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| Categories | ERW Steel Pipe | 
|---|---|
| Brand Name: | Shengtian | 
| Model Number: | ERW steel pipe 011 | 
| Certification: | ISO9000 | 
| Place of Origin: | China | 
| MOQ: | 1 Ton | 
| Price: | 1 Ton US $482/ Ton;>5 Tons US $447/ Ton | 
| Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram | 
| Supply Ability: | 2 Million Ton/Year | 
| Delivery Time: | 10-15 work days | 
| Packaging Details: | Suitable packing according to the size of the pipes | 
| Length: | 5M | 
| Thickness Tolerance: | +/- .2% | 
| Diameter: | 6mm-800mm | 
| Transport Package: | Black Paint, Bevel Send, End Caps | 
| Technique: | Cold Rolled | 
ASTM A53, A135, A252, A500, A795, API 5L API 5CT Welded Carbon Seamless ERW Steel Pipe For Oil
ERW Steel Pipe is produced in sizes from 1/8 to 24 in NPS. ERW Steel pipe is produced from flat sheet metals. ERW steel pipe is first cold formed into a cylindrical shape and then welded longitudinally. both continuous welded and elctric resistance welded pipe are made by shaping rolls of coiled steel into cylindrical forms and welding along the longitudinal seams. Picture below shows the first step of forming strips into cylindrical shape and then fusing it together in 2nd step.
Chemical Analysis and Mechanical Properties Of ERW Steel Pipe
| Standard | Class | Grade | Chemical Analysis(%) | Mechanical Properties(min)(Mpa) | ||||
| C | Mn | P | S | Tensile Strength | Yield Strength | |||
| API 5L | PSL1 | B | 0.26 | 1.20 | 0.030 | 0.030 | 414 | 241 | 
| X42 | 0.26 | 1.30 | 0.030 | 0.030 | 414 | 290 | ||
| X46 | 0.26 | 1.40 | 0.030 | 0.030 | 434 | 317 | ||
| X52 | 0.26 | 1.40 | 0.030 | 0.030 | 455 | 359 | ||
| X56 | 0.26 | 1.40 | 0.030 | 0.030 | 490 | 386 | ||
| X60 | 0.26 | 1.40 | 0.030 | 0.030 | 517 | 414 | ||
| X65 | 0.26 | 1.45 | 0.030 | 0.030 | 531 | 448 | ||
| X70 | 0.26 | 1.65 | 0.030 | 0.030 | 565 | 483 | ||
| PSL2 | B | 0.22 | 1.20 | 0.025 | 0.015 | 414 | 241 | |
| X42 | 0.22 | 1.30 | 0.025 | 0.015 | 414 | 290 | ||
| X46 | 0.22 | 1.40 | 0.025 | 0.015 | 434 | 317 | ||
| X52 | 0.22 | 1.40 | 0.025 | 0.015 | 455 | 359 | ||
| X56 | 0.22 | 1.40 | 0.025 | 0.015 | 490 | 386 | ||
| X60 | 0.22 | 1.40 | 0.025 | 0.015 | 517 | 414 | ||
| X65 | 0.22 | 1.45 | 0.025 | 0.015 | 531 | 448 | ||
| X70 | 0.22 | 1.65 | 0.025 | 0.015 | 565 | 483 | ||
| X80 | 0.22 | 1.85 | 0.025 | 0.015 | 621 | 552 | ||
Manufacturing Of ERW Steel Pipe
There are many ways for the electric current to be used for welding the rolled strip. This includes revolving copper disc, fixed alloy Cu contacts and induction coils. These methods raise the temperature of the steel edge to 2600 deg F for effective welding. The rolling process exerts so much pressure that it creates a metal welded seam on the outside and inside. These weld seams are then removed during the finishing process. The welded pipe is heat treated, inspected and hydro tested.
ERW steel pipe is available in following common specs;
ASTM A53 ERW steel pipe
A135 ERW steel pipe
A252 ERW steel pipe
A500 ERW steel pipe
A795 ERW steel pipe
API 5L ERW steel pipe
API 5CT ERW steel pipe
Most common spec for welded pipe is A53 ERW steel pipeand API 5L ERW steel pipe.

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 Round Shape A53 Grade B 114.3mm ERW Steel Tubes
                                                                                        
                                                        
                        
                        
                        
                                                            Round Shape A53 Grade B 114.3mm ERW Steel Tubes
                                                    
                        
                     Hot Dip Galvanized Seamless 10.3mm ERW Steel Pipe
                                                                                    
                        
                        
                        
                                                            Hot Dip Galvanized Seamless 10.3mm ERW Steel Pipe
                                                    
                        
                     Traight Seam A106 Grade A 14M Electric Resistance Welded Pipe
                                                                                        
                                                        
                        
                        
                        
                                                            Traight Seam A106 Grade A 14M Electric Resistance Welded Pipe
                                                    
                        
                     Welded Black Paint EN10219 3mm ERW Steel Pipe
                                                                                        
                                                        
                        
                        
                        
                                                            Welded Black Paint EN10219 3mm ERW Steel Pipe
                                                    
                        
                     Exteral PE Coated S235J2 BS1387  ERW Steel Pipe
                                                                                        
                                                        
                        
                        
                        
                                                            Exteral PE Coated S235J2 BS1387  ERW Steel Pipe
                                                    
                        
                     Hot Dipped Beveled Cut Length 6M ERW Welded Pipe
                                                                                        
                                                        
                        
                        
                        
                                                            Hot Dipped Beveled Cut Length 6M ERW Welded Pipe
                                                    
                        
                     Black Welding 800mm Schedule 40  ERW Line Pipe
                                                                                        
                                                        
                        
                        
                        
                                                            Black Welding 800mm Schedule 40  ERW Line Pipe
                                                    
                        
                     PSL2 ERW Steel Pipe
                                                                                    
                        
                        
                        
                                                            PSL2 ERW Steel Pipe
                                                    
                        
                     ASTM A53 ERW Steel Pipe
                                                                                    
                        
                        
                        
                                                            ASTM A53 ERW Steel Pipe
                                                    
                        
                     Api 5l Q235 Gi Erw Pipe Astm A53 A106 For Building
                                                                                        
                                                        
                        
                        
                        
                                                            Api 5l Q235 Gi Erw Pipe Astm A53 A106 For Building