| Payment Type: | L/C,T/T,D/P |
| Incoterm: | FOB,CFR,CIF,EXW |
| Transportation: | Ocean,Land,Express |
| Port: | Tianjin,Qingdao,Shanghai |
Model No.: Q195 Q235 Q345
Standard: Bs, Gb, Astm, Jis, Din, Api
Material: Cr-Mo Alloy, St35-St52, 10#-45#, Q195-Q345, A53-A369
Section Shape: Round
Place Of Origin: China
Application: Fluid Pipe, Gas Pipe, Oil Pipe, Structure Pipe
Production Process: Erw
Certification: Ce, Api
Special Tube: Api Pipe
Whether Alloy: Non-Alloy
Tolerance: ±1%
Category: Welded Steel Pipe
Processing Service: Bending, Welding, Decoiling, Punching, Cutting
| Selling Units | : | Ton |
| Package Type | : | Standard marine packaging, or as required by the customer |
| Picture Example | : |
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Welded Steel Pipe, also known as Welded Pipe, is a steel pipe made by welding steel plates or strips after being rolled and formed. Welded steel pipes are divided into straight seam welded pipes and spiral welded pipes according to the form of welds. Classified by production method: arc welded pipe, resistance welded pipe,( 63426048,high-frequency, low-frequency) gas welded pipe, furnace welded pipe. The production process of straight seam welded pipe is simple, with high production efficiency, low cost, and rapid development. The strength of spiral welded pipes is generally higher than that of straight seam welded pipes. Narrow billets can be used to produce larger diameter welded pipes, and billets of the same width can also be used to produce welded pipes of different diameters. However, compared to straight seam pipes of the same length, the weld length increases by 30-100% and the production speed is lower. Thick wall coil products include: large coil, large diameter thick wall coil, various materials thick wall coil, hot rolled thick wall coil, cold rolled thick wall coil, etc.
The production process of straight seam welded pipe is simple, with high production efficiency, low cost, and rapid development. The strength of spiral welded pipes is generally higher than that of straight seam welded pipes. Narrow billets can be used to produce larger diameter welded pipes, and billets of the same width can also be used to produce welded pipes of different diameters. However, compared to straight seam pipes of the same length, the weld length increases by 30-100% and the production speed is lower. Therefore, smaller diameter welded pipes mostly use straight seam welding, while larger diameter welded pipes mostly use spiral welding.Straight seam welded pipes are divided into longitudinal submerged arc welding (LSAW) and electric resistance welding (ERW).
Product Specification
| Description | ERW Steel Pipe(Electric Resistance Welded Pipe), A53 ERW Pipe, ERW Carbon Steel Pipe |
| Standards | API 5L ERW PSL1/PSL2, EN39, BS1139, BS1387, EN10255, ASTM A53, A500, A36, A795, ANSI C80, DIN2440, JIS G3444, GB/T3091, GB/T13793 |
| Certificate | API 5L ERW PSL1/PSL2, API 5CT, CE, ISO |
| Material | Q195, Q215, Q235, Q275, Q295, Q345, S275, S355, 08F, 08, 08AL, 08F, 10F, 10, HG5, DF08 SPHC, M8 |
| ASTM A53: Gr.A, Gr.B, Gr.C, Gr.D | |
| API 5L: Gr.A, Gr.B, X42, X46, X52, X56, X60, X65, X70 | |
| GB/T9711: L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555 | |
| ASTM A252: Gr.1 Gr.2 Gr.3 | |
| Type | ERW(Electric Resistance Welding), LSAW(Longigudinally Submerged Arc Welding) |
| Outside Diameter | 219mm(8")- 3520mm(138") (1/8 inch, 1/4 inch, 1/2 inch, 3/4 inch, 1inch, 1 1/4 inch, 1 1/2 inch, 2inch, 2 1/2 inch, 3inch, 3 1/2 inch, 4inch, 5 inch, 6inch, 8 inch, 10 inch, 12inch, 14inch, 16 inch, 18 inch, 20 inch, 22 inch, 24 inch, 26inch, 28 inch, 30 inch, 32 inch, 34 inch, 36 inch, 38 inch, 40 inch, 42 inch, 44 inch, 46 inch, 48 inch) |
| Thickness | 3mm~220mm (SCH5,SCH10,SCH20,SCH30,STD,SCH40,SCH60,XS, SCH80,SCH100,SCH120,SCH140,SCH160, XXS) |
| Length | 6m-12m, or as required |
| Outside Coating | Anti-rust oil, black painting. |
| Epoxy Coating according to AWWA C-210 | |
| Bitumen Coating according to DIN30672, BS534 | |
| Coal- Tar Enamel Coating according to AWWA C-203 | |
| 3 Layer polyethylene Coating according to DIN30670 | |
| 3 Layer Polypropylene Coating according to DIN30678 | |
| Inside Coating | Epoxy lining according to AWWA C-210 |
| Bitumen Lining according to DIN30673, BS534 | |
| Coal-Tar Enamel Lining according to AWWA C-203 | |
| Cement Mortar Lining according to AWWA C-205, BS534 | |
| Testing and Inspection Reports | EN 10204 3.1, Mill TC EN 10204 3.1, Third Party Inspection Reports, Visual Inspection Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Chemical and Mechanical Reports, NABL Approved Lab |
| Price Term | EX-Work, FOB, CFR, CIF |
| Package | Wooden box, bundled for export standard or as required |
| Payment Term | T/T, L/C, |
| Delivery Time | 25-45 days (based on quantity) after receiving advanced payment |
| Application | a) General service industries (petroleum, food, chemical, paper, fertilizer, fabric, aviation and nuclear) b) Fluid, gas and oil transport c) Pressure and heat transmission d) Construction and ornament e) Boiler heat exchangers |
Chemical Composition and Mechanical Properties of ERW Steel Pipe
| Standard | Grade | Chemical Composition(max)% | Mechanical Properties(min) | |||||
| C | Mn | Si | S | P | Yield Strength (Mpa) | Tensile Strength (Mpa) | ||
| GB/T700-2006 |
Q235A | 0.22 | 1.4 | 0.35 | 0.050 | 0.045 | 235 | 370 |
|
Q235B | 0.2 | 1.4 | 0.35 | 0.045 | 0.045 | 235 | 370 | |
|
Q235C | 0.17 | 1.4 | 0.35 | 0.040 | 0.040 | 235 | 370 | |
| Q235D | 0.17 | 1.4 | 0.35 | 0.035 | 0.035 | 235 | 370 | |
| GB/T1591-2009 |
Q345A | 0.2 | 1.7 | 0.5 | 0.035 | 0.035 | 345 | 470 |
|
Q345B | 0.2 | 1.7 | 0.5 | 0.030 | 0.030 | 345 | 470 | |
|
Q345C | 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/PSL2 | 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 | |
Butt-welded pipe is formed by feeding a hot steel plate through shapers that will roll it into a hollow circular shape. Forcibly squeezing the two ends of the plate together will produce a fused joint or seam.
Packaging And Transportation
We offer different modes of transport depending on the customer's destination: rail transport and ship transport，etc.The Shipping Mark shall consist of: Trade mark, Seller's name, Product name, Applicable standards,Specifications, Package No., Contract No., Heat No., Production date, Weighing method, Net weight, Gross Weight, Consignee and Protection symbols, etc.
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