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Standard: API 5L.  PSL1, PSL2

Steel Grade:B、 X42、 X46、 X52、X56、X60、X65、X70、X80、X90、X100、X120

Application: For pipeline transportation systems Petroleum and natural gas industries.

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Description

API 5L specification include:welded and seamless Steel pipes. Although in recent years more and more projects designer will adopt ERW welded pipe or spiral welded pipes as line pipe instead seamless steel pipe, API 5L GR B seamless steel pipe is still in large demand in worldwide engineering industry.

  1. API 5L Gr B Seamless Steel Pipe PSL1 Chemical Composition
Steel grade Mass fraction, based upon heat and product analyses a
%
C Mn P S V Nb TI
max. b max. b min. max. max. max. max. max.
Seamless pipe
L245 or B 0,28 1,20 0,030 0,030 c,d c,d d
  1. API 5L GR B Seamless PSL1 Carbon Pipe Mechanical Properties
Pipe grade Pipe
body of seamless and welded pipes 
Weld seam of EW,
SAW and COW pipes
Yield strength aRt0,5 MPa
(psi) minimum
Tensile
strength a RmMPa (psi) minimum
ElongationAf %
minimum
Tensile
strength b RmMPa (psi) minimum
L245R or BR L245 or B 245
(35 500)
415
(60 200)
c 415
(60 200)
  1. API 5L Gr B Seamless Steel Pipe PSL2 Chemical Composition
Steel grade (Steel name) Mass fraction, based upon heat
and product analyses% maximum
Carbon equivalent a %
maximum
C b Si Mn P S V Nb Ti Other CEIIW CEPcm
Seamless steel pipe
L245R or BR 0,24 0,40 1,20 0,025 0,015 c c 0,04 e 0,43 0,25
  1. API 5L Grade B PSL2 SMLS Steel Pipe Tensile Strength Properties
Pipe grade Pipe body of seamless and
welded pipes
Yield
strength aRt0,5 b
 Tensile
strength aRm
Ratio a, b,
c

Elongation

Af

MPa (psi) MPa (psi) Rt0,5/Rm %
minimum maximum minimum maximum  maximum minimum
L245R or BR L245N or BN L245Q or BQ L245M or
BM

245

(35 500)

450 e

(65 300) e

415

(60 200)

760

(110 200)

0,93 f

 

For more info rmation on API 5L Gr B seamless pipes, please send us enquiry.API 5L GRADE B Thickness tolerance for both PSL1 & PSL2 seamless pipe