Spiral Steel Pipe
It 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.
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0.12-1.5mm SGCC/CGCC/St01/Galvanized/PPGI/Prepainted Galvanized/Zinc Coated/Hot Rolled/Cold Rolled/PPGL/Gl Steel Coils
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Meorient Import & Export Co.LTD
China - Hangzhou
Trading Company
Trade Capacity
Export Percentage
Nearest Port
Hangzhou,Shanghai
Accepted Delivery Terms
Employees
5-10人
Accepted Payment Currency
USD,CNY
Average Lead Time
45 Day(s)
Certifications
Product Specifications
--Product Description
Product Description
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.
The production of spiral welded steel pipes can reflect the advantages of high quality and high efficiency. The production
capacity of one spiral welded pipe unit is equivalent to 5-8 sets of straight seam welded pipe equipment. How to make multiple
pipe coiling equipment production lines meet the same production standard, that is, produce according to a unified production
process specification and quality assurance system to meet welding quality Requirements and piping manufacturing grades will be an
arduous task.
(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.
The production of spiral welded steel pipes can reflect the advantages of high quality and high efficiency. The production
capacity of one spiral welded pipe unit is equivalent to 5-8 sets of straight seam welded pipe equipment. How to make multiple
pipe coiling equipment production lines meet the same production standard, that is, produce according to a unified production
process specification and quality assurance system to meet welding quality Requirements and piping manufacturing grades will be an
arduous task.
Specification
Product Name | welded spiral steel pipe |
Material | Q235A, Q235B, Q345, L245, L290, API5L X42,X52,X60,X70,X80, OCr13,1Cr17,00Cr19Ni11,1Cr18Ni9,0Cr18Ni11Nb,ST37.0, ST35.8,ST37.2,ST45,ST52,ST52.4,STP G38,STP G42,STPT42,STS49, etc... |
Standard | SY/T5037-2000, GB/T9711.1-1997, GB/T9711.2, API-5L, SY/T5040-92, ASTM A53,A106, DIN1626,DIN1629,DIN2448,JIS G3452,JIS G3454,JIS G3455, JIS G3456,JIS G3457,JIS G3461 |
Application | Mainly used in water engineering, petroleum and natural gas industry, chemical industry, agricultural irrigation, urban construction, |
Remark | 1. Payment terms : T/T ,L/C 2. Terms of trade : FOB ,CFR,CIF ,DDP,EXW 3. Minimum order : 2 tons 4. Delivery time : Within 25 days. |
Productivity | 5000Tons per month. |
Standard | GB/T9711.1 GB/T9711.2 SY/T5037 SY/T5040 API5L |
Package | In bundles, Painting, Beveled edges, plastic caps ends, or as buyer's request. |
Used | The pipes are widely used in natural gas, offshore oil piling, petroleum, chemical |
Packing & Delivery
suitable package for the long sea transport ; In bundle with bulk ; as customer's requirements.
Company Profile
Shandong Guolian Iron and Steel CO.,Ltd which is located in beautiful Jinan city, Shandong Province of China.We mainly produce and supply hot dipped Galvanized steel coils,Galvalume coils, PPGI steel coils, Corrugated steel sheet and highway guardrail are widely applied to auto industry,household appliances,construction industry,and highway guardrail construction,etc.It specializes in manufacturing and selling hot dipped galvanized steel sheet/coil( annual 160,000 tons),corrugated steel sheet(annual 50,000 tons),and highway guardrail(annual 200,000 tons).The annual total sales is around RMB 1.85 billion Yuan,and the profit tax is around RMB 143 million Yuan.The product performance index has achieved domestic advanced standard.Our products has been wildly sold to Northeast,North China,East China,etc.and also has been exported to Mid-America,Africa,and Southeast Asia,etc.Total area of group is approximately 320 acres.The registered capital is RMB105 million Yuan,and fixed assets is RMB 500 million Yuan.Our group has more than 370 employees,including 32 senior engineers and 56 professional backbone technicians.Our group has advanced professional manufacture equipment and matured technology as well as a team of high-quality professional management and technical talents.With the strategic thought of striving for survival on the basis of quality and development on the basis of benefit,adhering to management idea of "faith,practical,innovation,and development",we have courage to challenge,and keep continuous innovation in the competition.We also do our unremitting efforts to fight bravely for creating a national brand and international brand.Holding to the intellectual businessman of style and the spirit of sincerity, all staff of our company are willing to cooperate and develop together with you.
FAQ
1. who are we?
We are based in Shandong, China, start from 2021,sell to Domestic Market(00.00%). There are total about 11-50 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Carbon Steel Sheets,Corrugated Steel Roofing Plate,Galvanized Steel Coil,Prepainted Galvanized Steel Sheet and Coil,Stainless Steel Coil
4. why should you buy from us not from other suppliers?
large storage, with competitive price, fast delivery
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,Express Delivery;
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,Western Union;
Language Spoken:English,Chinese,Spanish,German,Russian,Korean
We are based in Shandong, China, start from 2021,sell to Domestic Market(00.00%). There are total about 11-50 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Carbon Steel Sheets,Corrugated Steel Roofing Plate,Galvanized Steel Coil,Prepainted Galvanized Steel Sheet and Coil,Stainless Steel Coil
4. why should you buy from us not from other suppliers?
large storage, with competitive price, fast delivery
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,Express Delivery;
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,Western Union;
Language Spoken:English,Chinese,Spanish,German,Russian,Korean
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