Plain end line pipe 2" (inch) Thickness 4,8 mm
According to API 5L
image/svg+xml60,3 mm4,8 mm(0.188 in)(2.375 in)
Pipe Finishes Tolerances4,8> to 87.5 % of tASME B 16.25
Other Finishes
4,8> to 87.5 % of ta)
4,8> to 87.5 % of tb)

a) beveled to an angle of 30°
b) square cut

Inside diameter1.999 in (50,7 mm)Weight4.4 lb/ft (6,57 kg/m)Paint Surface0.189 m2Estimated Price31.21 $US per meter
Minimum test pressure
Alternative (bar)172.0172.0346.0379.0429.0461.0494.0500.0500.0500.0
Standard (bar)172.0172.0207.0207.0207.0207.0207.0207.0207.0207.0
gradeABX42X46X52X56X60X65X70X80
Grades Usage
TypeGradeSeamlessWelded without filler metalWelded with filler metalUsage
PSL 1A & BxxxGeneral
PSL 142 through X70xxxPipelines
PSL 2B through X80xxxPipelines
Other Pipe Material & Grades Usage
N° ASTMCarbon steelAlloy steelSeamlessWeldedUsage
A 53x xxGeneral
A 106x x High temperature
A 179x x Exchanger
A 209 xx Boiler
A 213 xx Boiler
A 333xxxxLow temperature
A 335 xx High temperature
A 671xx xAtmospheric and lower temperature
A 672xx xModerate temperature
A 691xx xHigh temperature

API 5L specification

Specification for seamless and welded steel line pipe manufactured according two products levels PSL1 / PSL2.

PROCESS OF MANUFACTURE – TYPES OF PIPE

Seamless pipe manufactured by hot working steel or if necessary by subsequently cold finishing the hot worked

Electric welded pipe having one longitudinal seam formed by electric resistance welding or electric induction welding without the addition of filler metal.

Welded pipe with one longitudinal seam formed by Laser welding process.

Longitudinal seam submerged arc welded pipe : pipe having arc longitudinal seam produced by automatic submerged arc welding process. At least one pass shall be made on the inside and at least one pass on the outside (pipe also known as SAW pipe).

Gas metal arc welded pipe having one longitudinal seam formed by continuous gas metal arc welding (MIG).

At least one pass shall be made on the inside and at least one pass on the outside.

Combination gas metal arc weld and submerged arc weld pipe having one longitudinal seam formed by the combination of continuous gas metal arc welding and automatic submerged arc welding. Double seam submerged-arc welded pipe having two longitudinal seams produced by the automatic submerged–arc welding process .

Double seam gas metal-arc welded pipe having two longitudinal seams produced by the gas metal-arc welding

Double seam combination gas-metal arc and submerged-arc welded pipe having two longitudinal seams produced by a combination of the submerged arc welding process and the gas metal-arc welding process.

Helical seam submerged-arc welded pipe having one helical seam produced by the automatic submerged-arc welding process (pipe also known as spiral weld pipe).

Pipe shall be either non-expanded or cold-expanded at the option of the manufacturer unless otherwise specified on the purchase order.

PROCESS OF MANUFACTURE :

Type of pipes PSL 1(1)PSL 2(2)
 GradesGrades
0B through X8
 A & BX42 through X7
 
      
Seamless XXX
   XXX
Welded without filler metal
– electric-welded
– laser welded
  
   
Welded with filler metal
– longitudinal seam submerged-arc welded
– gas metal-arc welded
– combination gas metal-arc and submerged-arc welded
– double seam submerged-arc welded
– double seam gas metal-arc we(l3d)ed
– double seam combination gas metal-arc welded and submerged-a(3rc)
– helical seam submerged-arc we(l4d)ed
 XXX
 XXX
 XXX
 XXX
 XXX
 XXX
 
 XXX
  1. PSL 1 is limited to sizes from 0.405 through 80 inches (10,3 to 2032 mm)
  2. PSL 2 is limited to sizes from 4 1/2 to 80 inches (114,3 à 2032 mm)
  3. Double seam pipe is limited to sizes 36 inches (914 mm) and larger
  4. Helical seam pipe is limited to sizes 4 1/2 inches (114,3 mm) and larger.

CHEMICAL REQUIREMENTS (in %) FOR HEAT AND PRODUCT ANALYSES

PSL 1

GradesCarbonManganesePhosphorusSulfurOther
maxi(a)maxi(a)maximaxi
      
seamless
A0.220.900.0300.030 
B0.281.200.0300.030b, d
X420.281.300.0300.030c, d
X46, X52, X560.281.400.0300.030c, d
X60(e), X65(e)0.281.400.0300.030c, d
X70(e)     
welded
A0.220.900.0300.030 
B0.261.200.0300.030b, d
X420.261.300.0300.030c, d
X46, X52, X560.261.400.0300.030c, d
X60(e)0.261.400.0300.030c, d
X65(e)0.261.450.0300.030c, d
X70(e)0.261.650.0300.030c, d

PSL 2

GradesCarbonManganesePhosphorusSulfurOther
maxi(a)maxi(a)maximaxi
      
seamless
B0.241.200.0250.015b, d
X420.241.300.0250.015c, d
X46, X52, X560.241.400.0250.015c, d
X60(e), X65(e), X70(e),X80(e)0.241.400.0250.015c, d
welded
B0.221.200.0250.015b, d
X420.221.300.0250.015c, d
X46, X52, X560.221.400.0250.015c, d
X60(e)0.221.400.0250.015c, d
X65(e)0.221.450.0250.015c, d
X70(e)0.221.650.0250.015c, d
 0.221.850.0250.015c, d
GradesCarbonManganesePhosphorusSulfurOther
maxi(a)maxi(a)maximaxi

a) For each reduction of 0.01 % below the specified maximum carbon content, an increase of 0.05 % above the specified maximum manganese content is permissible, up to a maximum of 1.50 % for grades X42 through X52, up to a maximum of 1.65 % for grades higher than X52 but less than X70, and up to 2.00 % for grades X70 and higher.

b) Columbium (niobium), vanadium, titanium, or combinations thereof may be used by agreement between the purchaser
and manufacturer.
c) Columbium (niobium), vanadium, titanium, or combinations thereof may be used at the discretion of the manufacturer.
d) The sum of the colombium (niobium), vanadium, and titanium contents shall not exceed 0.15 %.
e) Other chemical compositions may be furnished by agreement between purchaser and manufacturer, providing that the limits of footnote d and the tabular limits for phosphorus and sulfur are met.

TENSILE REQUIREMENTS

PSL 1

Grades Yield strength minimumUltimate tensile strength minimumElongation
minimum (%),
 ksiMPaksiMPain 2 in. (50.8 mm)
           
A 30.020748.0331a
B 35.024160.0414a
X42 42.029060.0414a
X46 46.031763.0434a
X52 52.035966.0455a
X56 56.038671.0490a
X60 60.041475.0517a
X65 65.044877.0531a
X70 70.048382.0565a

PSL 2

Grades Yield strengthUltimate tensile strengthElongation minimum (%),
in 2 in. (50.8 mm)
 minimaxi(b)minimaxi(c)
 ksiMPaksiMPaksiMPaksiMPa
           
B 35.024165.0(d)44860.0414110.0758a
X42 42.029072.049660.0414110.0758a
X46 46.031776.052463.0434110.0758a
X52 52.035977.053166.0455110.0758a
X56 56.038679.054471.0490110.0758a
X60 60.041482.056575.0517110.0758a
X65 65.044887.060077.0531110.0758a
X70 70.048390.062182.0565110.0758a
X80 80.0552100.0(e)69090.0621120.0827a

a) The minimum elongation in 2 in. (50.8 mm) shall be that determined by the following equation :

US Customary Unit Equation  \(e = 625,000 * {{A^{0.2}}\over U^{ 0.9}}\)

where
e = minimum elongation in 2 in. (50.8 mm) in percent rounded to the nearest percent.
A = cross-sectional area of the tensile test specimen in sq. in.
U = specified minimum ultimate tensile strength in psi.

b) Maximum yield strength for an intermediate grade shall be the maximum for the next higher listed grade.

c) All intermediate grades have a maximum ultimate tensile strength of 110,000 psi (758 MPa).

d) Maximum yield strength for grade B pipe in sizes subject to longitudinal testing is 72,000 psi (496 MPa).

e) For wall thickness greater than 0.984 in. (25.0 mm), the maximum yield strength shall be determined by agreement between the purchaser and the manufacturer.

TOLERANCES ON DIMENSIONS AND WEIGHTS

On
outside diameter D
 Pipe body*
 1.900 in. (48.3 mm) and smaller
2.375 in. (60.3 mm) through 18 in. (457.0 mm) 20 in. (508.0 mm) and over / seamless
20 in. (508.0 mm) through 36 in. (914.0 mm) / weld
larger than 36 in. (914.0 mm) / welded
+ 0.016 in. (+ 0.41 mm
– 0.031 in. (– 0.79 mm)
 
 
 ± 0.75 %
 ± 1.00 %
 + 0.75 %
– 0.25 %
 + 1/4 in. (+ 6.35 mm) – 1/8 in. (– 3.20 mm)
 Pipe ends** [For a distance of 4 in. (101.6 mm) from the end of the pipe]
 pipe 10.750 in. (273.0 mm) and smaller
pipe 12.750 in. (323.8 mm) and larger
+ 1/16 in. (+ 1.59 mm) – 1/64 in. (– 0.40 mm)
 + 3/32 in. (+ 2.38 mm) – 1/32 in. (– 0.79 mm)

* In the case of pipe hydrostatically tested to pressures in excess of standard test pressures, other tolerances may be agreed upon between the manufacturer and purchaser.
** For pipes larger than 20 in. (508 mm) the average diameter of one end of pipe shall not differ by more than 3/32 in. (2.38 mm) from that of the other end.

Out of roundness *** For pipe larger than 20 in. (508.0 mm) and for a distance of 4 in. (101.6 mm) from the ends of the pipe± 1.00 %

***Particular tolerances for pipes with ≤75 D/t (see API).

On
wall thickness
 OD and processGrades
 A and BX42 through X8
 
      +20.0 %+15.0 %
  2.875 in. (73 mm) and smaller seamless and wel
  – 12.5 %– 12.5 %
      
      +15.0 %+15.0 %
 3.50 in. (88.9 mm) through 18 in. (457.0 mm) seamless and w
 – 12.5 %– 12.5 %
      
      +15.0 %+17.5 %
   20 in. (508 mm) and larger seamless 
    – 12.5 %– 10.0 %
      
      +17.5 %+19.5 %
   20 in. (508 mm) and larger welded  
     – 12.5 %– 8.0 %
      

 

On weights For single lengths
– all sizes except «special» sizes
– «special» sizes (noted with an * in tables «dimensions»)
+10 %3.5 %
 +10 %5.0 %
 For carload lots, minimum of 40,000 lb (18,144 kg) Carloads, less than 40,000 lb (18,144 kg)  1.75 %
   3.5 %
 Order items, 40,000 lb (18,144 kg) or more Order items, less than 40,000 lb (18,144 kg)  1.75 %
   3.5 %

Notes :
1 – For carloads composed of pipe from more than one order item, the carload tolerances are to be applied on an individual order item basis.
2 – The tolerance for order items applies to the overall quantity of pipe shipped for the order item.

On lengths Nominal length (a)Minimum lengthMinimum average length for each order item (b)Maximum length
                   
 Threaded-and-coupled pipe
 20 ft6m)16.0ft4.88m)17.5ft5.33m)22.5ft6.86m)
 40 ft12m)22.0ft6.71m)35.0ft10.67m)45.0ft13.72m)
 Plain-endpipe             
 20 ft6m)9.0ft2.74m)17.5ft5.33m)22.5ft6.86m)
 40 ft12m)14.0ft4.27m)35.0ft10.67m)45.0ft13.72m)
 50 ft15m)17.5ft5.33m)43.8ft13.35m)55.0ft16.76m)
 60 ft18m)21.0ft6.40m)52.5ft16.00m)65.0ft19.81m)
 80 ft24m)28.0ft8.53m)70.0ft21.34m)80.0ft25.91m)

Notes :
a – Nominal lengths of 20 ft (6 m) were formerly designated «single random lengths» and those of 40 ft (12 m) «double random lengths».
b – By agreement between the purchaser and the manufacturer, these tolerances shall apply to each carload.

HYDROSTATIC TESTS

Note : The hydrostatic test pressures given herein are mill-inspection test pressures ; they are not intended as a basic for design, and do not necessarily have any direct relationship to working pressures.

The test pressures are computed by the following formula and rounded to the nearest 10 psi (1 bar)


\(P = {2 S T \over D}\)

where

P = hydrostatic test pressure in psi (0.1 bar).
S = fiber stress in psi equal to a percentage of the specified minimum yield strength for the various sizes as shown below.
T = specified wall thickness in inches.
D = specified outside diameter in inches.

Grades SizesPercent of specified minimum yield strength
 Standard test pressureAlternate test pressure
                    
A and B 2 3/8 in. (60.3 mm) and larger*6075
X42
through X80
 5 9/16 in. (141.3 mm) and smaller60**75***
 6 5/8 in. (168.3 mm) and 8 5/8 in. (219.1 m75**75***
 10 3/4 in. (273.0 mm) to 18 in. (457.0 mm) inclued 85**85***
 20 in. (508.0 mm) and larger90**90***

* Test pressures were limited to 2500 psi (172 bar) for 3 1/2 in. (88.9 mm) OD and smaller and to 2800 psi (193 bar) for sizes larger than 3 1/2 in. (88.9 mm) OD. Test pressures for other sizes are established arbitrarily.
** Test pressures for grades X42 through X80 were limited to 3000 psi (207 bar) to accomodate hydrostatic tester limitations.
*** Test pressures for grades X42 through X80 were limited to 7,260 psi (500 bar) for sizes < 16” (406.4 mm) and 3.630 psi (250 bar) for sizes ≥ 16” (406.4 mm)

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