GOST pipe

Standard

API 5L

Material

GR.B
X42Q - X65Q

Outside Diameter

114.3mm-711mm

4"-28"

Thickness

6.02mm-12.7mm

SCH40-XXS

Length

6M 12M or Random

Surface Treatment

Bare 3LPE

Package

Bundle or loose

Wood box

Marking: acording to customer's requirement.

Delivery condition

PSL1/PSL2

Chemical Composition for PSL 1 pipe

Steel Grade

C

Mn

P

S

V

Nb

Ti

A

0.22

0.9

0.3

0.3

\

\

\

B

0.28

1.2

0.3

0.3

c,d

c,d

c,d

X42

0.28

1.3

0.3

0.3

d

d

d

X46

0.28

1.4

0.3

0.3

d

d

d

X52

0.28

1.4

0.3

0.3

d

d

d

X56

0.28

1.4

0.3

0.3

d

d

d

X60

0.28e

1.4e

0.3

0.3

f

f

f

X65

0.28e

1.4e

0.3

0.3

f

f

f

a. Cu ≤ = 0.50% Ni; ≤ 0.50%; Cr ≤ 0.50%; and Mo ≤ 0.15%,

b. For each reduction of 0.01% below the specified maximum concentration for
carbon, an increase of 0.05% above the specified maximum concentration for
Mn is permissible, up to a maximum of 1.65% for grades ≥ L245 or B, but ≤
 L360 or X52; up to a maximum of 1.75% for grades > L360 or X52,
but < L485 or X70; and up to a maximum of 2.00% for grade L485 or X70.,

c. Unless otherwise agreed NB + V ≤ 0.06%,

d. Nb + V + TI ≤ 0.15%,

e. Unless otherwise agreed.,

f. Unless otherwise agreed, NB + V = Ti ≤ 0.15%,

g. No deliberate addition of B is permitted and the residual B ≤ 0.001%

Chemical Composition for PSL 2 pipe

Steel Grade

C

Si

Mn

P

S

V

Nb

Ti

Other

CE IIW

CE Pcm

X42Q

0.18

0.45

1.4

0.25

0.015

0.5

0.5

0.4

e,l

0.43

0.25

X46Q

0.18

0.45

1.4

0.25

0.015

0.5

0.5

0.4

e,l

0.43

0.25

X52Q

0.18

0.45

1.5

0.25

0.015

0.5

0.5

0.4

e,l

0.43

0.25

X56Q

0.18

0.45f

1.5

0.25

0.015

0.7

0.5

0.4

e,l

0.43

0.25

X60Q

0.18f

0.45f

1.7f

0.25

0.015

g

g

g

h,l

0.43

0.25

X65Q

0.18f

0.45f

1.7f

0.25

0.015

g

g

g

h,l

0.43

0.25

a. SMLS t>0.787”, CE limits shall be as agreed. The CEIIW limits applied fi C > 0.12% and the CEPcm limits apply if C ≤ 0.12%,

b. For each reduction of 0.01% below the specified maximum for C, an increase of 0.05% above the specified maximum for Mn is permissible, up to a maximum of 1.65% for grades ≥ L245 or B, but ≤ L360 or X52; up to a maximum of 1.75% for grades > L360 or X52, but < L485 or X70; up to a maximum of 2.00% for grades ≥ L485 or X70, but ≤ L555 or X80; and up to a maximum of 2.20% for grades > L555 or X80.,

c. Unless otherwise agreed Nb = V ≤ 0.06%,

d. Nb = V = Ti ≤ 0.15%,

e. Unless otherwise agreed, Cu ≤ 0.50%; Ni ≤ 0.30% Cr ≤ 0.30% and Mo ≤ 0.15%,

f. Unless otherwise agreed,

g. Unless otherwise agreed, Nb + V + Ti ≤ 0.15%,

h. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 0.50% Cr ≤ 0.50% and MO ≤ 0.50%,

i. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.50% and MO ≤ 0.50%,

j. B ≤ 0.004%,

k. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.55% and MO ≤ 0.80%,

l. For all PSL 2 pipe grades except those grades with footnotes j noted, the following applies. Unless otherwise agreed no intentional addition of B is permitted and residual B ≤ 0.001%.