ISO3183 Annex A L290ME Line Pipe with 3LPE Anti-Corrosion Coating

Steel Grade 

Mass Fraction,Based upon heat and product analyses ^a

^{% max}

Carbon Equivalent^{c %Max}

C_b

Si

Mn_b

P

S

V

Nb

Ti

Other

CE_IIW

CE_pcm

L290ME 

0.18

0.45

1.2

0.025

0.015

0.05

0.05

–

d

0.40

0.25

L360ME

0.18

0.45

1.3

0.025

0.015

0.05

0.05

–

d

0.40

0.25

a Elements not mentioned in this table shall not be added intentionally without purchaser’s approval except for elements that may be added for deoxidation and finishing of the heat. 

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 increase of 0,20 %. 

c Based upon product analysis [see API Spec 5L, 46th edition (2018)], 9.2.4 and 9.2.5). The CEIIW limits apply if C > 0,12 % and the CEPcm limits apply if C ≤ 0,12 %. 

d 0,015 % ≤ Altotal ≤ 0,060 %; N ≤ 0,012 %; Al/N ≥ 2:1, Cu ≤ 0,25 %; Ni ≤ 0,30 %; Cr ≤ 0,30 %; Mo ≤ 0,10 %. 

Steel Grade

Pipe Body for Welded Pipes

Weld of HFW Pipes

Yield Strength 

R_t0.5

Mpa(psi)

Tensile Strength

R_m

Mpa(psi)

Ratio

R_t0.5/R_m

Elongation^a

Tensile Strength

R_m

Mpa(Psi)

Min

Max

Min

Max

Max

Min

Min 

L290ME

290

(42100)

440

(63800)

415

(60200)

655

(95000)

0.85

21

415

(60200)

L360ME 

360

(52200)

510

(74000)

460

(66700)

760

(110200)

0.85

20

460

(66700)

a These values apply to transverse test pieces taken from the pipe body. When longitudinal test pieces are tested [see

API Spec 5L, 46th edition (2018), Table 20], the values of elongation shall be 2 units higher.

Specified outside

diameter

D

mm (in)

Diameter tolerancesa Out-of-roundness

mm (in)

Out-of-roundness

tolerancesa,e

mm (in)

Pipe except the end

Pipe end

Pipe except

the end

Pipe endb,c

Welded pipe

≥60,3 (2.375) to

610 (24.000)

±0,5 (0.020)

or ±0,007 5 D,

whichever is

the greater,

but maximum

of ±3,0 (0.125)

±0,5 (0.020) or ±0,005 Dc

(whichever is the greater) but

maximum of ±1,6 (0.063)

0,02 D

0,015 D

a The pipe end includes a length of 100 mm (4.0 in) at each of the pipe extremities.

b For SMLS pipe, the tolerances apply for t ≤ 25,0 mm (0.984 in) and the tolerances for heavier wall pipe shall be as agreed.

c Subject to agreement, the diameter tolerance may be applied to the inside diameter for D ≥ 219,1 mm (8.625 in).

d Unless otherwise agreed, the diameter tolerance applies to the inside diameter.

e When the diameter tolerance is applied to the inside diameter, the inside diameter shall also be the basis for the out-ofroundness

requirements.

Wall thickness

T

mm(in)

Tolerances^a

mm(in)

≤10,0 (0.394)

 ±0,5 (0.020)

No.

Properties

Units

Requirements

Test Method

1

Density

g/cm3

As per manufacturer’s

specification ±0.05

ISO 8130-2

2

Gel time

Sec

Within 20% of

manufacturer’s specification

ISO 8130-6

3

Particle size:

Maximum powder retained on

150 μm mesh

Maximum powder retained on

250 μm mesh

%

3.0

0.2

CSA Z 245.20-02

4

Specific coating resistance after

100 days of exposure

in 3% NaCl solution @ 23°C

Ohm.m

>10

8

NF A 49-710

5

3.0° flexibility test @ 23°, 0° & -20° C

No cracking

CSA Z 245.20-02

6

Cathodic disbondment after 28 days@

65 ° C

in 3% NaCl solution at -1.5

volts (calomel electrode)

potential, initial defect diameter

Do=6 mm

Mm

7 (max)

NF A 49-710

7

Moisture content (max.)

% by mass

0..5

ISO 21809-1

(Annex K)

8

Degree of cure (differential thermal

analysis)

° C

-2 ° C ≤ ΔTg ≤ +3 ° C

ISO 21809-1

(Annex D)

9

Glass transition temperature (Tg2)

(DSC Analysis)

° C

≥95 (for 3LPE)

ISO 21809-1

(Annex D)

10

Water resistance (1000 hrs. @ 80 ° C)

–

No blistering, swelling < 5%,

loss of hardness <10%

ASTM D 870

11

Adhesion to pipe surface

–

Max. rating 2

CSA Z 245.20-02

No.

Properties

units

Requirement

Test Method

PE

1

Density

Kg/m3

Within 1% of

Manufacturer’s specified nominal

ISO 1183

2

Melt Flow Rate (190° C, 2.16 Kg)

g/10min

Within 20% of

manufacturer’s specified nominal

ISO 1133

3

Oxidation induction time @ 210° C

Minutes

≥ 20

EN 728

ISO 11357

4

Tensile strength at break @ 23° C

MPa

≥ 15

ISO 527

5

Ultimate elongation 2, 23° C

%

≥ 600

ASTM D 638

ISO 527

6

Hardness

Shore D

≥ 47

ISO 868

7

Melting point (D.S.C)

° C

≥ 120

ISO 3146

8

Vicat softeninig temperature A/50 (10 N)

° C

≥95

ISO 306

9

Water content (Max.)

%

0.1

ISO 15512

No.

PROPERTIES

UNITS

REQUIREMENT

TEST METHOD

1

Density, Compound

g/cm3

≥ 0.946

ISO1183

2

Melt Flow Rate

g/10 min.

0.15 – 0.8 (190 °C, 2.16 Kg)

ISO1133

3

Oxidation Induction Time

Minutes

≥ 30 @ 220 °C

EN728

4

Tensile Strength At Break @ 23° C

MPa

≥ 18

ISO 527

5

Carbon black content

%

2.0 – 2.5

ASTM D 1603

ISO 6964

6

Elongation At Break @ 23° C

%

≥ 600

ISO 527

7

Hardness

SHORE D

≥ 55

ISO 868

8

Melting Point

° C

≥ 125

ISO 3146

9

Vicat Softening Temperature(A50/(10N))

° C

≥ 120

ISO 306

10

ESCR

Hour

≥ 1000

ASTM D 1693

(Condition B)

11

Volume Resistivity

Ohm .cm

≥ 10 16

ASTM D 257

12

Water Content

%

≤ 0.05 ISO

ISO 15512

13

UV Resistance And Thermal Ageing

%

Δ MFR ≤ 35

ISO 21809-1

(Annex G)

Nominal Size

Minimum Thickness ^a(mm)

Normal(n)

Increased(v)

≤DN100

1.8

2.5

>DN100   ≤DN250

2.0

2.7

>DN250   <dn500< p=””> </dn500<>

2.2

2.9

≥DN 500 <dn800< p=””> </dn800<>

2.5

3.2

≥DN800

3

3.7

a The thickness may be less than the minimum thickness locally as long as these local areas do not

exceed 5 cmÇ per 1 m length of pipe and the difference between the actual thickness and the minimum thickness is not greater than 10 %.