Product Description:
LSAW steel pipe (Longitudinally Submerged Arc Welding abbreviated is a professional expression term for LSAW steel pipe. It uses a single medium and thick plate as the raw material, and the steel plate is pressed (rolled) into a tube blank in a mold or a forming machine. The pipe is produced by submerged arc welding and expanded diater. In the construction of high strength, high toughness and high quality long-distance oil and gas pipelines, most of the steel pipes required are large-diameter thick wall straight seam submerged arc welded pipes.
According to API standards, in large oil and gas pipelines, straight seam submerged arc welding pipe is the only designated applicable pipe type when it passes through class 1 and class 2
areas such as alpine zone, seabed and densely populated urban areas. According to the forming way, it can be divided into:
UOE welded pipe: sheet steel plate at the edge of pre-bending, after U forming, O forming, internal welding, external welding, mechanical cold expanding process;
JCOE welded pipe: namely according to the "J-C-O-E" pre-welding, forming, after welding through cold expanding and other processes;
HME welded pipe: it is formed by mandrel rolling method according to "C-C-O", after welding, it goes through cold expanding and other processes
Specification:
UOE SAWL PIPES
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 SAWL PIPES
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:3-48m
Grades:API 5L A-X100, GB/T9711 L190-L690
Tolerance of Outside Diameter and Wall Thickness
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 |
| 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 |
Types of galvanized steel pipe
| STANDARDS |
PRODUCTS |
RANGES |
| IS:1239 (Part-I) |
Mild Steel Tubes, Tubular |
15mm NB - 150mm NB |
| IS:1161 |
Mild Steel Tubes for Structural purpose |
15mm NB - 200mm NB |
| IS:3601 |
Mild Steel tubes for Mechanical & General Eng. purpose |
20mm x 0.80mm to 165.10 x 7.00 mm |
| IS:3589 |
ERW Pipes for water Gas & Sewage |
168.3 x 4.00 mm to 219.1 x 7.00mm |
| IS:9295 |
Steel Tubes for Idlers for Belt conveyors |
63.5 x 4.00 mm to 219.1 x 7.0 mm |
| IS:4270 |
Steel Tubes for Water Wells |
114.3 x 5.00mm to 219.1mm x 7.1mm |
| IS:7138 |
Steel Tubes for furniture |
20.0 x .60mm to 60.0 x 2.0mm |
| IS:4923 |
Hollow Steel sections for structural purpose |
12.5 x 12.5 x 0.80 to
150 x 150 x 6.0mm
10 x 20 x 0.80mm to
150 x 200 x 6.0mm |
| IS:3074 |
Steel Tubes for Automobile purpose |
19.7 x 1.00mm to 101.6 x 6.0mm |
| BS:1387 |
Screwed & Socket Steel Tubes & Tubular |
½"NB to 6″NB 2.00 mm - 5.40 mm wall thick |
| BS:3601 |
Steel Pipes & Tubes for pressure purpose |
½"NB to 6″NB 2.00 mm - 7.00 mm wall thickness |
| BS:6323 |
Steel tubes for mechanical & general engineering purposes |
21.3″ to 219.1mm OD wall thickness-1.60-7.00 mm |
Latest LSAW coating project order:
Whole Services:
About us:
1.Pipe:
Permanent Steel Manufacturing Co.,Ltd has been committed to being a major supplier of quality kinds of carbon steel pipe, stainless steel tube, hollow section numerous types of piping equipments including Bend, Cap, Coupling, Elbow, Reducer, Stub End, Tee, Olet, Joint, Gasket, etc.
The Products from Permanent Steel Manufacturing Co.,Ltd are supplied in accordance with appropriate International Standards as well as Customer Specifications in a large variety of steel grades and dimensions. Permanent Steel Manufacturing Co.,Ltd on a 250,000 m2 area and has three production units: Foundry, Rolling and Extrusion mills. Permanent Steel Manufacturing Co.,Ltd operates under strict quality, environmental, as well as health and safety management systems, in compliance with ISO 9001, ISO 14001 and OHSAS 18001 standards. We have six spiral pipe production lines have introduced into the international advanced technique design andmanufacturing,each of them is outfitted with the whole set equipment from uncoiling to pipeindpection,packing and then Ex-work,includingun coiler, leve ling ma chine , fly welding machine ,plasma cutting machine,pipe endgrinding machine,hydrostatic testing machine,beveling machine,end expander, ultrasonic inspector for pipe body and weld seam,highlyclear X-ray image inspection system and so on.
2.Coating:
We have two advanced three-layer PE anticorrosive pipe production lines, which can carry out three-layer PE and FBE anticorrosion for steel pipe with diameter of 20mm to 1820mm, as well as epoxy asphalt anticorrosion production line, steel-plastic composite pipe production line, internal and external plastic coating and plasticlining production line, and cement mortar production line for inner wall of steel pipe. The annual anticorrosion production capacity reaches 18 million square meters. Since its establishment, the company has formed a good cooperative relationship with many domestic and foreign steel pipe manufacturers, gas companies and oil companies, and its sales network covers many countries.
Technique center:
Our customer visit:
Our team:
Our advantage:
1. Full projects reference all of the world and vendor references from the most main oil and Gas in stitute, companies, investors
2. The inspection program is full supported to the docs requirements
3. The list of producing equipment and inspection equipment will be provided
4. The relative shipping docs, third party inspection report, Mill test certification, custom appreciate letters
5. The mill certification such as API monogram , ISO ect....
7. ITP, MPS & ISO manual
8. Prices competitively level
9. Full presentation experiences and guidance
10. Engineering design & construction capacities
11. Financial supports, various of payment term could be acceptable such as L/C, T/T.
12. Free custom inspection corporation & checked corporation in CCPIT
13. Full bank supported company with a perfect line of Credit "AAAAA"
ect
FAQ
Q: How long is your delivery time?
A: Depends on pipes size and quantity. 7-10 days for stocked steel pipe and 20-40 days for new productions according to quantity.bowl shape stainless steel smoking pipe screens
Q: Do you provide samples? Is it free or extra? 201 Stainless Steel Pipe used for Food and Chemical Industry
A: Yes,we could offer free steel pipe sample for your evaluation. stainless steel pipe fitting
Q: What is your terms of payment? steel pipe
A: TT payment way, TT+LC, or 100% sight LC and usance L/C for 30-120days,the specific payment should be addressed by further discussion.
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