Offsore Construction

Process: Spiral Submerged- Arc Welded Steel Pipe
Certificate: EN10217, EN10219, API 5L PSL1/ PSL2, API 5CT
Out Diameter: 219.1mm –3048mm
Wall Thickness: 5.0mm-30mm
Length: Up to 70m

Categories:

Specification

SSAW Steel Pipe

Process: Spiral Submerged- Arc Welded Steel Pipe

Usage: Used for low pressure liquid delivery, such as water, gas, and oil; construction and piling

Standard: API 5L, API 5CT, ASTM A252, ASTM 53, EN10217, EN10219, BS 5950, ASTM A572 , JIS, IS,

Certificate: EN10217, EN10219, API 5L PSL1/ PSL2, API 5CT

Out Diameter: 219.1mm –3048mm

Wall Thickness: 5.0mm-30mm

Length: Up to 70m

Steel Grade:

API 5L: GR A, GR B, X42,X46, X56, X60,X65,X70

ASTM A252 GR 1, GR 2, GR 3

ASTM A53: GR A, GR B, GR C, GR D

BS 4360: Grade 43, Grade 50

EN: S275, S275JR, S355JRH, S355J2H

Surface: Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating as per customer’s requirement

Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.

Mill Test Certificate: EN 10204/3.1B

Wall Thickness

Oil & Gas Line Pipe

ASTM A252 Piling Pipe

STEEL GRADE
ASTM A252 GR 1, GR 2, GR 3

STEEL CHEMICAL COMPOSITION
The steel shall conform to the following requirements as to chemical composition:
Phosphorus, maximum (%) : 0.050

MECHANICAL PROPERTIES

STEEL GRADE

Yield strength, min. psi (MPa)

Tensil strength, min. psi (MPa)

Elongation in 2 in., min. %

GRADE 1

30,000 (205)

50,000 (345)

30%

GRADE 2

35,000 (240)

60,000 (415)

25%

GRADE 3

45,000 (310)

66,000 (455)

20%

TEST REQUIRED
Chemical Analysis, Mechanical Test, Visusal Inspection , Tension Test, Dimension Check

EN10219 Structure Pipe

STEEL GRADE
EN10219 S235, S275, S355,etc

STEEL CHEMICAL COMPOSITION

STEEL GRADE

% by mass, Maximum

C

Si

Mn

P

S

N

S235JRH

0.17

1.40

0.040

0.040

0.009

S275JOH

0.20

1.50

0.035

0.035

0.009

S275J2H

0.20

1.50

0.030

0.030

S355JOH

0.22

0.55

1.60

0.035

0.035

0.009

S355J2H

0.22

0.55

1.60

0.030

0.030

S355K2H

0.22

0.55

1.60

0.030

0.030

MECHANICAL PROPERTIES

STEEL GRADE

Yield strength, min. psi (MPa)

Tensil strength, min. psi (MPa)

Elongation in 2 in., min. %

Minimum Impact energy KV J

at test temperature of

-20

0

20

S235JRH

235

360

24%

27

S275JOH

275

430

20%

27

S275J2H

355

510

20%

27

S355JOH

355

510

20%

27

S355J2H

355

510

20%

27

S355K2H

355

510

20%

40

TEST REQUIRED
Chemical Analysis, Mechanical Test, Visusal Inspection , Tensile Test, Dimension Check, NDT ,Impact Test