| Size | OD(Outer Diameter) | 15mm-168mm) |
| WT(Wall Thickness) | 0.5-2.75mm. SCH10s,SCH40s,STD,XS,SCH80, SCH160,XXS etc. | |
| ZINC COATED | 1)Pre-galvanized steel pipe:Z40-80g/m2 2)Hot dip galvanized steel pipe:Z200-520g/m2 | |
| 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 | BS1387,EN10297,BS6323,BSEN10217,GB/T13793-1992, GB/T14291-2006,GB/T3091-1993,GB/T3092-1993,GB3640-88, ASTM A53/A36,EN39/EN10219,API 5L,GB/T9711.1-99 etc | |
| Section shape | Round/Square/Rectangular | |
| Type | Welded Pipe | |
| Technique | Electronic Resistance Welded (ERW ) Electronic Fusion Welded (EFW) Double Submerged Arc Welded (DSAW) | |
| Welded Line Type | Longitudinal | |
| Ends | 1)Plain2)Beveled3)Thread with Coupling or cap | |
| End protector | 1) Plastic pipe cap2) Iron protector | |
| Surface Treatment | 1) Bared 2) Black Painted (varnish coating) 3) Galvanized 4) With Oiled 5) 3 PE, FBE, corrosion resistant coating | |
| Inspection | With Hydraulic Testing, Eddy Current , Infrared Test | |
| Class A test pressure | 4.83MPa-13.10Mpa | |
1)in bundle
2)in water-proof paper bags or poly-woven bags or plastic woven cloth
3) as customers' demand
SHANDONG TONGMAO SPECIAL STEEL CO., LTD is reputed at supplying stainless steel pipe, carbon steel seamless pipe ,alloy steel pipe, hot-rolled steel pipe, cold rolled steel pipe, galvanized steel pipe, welded steel pipe, precision steel pipe , also supply steel plate , steel coil and lead sheet etc.
Our Company combined production, trade, the development of new products and services together , is one of the provincial large-scale iron and steel enterprises. Factory products standards are qualified to meet ISO\GB\ ASTM \ EN \ BS \ JIS etc.
Our company insists the principle of honesty and trustworthiness, has received trust and support from both the domestic and foreign manufacturers.
We will always adhere to the belief of credibility is the life to develop international market, and try our best to be skilled, highly responsible team ,through win-win cooperation, to meet the brilliant tomorrow!
