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Nov, 10. 2410 2: 14PM T key Industrial No, 1926 P. 2
<br /> Grm* nelkill
<br /> comparative specification data
<br /> Specification A53 NPS'is—28 STD,XS and XXS,ANSI Schedules 10 through 160 F
<br /> Scope Coven;Seamless and Weidad,Black and hot-ripped gahtanited nominal(average)wall pipe tar colt,bending,flanging and
<br /> other special purposes and is suitable for Atidir,g.Continuous-Wedad OR is not attended for flanging.Purpose for whiob pipe
<br /> is intended should be stated on order. i
<br /> Kinds of Steel Open-hearth Basic-Oxygen
<br /> __,.
<br /> Permitted For Electric-fumace
<br /> Pipe Material
<br /> Hot-DI �
<br /> ppad Sets standards for gating of pipe with zinc inside and outside by the fid-dipped process.Weight of coating must not average
<br /> \ Galvanizing less than 1.8 oz per square toot and not Rise than 1,8 oz.por square foot
<br /> Permissible The minimum wail thickness at any point shall not be more than 12$%under the nominal wall thickness spefdiied.
<br /> Variations in
<br /> Wall Thicimeas
<br /> Chemical C max% Ntir>J x% P max% S max as
<br /> Requirements Seamless or ERW
<br /> Grade A 0.25 DA5 0,05 0.06
<br /> Grade 8 0.30 1.20 0.05 0,06
<br /> Continuous-weld — — 0.08 0,06
<br /> Tensile Continuous Seamless and Eleetric-
<br /> RegUlrementsWelded reslstanoe-welded
<br /> Grade A Grade z
<br /> Tensile Strength,min.,psi ...........................45,000 :8,000 60,000
<br /> Yield Strength,min„psi ...,,,._. ...,......_......,25,000 30,000 35,000
<br /> Hydrostado Hydrostatic inspection Fest pressuros for plain end and threaded and coupled pipe are specified.Hydrostatic pressure shall be '
<br /> Testing malrttained for not fess than 5 seconds for all sizes of seamless and electric resistance•weid pipe.
<br /> Permissible Pius or Minus 10%
<br /> Vartatlons in
<br /> Weights per Foot
<br /> Permisslble Outside Diameter at any point shalll not vary from standard spec f ed more than—
<br /> Variations In For NPS 11h*0 ftft 54% For NPS 2 and Larger Sizes
<br /> Outside Diameter liar over life ur+dw 1%over 1%under
<br /> Mechanical Tests Tensile Test—Transverse requ0ed on ERW for NPS 8 and larger.
<br /> Spocifted Bending Test(Cold)—STD aro XS-NPS 2 and under XXS-NPS 11n and under,
<br /> Degree of Bend Qllam#tgr of Mandrel
<br /> For Normal A53 Uses 90 12 x nom.dia.of pipe
<br /> For Close Coiling 180 0 x nom.dia.of pipe
<br /> Flattening Test—NPS 2 and larger STD and XS.(Not required lot XXS pipe).
<br /> Number of Seamless and Electric-Resistance•Welcded—Bending,flattenarg,tensile on one length of p+pe from each lot of 500 leng#13
<br /> 'tests Required or less of a sue.
<br /> Continuous-Weld—Bending,Fattening,tensile. NPS 1 W 3 smaller NPS 2 S larger
<br /> Lengths, Standard Weight _
<br /> one/25 tons one/50 tons
<br /> Single Random— 16'-22'.5%may be pintces.11 Plain Ends—5%may be i2'-16.
<br /> Double Random—Shortest 4_ength 221,minimum average for order 35'.
<br /> Extra Strong&Double Extra Strong
<br /> Single Random—12'•22.5%may be ti'-12',
<br /> Double Random(XS and tighter)—Shortest Length 22',m;r;mum average for order 35'.
<br /> Lengths lonW than single random with wail thicknesses heavier than XS subject to negotiation.
<br /> ur Rolled,Stamped or Stenciled(Mfgr8•option)
<br /> on Each Length Name or brand of manufacturer.
<br /> Tags an 1 t`z'and Kod of pipe,that is,Continuous Welded Electric-Rasistanre V ts!dad A,Electric-Resistance-Welded 6,Seamless A;w
<br /> smaller.(On Tags Seamless 8;XS for extra strong.XXS Icy double extra strong.
<br /> Wwhed io each ASTra A 53.
<br /> Bundle in case of Length of pipe.
<br /> General Couplings—Applied handling:fight Couplings,2'and smaller straight tapped,otter sizes taper tapped.
<br /> Information Thread Protection—Applied to pipe 4'and larger.
<br /> End Finish lura ess otherwise specified)—STD or XS,or v&I thii„knesses less than 0.500 in,(excluding XXS):Plain end ,
<br /> beveled.Ali XXS and wall thicknesses over 0.500 in,;Plain and square cut `C
<br /> NOTE;This general information is from ASTM Standards and API Specr`rcation 5L.
<br /> Please refer to the specific Standard or Specification for complete details.
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