Skip Navigation

Pipeline steel

Pipeline steel PSL 1
ISO 3183/API 5L

Steel grade designation Standard designation THICKNESS1
from _ to in mm
WIDTH1
from _ to in mm
L245 or Grade B L245 or Grade B 3.00 – 25.40 1,000 – 2,000
L290 or X42 L290 or X42 3.00 – 25.40 1,000 – 2,000
L360 or X52 L360 or X52 3.00 – 25.40 1,000 – 2,000
L390 or X56 L390 or X56 3.00 – 25.40 1,000 – 2,000
L415 or X60 L415 or X60 3.00 – 25.40 1,000 – 1,800
L450 or X65 L450 or X65 3.00 – 25.40 1,000 – 1,800
L485 or X70 L485 or X70 3.00 – 23.00 1,000 – 1,800
L555 or X80 L555 or X80 #25ce #25ce

Pipeline steel PSL 2
ISO 3183/API 5L

Steel grade designation Standard designation THICKNESS1
from _ to in mm
WIDTH1
from _ to in mm
L245N/M or Grade BN/M L245N/M or Grade BN/M 3.00 – 25.40 1,000 – 2,000
L290N/M or X42N/M L290N/M or X42N/M 3.00 – 25.40 1,000 – 2,000
L360N/M or X52N/M L360N/M or X52N/M 3.00 – 25.40 1,000 – 2,000
L390M or X56M L390M or X56M 3.00 – 20.00 1,000 – 1,600
L415M or X60M L415M or X60M 3.00 – 20.00 1,000 – 1,600
L450M or X65M L450M or X65M 3.00 – 18.00 1,000 – 1,600
L485M or X70M L485M or X70M 3.00 – 18.00 1,000 – 1,600
L555M or X80M L555M or X80M #25ce #25ce

Pipeline steel with requirements for HIC resistance (sour)

ISO 3183/API 5L

Steel grade designation Standard designation THICKNESS1
from _ to in mm
WIDTH1
from _ to in mm
L245MS or Grade BMS L245MS or Grade BMS 3.00 – 25.40 1,000 – 2,000
L290MS or X42MS L290MS or X42MS 3.00 – 25.40 1,000 – 2,000
L360MS or X52MS L360MS or X52MS 3.00 – 25.40 1,000 – 2,000
L390MS or X56MS L390MS or X56MS 3.00 – 18.00 1,000 – 1,600
L415MS or X60MS L415MS or X60MS 3.00 – 18.00 1,000 – 1,600
L450MS or X65MS L450MS or X65MS 3.00 – 16.00 1,000 – 1,600
L485MS or X70MS L485MS or X70MS #25ce #25ce

Steel for OCTG applications (oil country tubular goods)

API 5CT

Steel grade designation Standard designation THICKNESS1
from _ to in mm
WIDTH1
from _ to in mm
H40 H40 5.00 – 25.40 1,000 – 1,600
J55 J55 5.00 – 25.40 1,000 – 1,600
K55 K55 #25ce #25ce
N80 N80 #25ce #25ce

1 Not all thickness and width combinations possible

On request

To the top