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STEEL NUMBER

Annex L
(informative)

STEEL NUMBER / STEEL DESIGNATION

Table L.1 gives guidance on steel designations (steel numbers) which are used in Europe additionally to the steel name.

Table L.1

Steel name in accordance with ISO 3183 Steel number in accordance with EN 10027-2
Steel grades for PSL 1 pipe in Table 4 a
L175 1.8700
L175P 1.8707
L210 1.8713
L245 1.8723
L290 1.8728
L320 1.8729
L360 1.8730
L390 1.8724
L415 1.8725
L450 1.8726
L485 1.8727
Steel grades for PSL 2 pipe in Table 5 a
L245R 1.8788
L290R 1.8789
L245N 1.8790
L290N 1.8791
L320N 1.8792
L360N 1.8793
L390N 1.8970
L415N 1.8736
L245Q 1.8737
L290Q 1.8738
L320Q 1.8739
L360Q 1.8741
L390Q 1.8740
L415Q 1.8742
Steel grades for PSL2 pipe in Table 5 a
L450Q 1.8743
L485Q 1.8744
L555Q 1.8745
L245M 1.8746
L290M 1.8747
L320M 1.8748
L360M 1.8749
L390M 1.8971
L415M 1.8752
L450M 1.8754
L485M 1.8756
L555M 1.8758
L625M 1.8753
L690M 1.8979
L830M 1.8755
Steel grades for PSL 2 pipe for sour service in Table H.1 a
L245NS 1.1020
L290NS 1.1021
L320NS 1.1022
L360NS 1.8757
L245QS 1.1025
L290QS 1.1026
L320QS 1.1027
L360QS 1.8759
L390QS 1.8760
L415QS 1.8761
L450QS 1.8762
L485QS 1.8763
L245MS 1.1030
L290MS 1.1031
L320MS 1.1032
L360MS 1.1033
L390MS 1.1034
L415MS 1.8766
L450MS 1.8767
L485MS 1.8768
Steel grades for PSL 2 pipe for offshore service in Table J.1 a
L245NO 1.1040
L290NO 1.1041
L320NO 1.1042
L360NO 1.8778
L245QO 1.1045
L290QO 1.1046
L320QO 1.1047
L360QO 1.8771
L390QO 1.8772
L415QO 1.8773
L450QO 1.8774
L485QO 1.8775
L555QO 1.8776
L245MO 1.1050
L290MO 1.1051
L320MO 1.1052
L360MO 1.8781
L390MO 1.8782
L415MO 1.8783
L450MO 1.8784
L485MO 1.8785
L555MO 1.8786
a Table number for ISO 3183 only.

 




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