Active Member
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[China]
Address: 18th Floor,South Tower, Parklane Plaza,No.208 South Xiaoxiang Avenue, Yuelu District, Changsha,Hunan,China
Contact name:Ada
Tianjin Xinyue Industrial and Trade Co., Ltd |
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| Product name: | Spiral Submerged-arc Welded Steel Pipe / SSAW Steel Pipe |
| Usage: | Low pressure liquid delivery, such as water, gas, and oil, Offshore Piling Pipe / Port Construction Pipe, Structure Pipe |
| Standard: | API 5L, API 5CT, ASTM A252, ASTM 53, EN10217, EN10219, BS 5950, ASTM A572 , JIS, IS, |
| Certificate: | EN10217, EN10219, API 5L PSL1/ PSL2, API 5CT |
| Out Diameter: | 219.1 - 3048mm |
| Wall Thickness: | 5 - 30mm |
| Length: | Up to 70m |
| Steel Grade: | API 5L: GR A, GR B, X42,X46, X56, X60,X65,X70 |
| ASTM A252 GR 1, GR 2, GR 3 | |
| ASTM A53: GR A, GR B, GR C, GR D | |
| BS 4360: Grade 43, Grade 50 | |
| EN: S275, S275JR, S355JRH, S355J2H | |
| Surface Treatment: | Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating as per customer’s requirement |
| Test: | Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test. |
| Mill Test Certificate: | EN 10204/3.1B |
Spiral Steel Pipe is made by rolling low-carbon carbon structural steel or low-alloy structural steel strip according to a certain spiral angle (called forming angle) into a tube blank, and then welding the tube seam together. It can be made with a narrower Strip steel produces large diameter steel pipes. Its specifications are expressed by outer diameter * wall thickness, and the welded pipe shall be ensured that the hydraulic test, the tensile strength of the weld and the cold bending performance must meet the requirements.
Advantages of spiral welded pipe:
(1) Steel pipes of different diameters can be produced using strip steel of the same width, and
steel pipes of large diameter can be produced from narrow strip steel.
(2) Under the same pressure conditions, the stress of the
spiral welded seam is smaller than that of the straight seam, which is 75% to 90% of that of the straight seam welded pipe, so it can withstand greater pressure. Compared with the straight seam welded pipe of the same outer diameter, the wall thickness can be reduced by 10% to 25% under the same pressure.
(3) The size is accurate, the general diameter tolerance does not exceed 0.12%, the deflection is less than 1/2000, and the ovality is less than 1%. Generally, the sizing and straightening process can be omitted.
(4) Continuous production is possible. In theory, long steel pipes can be produced, with small head and tail loss, and can
increase the metal utilization rate by 6% to 8%.
(5) The equipment is light in weight and low initial investment. It can be made into a trailer-type mobile unit to directly produce welded pipes at the construction site where the pipeline is laid.
Q: Whats your payment term?
A: We accepy 30% deposit, 70% balance against the copy of B/L, T/T or LC at sight, etc.
Q: What’s the main standard and steel grade for piling pipe?
A: Main standard and steel grade for piling pipe are ASTM A588/ASTM A252/ASTM A572/API 5L/EN, etc.
Q: What’s the main standard and steel grade for water transmission SSAW pipe?
A: Main standard and steel grade for water transmission SSAW pipe includes ASTM A36, ASTM A570, ASTM A907, AWWA C200/C203/CC205/C208/C210/C213.
Q: What’s the main application for SSAW steel pipe?
A: Xinyue SSAW steel pipe is widely applied in petroleum and natural gas transmission, urban heating network, water supply pipeline, sewage discharge, steel structure, bridges, foundation piling, port machinery and electrical power, etc.
Q: How much production line do your mill have?
A: Our mill has equipped with 6 double-submerged are spiral welding production line, with a team of 450 worker, 67 senior engineers and technicians, the annual production capacity can reach 450,000 tons.
