Hebei Shengtian Pipe Fittings Group Co., Ltd.
Hebei Shengtian Pipe Fittings Group Co.,Ltd. Base on China,Service the world
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ASTM A53 BS1387 Exteral 3lpe Coated And Internal Epoxy Coated Galvanized Welded ERW Steel Pipe
ERW steel pipe processes are available for tube and pipe production. While each process has different characteristics, all ERW processes have one thing in common–all of them produce a forged weld.
A forged weld is created by applying a combination of heat and pressure, or forging force, to the weld zone. A successful forged weld uses the optimum amount of heat, which is normally slightly less than the melting point of the material, and a nearly simultaneous application of circumferential pressure to the section, which forces the heated edges together.
As the name implies, the heat generated by the weld power is a result of the material’s resistance to the flow of electrical current. The pressure comes from rolls that squeeze the tube into its finished shape.
The two main types of ERW are high-frequency (HF) and rotary contact wheel.
ERW Steel Pipe Detail information
| Material | Q195 → Grade B, SS330,SPHC, S185 Q215 → Grade C,CS Type B,SS330, SPHC Q235 → Grade D,SS400,S235JR,S235JO,S235J2 Q345 → SS500,ST52 | ||
| Standard | API,ASTM,JIS,GB,EN BS EN10296,BS EN10025,BS EN10297,BS6323, BSEN10219,BSEN10217,GB/T13793-1992,GB/T14291-2006 GB/T3091-1993,GB/T3092-1993,GB3640-88 | ||
| Surface | Bared Black Painted (varnish coating) Galvanized With Oiled PE, FBE, corrosion resistant coating | ||
| Thickness Tolerance | +/- .2% | ||
| Packing | 1) Bundle, 2) In Bulk 3) Bags 4) Clients' Requirements 5)Seaproof packing or up to you | ||
| Technique | Electronic Resistance Welded (ERW ) Electronic Fusion Welded (EFW) Double Submerged Arc Welded (DSAW) | ||
| Delivery Port | Tianjin,Qingdao China | ||
| Lead Time | Up to order quantity | ||
| Inspection | With Hydraulic Testing, Eddy Current , Infrared Test | ||
| MOQ | 5 Tons per size | ||
| Production Capacity | 60000MT per month | ||
| Main Market | America(North and South), Africa, Southeast of Asia, Russia and Australia | ||
