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Hot Rolled Seamless Carbon Steel Pipe API 5L Grade B X65 PSL2 for Oil and Gas Transmission Pipeline

Unsure about choosing between API 5L Grade B and X65 PSL2 Seamless Pipe? Get the ultimate guide on specifications, manufacturing process, and key differences.

  • Size: DN15-DN600
  • Wall Thickness: 4 - 40mm
  • Brand: YTDR or OEM/ODM
  • Grade: 20# 45# Q345 Q355
  • Surface Treatment: Hot Rolled
  • Oiled or Non-oiled: Slightly Oiled
  • Delivery Times: Within 15 Days
  • Delivery Port: Xingang Tianjin Port,China
  • Payment Terms: L/C,T/T
 Product Description
YTDR

Hot Rolled Seamless: This refers to the manufacturing process. The steel is formed at high temperatures without any seams or welds, creating a uniform structure that excels in high-pressure environments. This is a key differentiator from welded pipes.
Grade B & X65: These are material grades indicating the minimum Yield Strength.
●Grade B: The standard grade with a minimum yield strength of 245 MPa (35,500 psi).
●X65: A higher-strength grade with a minimum yield strength of 448 MPa (65,000 psi). The "X" denotes a higher performance category.
PSL2 (Product Specification Level 2): This is a crucial differentiator. PSL2 mandates stricter chemical composition controls, superior toughness (e.g., Charpy V-Notch impact testing), enhanced non-destructive testing, and higher mechanical property requirements compared to the more basic PSL1.

Feature

API 5L Grade B (PSL2)

API 5L X65 (PSL2)

Min. Yield Strength

245 MPa

448 MPa

Chemical Composition

 

Standard controls

 

Stricter controls on Carbon, Manganese, Micro-alloying elements

Typical Application

 

Lower-pressure gathering lines, water injection lines, structural pilings

High-pressure transmission trunk lines, offshore pipelines, demanding onshore routes

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 Why YTDR's API 5L PSL2 Seamless Pipe is the Superior Choice for Your Project
YTDR

While many suppliers meet the basic API 5L standard, YTDR engineers excellence into every meter of our seamless steel pipe. Here’s how our commitment translates into tangible benefits for your pipeline project:
1. Uncompromising Material Integrity & Superior Toughness
Our hot-rolled seamless pipes are produced from continuously cast, fine-grain steel billets. The seamless manufacturing process, devoid of welds, eliminates the weak points inherent in welded pipes. For PSL2 grade, we guarantee enhanced Charpy V-Notch impact toughness at temperatures as low as -20°C or lower, ensuring fracture resistance even in harsh environments. This makes YTDR pipes the ideal choice for:
●High-Pressure Transmission Lines
●Offshore & Submarine Pipelines
●Arctic and Cold Climate Operations

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2. Full Traceability & Certified Peace of Mind
Every length of YTDR carbon steel pipe comes with a complete suite of documentation, including a 3.1 Mill Test Certificate that is fully traceable to the heat and batch number. This isn't just paperwork—it's your guarantee that the chemical composition, mechanical properties (yield strength, tensile strength), and non-destructive test results meet the most stringent requirements of API 5L PSL2. Our API Monogram license is your assurance of third-party verified quality.

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3. Precision Dimensional Control for Flawless Installation
The hot rolling process for seamless tubing is meticulously controlled to ensure exceptional dimensional accuracy in outer diameter (OD) and wall thickness (WT). This consistency minimizes issues during welding and installation, reducing field-fit problems and keeping your project on schedule and within budget. We offer a comprehensive range of standard and non-standard sizes to meet your specific design requirements.

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4. Enhanced Performance for Demanding Applications
YTDR's API 5L X65 seamless pipe offers a higher minimum yield strength (448 MPa) compared to Grade B (245 MPa). This allows for:
●Higher Operating Pressures: Transport more product with greater efficiency.
●Thinner Wall Design: Reduce the total tonnage and cost of your project without compromising safety or performance.
●Superior Deformation Resistance: Better withstand external loads and geotechnical stresses.

 Processing
YTDR

Raw Material (Billet) → Heating → Piercing → Elongation → Sizing → Cooling → Heat Treatment → Straightening → NDT Testing → Hydrostatic Test → End Finishing → Inspection → Coating → Packaging

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 Quality Assurance
YTDR

Certification: API 5L/API 5CT, ASTM A106, ISO 9001.
●Steel Grade Customization:
●American Standard (ASTM): Gr. A, B, C, etc.
●European Standard (EN): S235, S275, S355, S420, S460, etc.
●Japanese Standard (JIS): SS400, STKR400, STKR490, etc.
●Chinese Standard (GB): Q195, Q235, Q355, etc.
●Canadian Standard (CSA): 300W, 350W, etc.
Testing: Full compliance with PSL2 requirements (Charpy impact test, hardness test).
From raw material sourcing to finished products, Yuantai Derun implements rigorous quality control at every step. We exclusively use traceable raw materials from reputable manufacturers, subjecting them to comprehensive inspections, including but not limited to:
●Dimensional & Visual Checks (appearance, size, straightness)
●Mechanical Testing (impact resistance, yield & tensile strength, hardness)
●Material Analysis (chemical composition, metallographic examination)
●Non-Destructive & Corrosion Testing (UT inspection, salt spray testing)
Contact us today to discuss your specific testing requirements—we ensure precision and reliability in every pipe.

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 Free Samples For You
YTDR

At Yuantai Derun, we take pride in delivering premium square steel pipes. To let you experience our excellence firsthand, we’re pleased to provide free samples (up to 20 cm in length), shipped directly to you via express air freight—with only the shipping cost on your end.
Why hesitate? Put our materials to the test and discover why Yuantai Derun stands out in quality and reliability. Request your sample today!

Product Description

Outer Diameter

DN15-DN600

 

Wall Thickness

4-40 mm

Length

1-12m according to client requirement

Tolerance

±1%

Brand

Yuantai Derun Steel Pipe Manufacturing Group

Grade

C20,ST52,SAE1026,CK45,25MN

Surface Treatment

Anti-Rust Oil Painted

Processing Service

Welding, Punching, Cutting, Bending, Decoiling

Alloy Or Not

Non-Alloy

Certificate

CE,LEED,BV,PHD&EPD,BC1,EN10210/10219,

ISO9000/14001/45001,DNV,ABS,JIS G3466

MOQ

2-5 Tons or No minimum order

Delivery Time

7-30 days

Samples

Free Samples    Get Free Sample Now!

inch size

DN

OD

SCH20

SCH30

SCH40

SCH 80

SCH 100

SCH 120

SCH 140

SCH 160

 

 

 

 

 

 

 

 

 

 

 

1/4

DN8

13.7

-

-

2.24

3.02

 

 

 

-

3/8

DN10

17.1

-

-

2.31

3.2

 

 

 

-

1/2

DN15

21.3

 

 

2.77

3.73

 

 

 

4.78

3/4

DN20

26.7

 

 

2.87

3.91

 

 

 

5.56

1

DN25

33.4

 

 

3.38

4.55

 

 

 

6.35

1-1/4

DN32

42.2

 

 

3.56

4.85

 

 

 

6.35

1-1/2

DN40

48.3

 

 

3.68

5.08

 

 

 

7.14

2

DN50

60.3

 

 

3.91

5.54

 

 

 

8.74

2-1/2

DN65

73.0

 

 

5.16

7.01

 

 

 

9.53

3

DN80

88.9

 

 

5.49

7.62

 

 

 

11.13

 

DN100

101.6

 

 

5.74

8.08

 

 

 

 

4

DN100

114.3

 

 

6.02

8.58

 

11.13

 

13.49

5

DN125

141.3

 

 

6.55

9.53

 

12.7

 

15.88

6

DN150

168.3

 

 

7.11

10.97

 

14.27

 

18.26

8

DN200

219.1

6.35

7.04

8.18

12.70

15.09

18.26

20.26

23.01

10

DN250

273.1

6.5

7.8

9.27

15.09

18.26

21.44

25.4

28.58

12

DN300

323.9

7

9.53

10.31

17.48

21.44

25.4

28.58

33.32

14

DN350

355.6

7.92

 

11.13

19.05

23.83

27.79

31.75

35.71

16

DN400

406.4

7.92

9.53

12.70

21.44

26.19

30.96

36.53

40.49

18

DN450

457

7.92

11.13

14.27

23.83

29.36

34.93

39.67

45.24

20

DN500

508

9.53

12.70

15.09

26.19

32.54

38.1

44.45

50.01

24

DN600

610

9.53

14.27

17.48

30.96

38.89

46.02

52.37

59.54