LSAW Steel Pipe with Internal Epoxy Lining API 5L / En 10219 for Corrosive Fluid Transport
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Product Highlights
- High Strength & Pressure Resistance: Suitable for long-distance oil/gas pipelines and high-pressure transmission scenarios.
- Excellent Corrosion Resistance: Features anti-corrosion coatings and surface treatments to isolate from corrosive media.
- Structural Stability: Uniform stress distribution reduces concentration and prolongs service life.
- High Dimensional Accuracy: Advanced production ensures precise diameter, wall thickness, and length with strict tolerances.
- Wide Application Range: Used in oil/gas, water transmission, engineering, offshore, and thermal power plants.
- Multiple Manufacturing Processes: Available in UOE and JCOE forming methods for diverse production needs.
- Comprehensive Quality Control: 100% inspection including visual and functional checks with BV and SGS certification.
- Flexible Customization Options: Supports full customization, minor customization, and customization from samples or designs.
Product Attributes
- Customization
- Available
- Type
- LSAW
- Technique
- Hot Rolled
- Material
- Carbon Steel
- Surface Treatment
- Black
- Usage
- Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
- Section Shape
- Round
- Product Name
- LSAW Steel Pipe
- Keywords
- Steel Pipe & Tube
- Outer Diameter
- 355.6mm-2320mm
- Wall Thickness
- 7-50mm
- Length
- 5.8m-32m
- Ends
- Black Ends / Beveled Ends / Plain Ends
- Surface Treatment -01
- Bare,Black Painting,Varnished
- Surface Treatment -02
- Galvanized,Anti-Corrosion Coating,etc
- Application
- Oil/Gas/Water Transmission/Engineering/Offshore
- Standard -01
- API 5L Psl1/Psl2 Gr.a, Gr.B, X42, X46, X52, X56
- Standard -02
- ASTM A53/A252/A500/A672/A691/A139
- Standard -03
- En10025/En10210/En10219/En10217/En10208/En10297
- Standard -04
- As1163/JIS G3457/JIS G3101/DIN 17100
- Quality Control
- 100% Inspection
- MOQ
- Low MOQ
- Transport Package
- Standard Shipping Packaging or Customized
- Specification
- Standard specifications or customized
- Trademark
- USI
- Origin
- Hunan, China
- Production Capacity
- 50000 Tons/Year
Product Images of LSAW Steel Pipe with Internal Epoxy Lining API 5L / En 10219 for Corrosive Fluid Transport
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Product Description
LSAW(Longitudinally Submerged Arc Welding) Pipe can be divided into UOE and JCOE pipe according to their processing methods. LSAW steel pipe has the characteristics of relatively simple process and fast continuous production, and has widely used in oil and gas, water transmission, engineering, offshore projects.
Process
The three main forming steps of the UOE LSAW pipe forming process include: steel plate pre-bending, U forming and O forming. Each process uses a special forming press to complete the three processes of steel plate pre-bending, U forming, and O forming in sequence, so that the steel plate is deformed into a round tube.
After several steps of stamping on the JCO forming machine, first half of the steel plate is pressed into a "J" shape, and then the other half of the steel plate is pressed into a "J" shape to form a "C" shape, and finally an open "O" is formed by pressing from the middle Type tube blank.
Application
LSAW steel pipe is widely used in the energy field due to its advantages such as high strength, good pressure resistance, and high dimensional accuracy. It is the main pipe material for long-distance oil and natural gas pipelines, ensuring a stable energy supply. It is also used in cooling water pipelines and coal pipelines in thermal power plants, helping develop the power industry.
|
UOE LSAW PIPE |
|
Outside Diameter:Φ508mm - 1118mm (20"- 44") |
|
Wall Thickness: 6.0 - 25.4mm 1/4"-1" |
|
Quality Standards: API,DNV,ISO,DEP,EN,ASTM,DIN,BS,JIS,GB,CSA |
|
Length: 9 - 12.3m (30'- 40') |
|
Grades: API 5L A-X90, GB/T9711 L190-L625 |
|
JCOE LSAW Pipe |
|
Outside Diameter:Φ406mm - 1626mm (16" - 64" ) |
|
Wall Thickness:6.0 - 75mm (1/4" - 3" ) |
|
Quality Standards:API,DNV,ISO,DEP,EN,ASTM,DIN,BS,JIS,GB,CSA |
|
Length:3 - 12.5m ( 10'- 41' ) |
|
Grades:API 5L A-X100, GB/T9711 L190-L690 |
| Specification | |||||||||
|
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 of LSAW Steel Pipe | ||||||
|
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 |
|
D>508mm, ±10.0%T |
T≥15.0mm, ±1.5mm |
|||||
| Chemical Composition and Mechanical Properties of LSAW Steel Pipe | ||||||||
|
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 |
|
Using high-quality steel as raw materials, it is processed through strict quality control and advanced production technology. It has high tensile strength and yield strength, can withstand large pressure and load, and is suitable for various high-pressure transmission and load-bearing scenarios.
The stress distribution of its straight seam structure is relatively uniform when it is under stress. Compared with other pipes such as spiral welded pipes, it is not easy to have stress concentration, which further enhances the overall structural stability of the pipeline, prolongs its service life, and reduces maintenance costs.
Usually, professional surface treatment is performed, such as sandblasting and rust removal, coating with anti-corrosion coatings, etc. These coatings can effectively isolate the pipeline from contact with external corrosive media, greatly improving the corrosion resistance of the pipeline.
Adopting advanced production technology, the dimensional accuracy of the pipeline can be accurately controlled, including parameters such as pipe diameter, wall thickness, length, etc., with small dimensional deviation and a strict tolerance range within the standard range.
The characteristics of high strength, corrosion resistance, and reliable welding quality make the service life of LSAW pipes relatively long. Under normal use and maintenance, it can operate stably for a long time, reducing the replacement frequency and maintenance cost of the pipeline.




Q: Are you a manufacturer?
A: Yes, we are a manufacturer, we have our own factory, and we are leading in producing and exporting steel pipes, galvanized steel pipes, hollow profiles, galvanized hollow profiles, etc. We guarantee that we are what you are looking for.
Q: Can we visit your factory?
A: Warmly welcome, we will pick you up once we get your schedule.
Q: Do you have quality control?
A: Yes, we have obtained BV and SGS certification.
Q: Can you arrange shipment?
A: Of course, we have a fixed freight forwarder, can get the best price from most shipping companies, and provide professional service.
Q: How long is your delivery time?
A: The specific time depends on the quantity you purchase.
Q: How can we get a quotation?
A: Please provide product specifications, such as material, size, shape, etc., so that we can give the best quotation.
Q: Can we get some samples? Is it charged?
A: Yes, we can provide samples for free, but do not pay for the freight. If you place an order after confirming the sample, we will refund your express freight or deduct it from the order amount.
Q: How can we pay?
A: Accepted delivery terms: FOB, CFR, CIF, EXW, FCA, DDP, DDU, Express; Accepted payment methods: T/T, L/C, Credit Card, Western Union, Cash
About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASI259014". Items marked "" are certified.
Company Profile
Union Steel Industry Co., Ltd as member of United Steel Industry Group, specialized in steel pipe and pipe fittings designing, manufacturing, stocking and exporting in China. As one of the leading manufacturer of steel pipe products in China, Union Steel Industry Co., Ltd are committed to providing one-stop service to customers around the world.
Union Steel Industry Co., Ltd has leading technology of steel pipe production and research at home and abroad, advanced and complete testing facilities. We strictly in accordance with the ISO 9001 quality management system for on-site management, SGS, BV, TUV, ABS, LR, GL, DNV, CCS, RINA, RS and other authoritative TPI organizations. For years, steel pipe products supplied by Union Steel Industry have been widely applied in engineering projects such as oil and gas extraction, water transportation, urban pipeline network construction, offshore & onshore pipeline construction, mining industry, chemical industry and power generation industry pipeline construction. Our partners are throughout Southeast Asia, the Middle East, Europe, Africa, South America, Oceania, and more than 100 countries and regions. We also provide many steel pipe products and services to the worlds top 500 petroleum and gas, EPC companies, such as: PetroChina, Schlumberger, ADNOC, NNPC, ENI, NICO, EGPC, OXY, CCE, OGDCL, PEMEX, etc.
Adhering to our principle of"quality first, win-win cooperation", we are confident to supply customers with high quality products at very competitive prices. Union Steel Industry Co., Ltd will always be you the most professional and reliable business partner.
About Our Factory & Business Background
-
Business Type
- Trading Company
- Address
- No. 380, Huijin Industry Park, Furong Road, Changsha City Hunan Province, Changsha, Hunan, China
-
Plant Area
- 160 square meters
-
Number of Employees
- 18
-
Registered Capital
- 10,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
- Peak Season Lead Time, one month, Off Season Lead Time, one month
-
Nearest Port
- Tianjin Port;Shanghai Port;
-
Minimum Order Quantity
- 2 Tons
-
Supply Chain Partners
- 100
Our Production Capability & Technical Expertise
-
Main Products
- Steel Pipe, Seamless Steel Pipe
-
Inspection Type for Finished Products
- 100% inspection Visual inspection Function inspection
-
Inspection Method for Finished Products
- Have instruction but no written records
-
Customization Options
- Customization from Samples,Customization from Designs,Full Customization,Minor Customization,Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 1 people
-
Traceability of Raw Materials
- No
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2023-01-18
-
Export Year
- 1 years
-
Main Markets
- Europe
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 15
-
Overseas Agent/Branch
- No
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- ISO9001:2015
-
Cooperated with Fortune 500
- No
FAQ
- Are you a manufacturer?
- Yes, we are a manufacturer, we have our own factory, and we are leading in producing and exporting steel pipes, galvanized steel pipes, hollow profiles, galvanized hollow profiles, etc. We guarantee that we are what you are looking for.
- Can we visit your factory?
- Warmly welcome, we will pick you up once we get your schedule.
- Do you have quality control?
- Yes, we have obtained BV and SGS certification.
- Can you arrange shipment?
- Of course, we have a fixed freight forwarder, can get the best price from most shipping companies, and provide professional service.
- How long is your delivery time?
- The specific time depends on the quantity you purchase.
- How can we get a quotation?
- Please provide product specifications, such as material, size, shape, etc., so that we can give the best quotation.
- Can we get some samples? Is it charged?
- Yes, we can provide samples for free, but do not pay for the freight. If you place an order after confirming the sample, we will refund your express freight or deduct it from the order amount.
- How can we pay?
- Accepted delivery terms: FOB, CFR, CIF, EXW, FCA, DDP, DDU, Express; Accepted payment methods: T/T, L/C, Credit Card, Western Union, Cash
Send your message to this supplier
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