API 5L X42-X80 Carbon Steel Welded Pipes: 1/2"-63", Oil Gas Transmission
What Are Carbon Steel Welded Pipes?
Carbon steel welded pipes are manufactured through precision forming and welding of carbon steel strips/plates, offering excellent strength, durability, and cost-effectiveness. These pipes are ideal for structural applications and fluid transportation across various industries, ensuring reliable performance even in demanding environments.
Product Grades & Certifications
International Standards:
-
ASTM A53 (Structural Applications)
-
API 5L (X42-X70 Grades for Oil/Gas Transmission)
-
ASTM A500 (Gr.B/C for Construction)
-
EN 10219 (EU Standard Compliance)
-
Custom Grades Available per Project Requirements
Global Certifications:
-
ISO 9001, CE, API Monogram, EN 1090
-
Country-Specific Approvals: GOST-R, BIS, SASO, INMETRO
-
Welding Quality: ISO 3834 Certified
Sizes & Applications
Comprehensive Size Range:
-
Diameter: 1/2" to 24" (Custom Sizes up to 60" Available)
-
Wall Thickness: 0.5mm to 25mm
-
Length: 6m-12m Standard (Custom Lengths upon Request)
Key Applications:
-
✅ Oil & Gas Transmission Pipelines
-
✅ Structural Building Frameworks
-
✅ Water Supply & Plumbing Systems
-
✅ Scaffolding & Construction Support
-
✅ Mechanical & Automotive Engineering
-
✅ Industrial Machinery Components
18 Years of Expertise - What We Deliver to You
✅ Proven Global Capability
-
Successful exports to 60+ countries across 5 continents
-
500+ completed projects in energy and infrastructure sectors
✅ Uncompromising Quality Assurance
-
Automated ERW/SAW production with real-time monitoring
-
100% Non-Destructive Testing (UT/RT) and hydrostatic testing
-
Full material traceability from source to shipment
✅ Cost-Effective Solutions
-
Factory-direct pricing with 20-30% cost savings
-
Bulk order discounts and flexible MOQ options
-
Value engineering for optimal project budgeting
✅ Seamless Global Logistics
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FOB/CIF/CFR terms to major worldwide ports
-
Efficient handling of all export documentation
-
Reliable shipping partners for on-time delivery
✅ Technical Partnership
-
Multilingual engineering support team
-
Customized solutions for special requirements
-
24/7 project consultation and troubleshooting
Frequently Asked Questions (FAQ)
Q1: How do you ensure welding quality and consistency?
A: We implement automated welding systems with continuous monitoring, complemented by 100% ultrasonic testing and random radiographic testing. Our ISO 3834 certification ensures strict welding quality management throughout production.
Q2: What is your typical lead time for export orders?
A: Standard orders ship within 7-10 days. We offer expedited production (5- 7days) for urgent projects, with real-time production tracking available.
Q3: Can you provide pipes for high-pressure applications?
A: Absolutely. Our API 5L pipes are specifically designed for high-pressure oil and gas transmission, with full hydrostatic testing certification and traceability.
|
O.D. |
W.T. |
Length(m) |
|||||||
|
Inch |
mm |
Min.Yield Strength(Mpa) |
|||||||
|
Inch |
mm |
245(B) |
290(X42) |
360(X52) |
415(X60) |
450(X65) |
485(X70) |
555(X80) |
|
|
16 |
406 |
6.0-14.0 |
6.0-13.0 |
6.0-12.0 |
6.0-11.0 |
6.0-10.5 |
6.0-10.0 |
6.0-9.0 |
6.0-12.3 |
|
18 |
457 |
6.0-15.0 |
6.0-14.0 |
6.0-13.0 |
6.0-12.0 |
6.0-11.5 |
6.0-11.0 |
6.0-10.0 |
6.0-12.3 |
|
20 |
508 |
6.0-16.0 |
6.0-15.0 |
6.0-14.0 |
6.0-13.0 |
6.0-12.5 |
6.0-12.0 |
6.0-11.0 |
6.0-12.3 |
|
22 |
559 |
6.0-17.0 |
6.0-16.0 |
6.0-15.0 |
6.0-14.0 |
6.0-13.5 |
6.0-13.0 |
6.0-12.0 |
6.0-12.3 |
|
24 |
610 |
6.0-18.0 |
6.0-17.0 |
6.0-16.0 |
6.0-15.0 |
6.0-14.5 |
6.0-14.0 |
6.0-13.0 |
6.0-12.3 |
|
26 |
660 |
6.0-19.0 |
6.0-18.0 |
6.0-17.0 |
6.0-16.0 |
6.0-15.0 |
6.0-15.0 |
6.0-14.0 |
6.0-12.3 |
|
28 |
711 |
6.0-20.0 |
6.0-19.0 |
6.0-18.0 |
6.0-17.0 |
6.0-16.5 |
6.0-16.0 |
6.0-15.0 |
6.0-12.3 |
|
30 |
762 |
7.0-21.0 |
7.0-20.0 |
7.0-19.0 |
7.0-18.0 |
7.0-17.5 |
7.0-17.0 |
7.0-16.0 |
6.0-12.3 |
|
32 |
813 |
7.0-22.0 |
7.0-21.0 |
7.0-20.0 |
7.0-19.0 |
7.0-18.5 |
7.0-18.0 |
7.0-17.0 |
6.0-12.3 |
|
34 |
864 |
7.0-23.0 |
7.0-22.0 |
7.0-21.0 |
7.0-20.0 |
7.0-19.5 |
7.0-19.0 |
7.0-18.0 |
6.0-12.3 |
|
36 |
914 |
8.0-24.0 |
8.0-23.0 |
8.0-22.0 |
8.0-21.0 |
8.0-20.5 |
8.0-20.0 |
8.0-19.0 |
6.0-12.3 |
|
38 |
965 |
8.0-25.0 |
8.0-24.0 |
8.0-23.0 |
8.0-22.0 |
8.0-21.5 |
8.0-21.0 |
8.0-20.0 |
6.0-12.3 |
|
40 |
1016 |
8.0-26.0 |
8.0-25.0 |
8.0-24.0 |
8.0-23.0 |
8.0-22.5 |
8.0-22.0 |
8.0-21.0 |
6.0-12.3 |
|
42 |
1067 |
8.0-26.0 |
8.0-25.0 |
8.0-24.0 |
8.0-23.0 |
8.0-22.5 |
8.0-22.0 |
8.0-21.0 |
6.0-12.3 |
|
44 |
1118 |
9.0-27.0 |
9.0-26.0 |
9.0-24.5 |
9.0-23.5 |
9.0-22.8 |
9.0-22.0 |
9.0-21.0 |
6.0-12.3 |
|
46 |
1168 |
9.0-27.0 |
9.0-26.0 |
9.0-24.0 |
9.0-23.5 |
9.0-22.8 |
9.0-22.0 |
9.0-21.0 |
6.0-12.3 |
|
48 |
1219 |
9.0-28.0 |
9.0-27.0 |
9.0-25.4 |
9.0-24.0 |
9.0-23.5 |
9.0-23.0 |
9.0-22.0 |
6.0-12.3 |
|
52 |
1321 |
9.0-28.0 |
9.0-27.0 |
9.0-25.4 |
9.0-24.2 |
9.0-23.5 |
9.0-23.0 |
9.0-22.0 |
6.0-12.3 |
|
56 |
1422 |
10.0-29.0 |
10.0-28.0 |
10.0-26.0 |
10.0-24.5 |
10.0-23.8 |
10.0-23.0 |
10.0-22.0 |
6.0-12.3 |
|
60 |
1524 |
10.0-29.0 |
10.0-28.0 |
10.0-26.0 |
10.0-24.5 |
10.0-23.8 |
10.0-23.0 |
10.0-22.0 |
6.0-12.3 |
|
64 |
1626 |
10.0-30.0 |
10.0-29.0 |
10.0-27.0 |
10.0-25.4 |
10.0-24.8 |
10.0-24.0 |
10.0-23.0 |
6.0-12.3 |
|
68 |
1727 |
10.0-30.0 |
10.0-29.0 |
10.0-27.0 |
10.0-25.4 |
10.0-24.8 |
10.0-24.0 |
10.0-23.0 |
6.0-12.3 |
|
72 |
1829 |
10.0-30.0 |
10.0-29.0 |
10.0-27.0 |
10.0-25.4 |
10.0-24.8 |
10.0-24.0 |
10.0-23.0 |
6.0-12.3 |
Tolerance of Outside Diameter and Wall Thickness
|
Types |
Standard |
|||||
|
SY/T5040-2000 |
SY/T5037-2000 |
SY/T9711.1-1977 |
ASTM A252 |
AWWA C200-97 |
API 5L PSL1 |
|
|
Tube end OD deviation |
±0.5%D |
±0.5%D |
-0.79mm～+2.38mm |
<±0.1%T |
<±0.1%T |
±1.6mm |
|
Wall thickness |
±10.0%T |
D<508mm, ±12.5%T |
-8%T～+19.5%T |
<-12.5%T |
-8%T～+19.5%T |
5.0mm<t<15.0mm, ±0.11="" <="" p="" style="padding: 0px; margin: 0px;"> |
|
D>508mm, ±10.0%T |
T≥15.0mm, ±1.5mm |
|||||
Chemical Composition and Mechanical Properties
|
Standard |
Grade |
Chemical Composition(max)% |
Mechanical Properties(min) |
|||||
|
C |
Mn |
Si |
S |
P |
Yield Strength(Mpa) |
Tensile Strength(Mpa) |
||
|
GB/T700-2006 |
A |
0.22 |
1.4 |
0.35 |
0.050 |
0.045 |
235 |
370 |
|
B |
0.2 |
1.4 |
0.35 |
0.045 |
0.045 |
235 |
370 |
|
|
C |
0.17 |
1.4 |
0.35 |
0.040 |
0.040 |
235 |
370 |
|
|
D |
0.17 |
1.4 |
0.35 |
0.035 |
0.035 |
235 |
370 |
|
|
GB/T1591-2009 |
A |
0.2 |
1.7 |
0.5 |
0.035 |
0.035 |
345 |
470 |
|
B |
0.2 |
1.7 |
0.5 |
0.030 |
0.030 |
345 |
470 |
|
|
C |
0.2 |
1.7 |
0.5 |
0.030 |
0.030 |
345 |
470 |
|
|
BS En10025 |
S235JR |
0.17 |
1.4 |
- |
0.035 |
0.035 |
235 |
360 |
|
S275JR |
0.21 |
1.5 |
- |
0.035 |
0.035 |
275 |
410 |
|
|
S355JR |
0.24 |
1.6 |
- |
0.035 |
0.035 |
355 |
470 |
|
|
DIN 17100 |
ST37-2 |
0.2 |
- |
- |
0.050 |
0.050 |
225 |
340 |
|
ST44-2 |
0.21 |
- |
- |
0.050 |
0.050 |
265 |
410 |
|
|
ST52-3 |
0.2 |
1.6 |
0.55 |
0.040 |
0.040 |
345 |
490 |
|
|
JIS G3101 |
SS400 |
- |
- |
- |
0.050 |
0.050 |
235 |
400 |
|
SS490 |
- |
- |
- |
0.050 |
0.050 |
275 |
490 |
|
|
API 5L PSL1 |
A |
0.22 |
0.9 |
- |
0.03 |
0.03 |
210 |
335 |
|
B |
0.26 |
1.2 |
- |
0.03 |
0.03 |
245 |
415 |
|
|
X42 |
0.26 |
1.3 |
- |
0.03 |
0.03 |
290 |
415 |
|
|
X46 |
0.26 |
1.4 |
- |
0.03 |
0.03 |
320 |
435 |
|
|
X52 |
0.26 |
1.4 |
- |
0.03 |
0.03 |
360 |
460 |
|
|
X56 |
0.26 |
1.1 |
- |
0.03 |
0.03 |
390 |
490 |
|
|
X60 |
0.26 |
1.4 |
- |
0.03 |
0.03 |
415 |
520 |
|
|
X65 |
0.26 |
1.45 |
- |
0.03 |
0.03 |
450 |
535 |
|
|
X70 |
0.26 |
1.65 |
- |
0.03 |
0.03 |
585 |
570 |
|
Katherine A. Fogg
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