.840.438 72.86 0.219 50.990.469 77.87 0.250 58.130.500 82.85 0.281 65.240.312 72.3418 0.141 26.92 0.375 86.690.172 32.78 0.438 100.960.188 35.80 0.469 107.950.219 41.63 0.500 114.920.230 43.690.250 47.44 24 0.172 43.810.281 53.23 0.188 47.860.312 58.99 0.219 55.670.344 64.93 0.250 63.470.375 70.65 0.281 71.250.438 82.23 0.312 79.010.469 87.89 0.375 94.710.500 93.54 0.438 110.320.469 117.980.500 125.62ASubject to agreement between the manufacturer and the purchaser, sizes and weights per unit length other than those listed shall be permitted.B1 in. 25.4 mmC1 lb/ft 1.49 kg/m.18. Test Specimens and Test Methods18.1 The tension test specimens and test methods shall be inaccordance with Test Methods and Definitions A370, espe-cially Annex A2.18.2 At the option of the manufacturer, the tension testspecimens shall be longitudinal or transverse strip testspecimens, with a gage length of 2 in. 50 mm or 8 in. 200mm, taken from the pipe or the skelp. Within their gagelength, longitudinal strip test specimens shall be nominally 11⁄2in. 38 mm wide, non-flattened, and with parallel sides.18.3 For welded pipe piles, the tension test specimens shallbe taken as follo

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