COMPARISON SHEET FOR PSL 1 & PSL 2 PIPES


API 5L GR. B PIPES
PROPERTIES / REQUIREMENTS COMPARISON SHEET FOR PSL 1 & PSL 2 PIPES
Sl. No. Properties REQUIREMENTS ACTUAL SEAMLESS PIPES USED (Heat Nos.)
API 5L Gr. B PSL 1 API 5L Gr. B PSL 2
1 2 3 4 5 6
68B2583 (4″) 88B8482 (4″) 89B0779 (6″) 89B5553 (6″) 0000213182 (6″) 0000213415 (6″)
Chemical Composition
1 C % max. 0.28 0.24 0.16 0.18 0.16 0.168 0.15 0.15
2 P % max. 0.03 0.025 0.018 0.006 0.006 0.013 0.01 0.01
3 S % max. 0.03 0.015 0.002 0.004 0.003 0.003 0.003 0.003
4 Mn % max. 1.20 1.20 0.80 0.85 0.81 0.82 0.74 0.74
5 Si % max. NS 0.40 0.26 0.29 0.24 0.24 0.26 0.26
6 CE (Carbon Equivalent) % max. NS 0.43 0.33 0.348 0.34 0.347 0.32 0.32
Mechanical Properties
7 Yield Strength MPa (min. / max.) 245 / NS 245 / 450 342, 345 347, 344 336, 334 331, 333 301, 293 305, 294
8 Tensile Strength MPa (min./ max.) 415 / NS 415 / 760 527, 534 493, 489 519, 507 497, 497 477, 467 482, 469
9 Fracture Toughness (CVN Impact Test) NS Table 8/18/22 (NA) NA NA NA NA 149, 147 (J) 149, 187 (J)
Non-Destructive Inspection
10 EM / UT / MPI Any method Any method EM EM EM EM EM EM
Other Tests
11 Hydrotest Each Pipe Each Pipe done done done done done done
12 Hardness Test (max.) Table 17 (NA) Table 18 (NA) 163, 165 (HV 30) 151, 152 (HV 10) 149, 152 (HV 30) 148, 149 (HV 10) 76, 75 (HRB) 76, 75 (HRB)
13 NACE Compliance NS NS written in MTC written in MTC written in MTC written in MTC written in MTC written in MTC

Note: NS – Not Specified; NA – Not Applicable. Only 6 Heats of Seamless Pipes are listed here.