Industry Overview
Spiral submerged arc welded (SSAW) pipe is a spirally welded steel pipe manufactured using the double-sided submerged arc welding method. The spiral welding process enables large-diameter pipes to be produced from narrower plates or hot-rolled coils, providing an economical manufacturing route while supporting applications requiring the transportation of large volumes of fluids and gases.
Historically, spiral welded pipes were primarily associated with low-pressure and structural applications. Advances in submerged arc welding technology, the availability of large hot-rolled coils with suitable widths, and dependable non-destructive testing methods have expanded their use into high-pressure service. Modern SSAW pipes have been used in high-pressure gas pipeline applications in Russia, Canada, and Asian countries.
Spiral welded pipes are used across oil and gas pipelines, power plants, water and sewerage systems, structural applications, and other industrial sectors. Their principal manufacturing characteristics include a continuous spiral seam and the ability to produce large diameters from relatively narrower raw material. Weld-related defects are mainly associated with the submerged arc welding process and are similar in nature to those encountered in longitudinally welded SAW pipe.
Cost Estimation
| Particulars | Cost / Value |
|---|---|
| Plant Capacity | 200 MT/Day |
| Land & Building (8000 sq.mt.) | Rs. 15 Cr |
| Plant & Machinery | Rs. 4.06 Cr |
| Working Capital for 3 Months | Rs. 71.69 Cr |
| Total Capital Investment | Rs. 91.97 Cr |
| Rate of Return | 68% |
| Break Even Point | 22% |
Content Index
- INTRODUCTION
- (A) SPIRAL WELDED PIPE
- PROPERTIES
- OIL AND GAS PIPELINE
- POWER PLANT
- WATER & SEWERAGE
- STRUCTURAL
- OTHER INDUSTRIAL
- PHYSICAL PROPERTIES OF PIPING MATERIALS
- MALLEABILITY
- DUCTILITY
- BRITTLENESS
- ELASTICITY
- CONDUCTIVITY
- CHEMICAL RESISTANCE/ RESISTANCE TO CORROSION
- B.I.S. SPECIFICATION
- MANUFACTURING PROCESS
- (A) FOR SPIRAL WELDED PIPE
- PROCESS FLOW CHART FOR SPIRAL WELDED PIPE
- MANUFACTURING PROCESS OF SPIRAL WELDED PIPE
- STEPS ARE GIVEN BELOW
- (1) PRODUCTION METHODOLOGY
- (2) GEOMETRIC MONITORING
- (3) END SHEARING, BUTT WELDING AND SIDE GUIDE ROLLERS
- (4) THE MAKING OF SPIRAL WELD PIPES
- (5) WELDING OF PIPE
- (6) CUTTING OF PIPE
- (7) TESTING OF PIPE
- ULTRA-SONIC TESTING
- X-RAY TEST AND FLUOROSCOPY
- HYDRO TESTING
- (8) FINAL INSPECTION, VISUAL CHECKING, WEIGHING AND MEASURING
- (9) COATING OF PIPE
- EXTERNAL COATING
- INTERNAL COATING
- (10) FINAL MARKING
- PLANT AND MACHINERY
- (1) UNCOILER
- (2) LAVELER
- (3) SHEAR AND WELDER
- HIGH QUALITY WELDING SEAM.
- 1. SWITCHGEAR RECTIFYING CABINET
- 2. INVERTER OUTPUT CABINET
- 3. CONNECTING OPTICAL FIBER
- 4. CIRCULATION SOFT WATER COOLING SYSTEM
- 5. CENTRAL OPERATION CONSOLE
- 6. MECHANICAL ADJUSTMENT DEVICE
- (4) ACCUMULATOR
- ACCUMULATOR
- THE HORIZONTAL SPIRAL ACCUMULATOR FOR WELDED PIPE LINE
- (5) FORMING AND SIZING SECTION
- FORMING AND SIZING MILL
- MATURE TECHNOLOGY FOR ROLLER COMPATIBILITY
- OPTIMIZED FORMING
- EDGE BENDING
- W-FORMING ON FIRST STAND
- UNIQUE MODULE ROLL (ASSEMBLY ROLL) AND JUANTIE (EDGE GRADUALLY TO CENTER) FORMING TECHNOLOGY
- (6) HF SOLID STATE WELDER
- HIGH QUALITY WELDING SEAM.
- 1. SWITCHGEAR RECTIFYING CABINET
- 2. INVERTER OUTPUT CABINET
- 3. CONNECTING OPTICAL FIBER
- 4. CIRCULATION SOFT WATER COOLING SYSTEM
- 5. CENTRAL OPERATION CONSOLE
- 6. MECHANICAL ADJUSTMENT DEVICE
- (7) ANNEALING FURNACE
- (8) FLYING SAW
- FLYING SAW
- MAIN SPECIFICATION:
- MAIN SPECIFICATION:
- FLYING SAW ALL DIGITAL CONTROL SYSTEM
- (9) FACING AND BEVELING MACHINE
- (10) STRAIGHTNER MACHINE
- (11) THREADING MACHINE
- THREADING MACHINE FEATURES:
- (12) HYDRAULIC TESTING MACHINE
- GLOBAL MARKET OF STEEL PIPES
- MARKET SEGMENTATION
- BY MATERIAL
- BY APPLICATION
- BY END-USER
- KEY MARKET PLAYERS
- STEEL PIPE INDUSTRY AT A GLANCE
- STRUCTURE AND APPLICATION OF STEEL PIPES AND TUBES INDUSTRY
- EBITDA/TONNE AND LEVERAGE ACROSS PIPE SEGMENTS/PLAYERS
- STEADY IMPROVEMENT IN CREDIT PROFILES OF BOTH SEGMENTS
- DEMAND FOR STEEL PIPES TO LOG CAGR OF 7-8%
- SAW AND SEAMLESS PIPES
- PROFITABILITY TO REBOUND FOR ERW PLAYERS, STAY HEALTHY FOR
- S&S PLAYERS
- ERW PIPES
- MOVEMENT IN OPERATING MARGINS VIS-À-VIS HR COIL PRICES
- HR COIL PRICES HAVE CORRECTED SHARPLY DUE TO EXCESS GLOBAL SUPPLY, DRIVEN BY CHINA
- SAW AND SEAMLESS
- ORDER BOOK OF S&S PIPE PLAYERS SEEN SWELLING
- CAPEX CYCLE DONE, UTILISATION UPTREND TO CONTINUE THIS FISCAL
- SAW AND SEAMLESS PIPES
- UTILISATION LEVELS HEADED NORTH
- INDIAN SAW PIPE INDUSTRY
- TABLE 1 – PRODUCT SUMMARY
- INTERNATIONAL DEMAND DRIVERS
- SEAMLESS PIPES
- SAW PIPES
- LSAW PIPES
- HSAW PIPES
- WELDED (ELECTRIC RESISTANCE WELDED (ERW) AND ELECTRIC FUSION WELDED (EFW)) PIPES
- DUCTILE IRON (DI) PIPES
- GLOBAL PIPE INDUSTRY
- DEMAND SCENARIO IN THE ENERGY SEGMENT
- ENERGY DEMAND TO GROW AT A CAGR OF 1.4%
- REPLACEMENT DEMAND FROM THE US ALSO REMAINS STRONG
- DEMAND SCENARIO IN THE WATER SEGMENT
- INDIAN PIPE INDUSTRY
- INDIAN DEMAND FOR PIPES EXPECTED TO BE STRONG
- ENERGY SEGMENT
- LOW PIPELINE PENETRATION IN INDIA PROVIDES HUGE POTENTIAL
- INCREASING SHARE OF NATURAL GAS IN ENERGY DEMAND
- WITH PETROLEUM & NATURAL GAS REGULATORY BOARD IN ACTION, TRUNK PIPELINES TO RECEIVE BOOST
- SWOT – INDIAN PIPE INDUSTRY
- SALIENT FEATURES OF THE INDIAN PIPE INDUSTRY
- ORDER BOOK POSITION LOOKS ROBUST
- CAPACITY UTILIZATION RANGES BETWEEN 25–60%
- HUGE INVESTMENTS IN THE SOUTH/EAST INDIA
- STEEL PIPES MARKET OVERVIEW
- MARKET SIZE & FORECAST
- GROWTH DRIVERS & CHALLENGES
- SUPPLIERS OF RAW MATERIALS
- M.S STRIP COILS
- WELDING ELECTRODES
- PICKLING CHEMICALS
- PACKING MATERIALS
- SUPPLIERS OF PLANT AND EQUIPMENTS
- TUBE MILL
- SUBMERGED ARC WELDING EQUIPMENT
- THREE ROLLER BENDING MACHINE
- PLATE BENDING MACHINE
- PIPE CUTTING MACHINE
- PIPE STRAIGHTENING MACHINE
- HYDROTESTING EQUIPMENT
- BEND TESTING EQUIPMENT
- POWDER COATING MACHINE
- SUPPLIERS OF HIGH FREQUENCY INDUCTION WELDER
- EOT CRANE
- POWER TRANSFORMER
- ELECTRICAL PANEL
- ELECTRIC MOTOR
- COOLING TOWER
- EFFLUENT TREATMENT PLANT (ETP PLANT)
- AIR POLLUTION CONTROL EQUIPMENTS
- AIR CONDITIONING EQUIPMENTS
- AIR COMPRESSORS
- PLATFORM WEIGHING MACHINE
- MATERIAL HANDLING EQUIPMENTS
- FIRE FIGHTING EQUIPMENTS
- SHOT BLASTING MACHINE
- JIGS AND FIXTURE
- SUBMERSIBLE WATER PUMP
Appendix
- 01. PLANT ECONOMICS
- 02. LAND & BUILDING
- 03. PLANT AND MACHINERY
- 04. OTHER FIXED ASSESTS
- 05. FIXED CAPITAL
- 06. RAW MATERIAL
- 07. SALARY AND WAGES
- 08. UTILITIES AND OVERHEADS
- 09. TOTAL WORKING CAPITAL
- 10. TOTAL CAPITAL INVESTMENT
- 11. COST OF PRODUCTION
- 12. TURN OVER/ANNUM
- 13. BREAK EVEN POINT
- 14. RESOURCES FOR FINANCE
- 15. INSTALMENT PAYABLE IN 5 YEARS
- 16. DEPRECIATION CHART FOR 5 YEARS
- 17. PROFIT ANALYSIS FOR 5 YEARS
- 18. PROJECTED BALANCE SHEET FOR (5 YEARS)
Frequently Asked Questions
Spiral welded pipe is a steel pipe manufactured with a continuous seam formed in a spiral pattern along its length. The pipe is produced by forming narrower steel plates or hot-rolled coils into a cylindrical shape and joining the edges using a welding process. Spiral construction makes it possible to manufacture large-diameter pipes while using narrower input material. Such pipes can be used in pipeline, water, structural, power, and other industrial applications, subject to the required specifications, design conditions, testing, and applicable standards.
Spiral welded pipes are used in oil and gas pipelines, water and sewerage systems, power plants, structural applications, and other industrial services. Their ability to produce large diameters makes them particularly useful where substantial quantities of fluids or gases need to be transported. The suitability of a particular pipe depends on factors such as diameter, wall thickness, material grade, pressure, service medium, welding quality, testing requirements, and coating or corrosion-protection requirements.
Spiral welded pipe is manufactured through a sequence of material preparation, forming, welding, cutting, testing, finishing, and inspection operations. The report covers production methodology, geometric monitoring, end shearing, butt welding, side guide rollers, spiral forming, pipe welding, cutting, ultrasonic testing, X-ray testing and fluoroscopy, hydro testing, final inspection, weighing and measurement, coating, and final marking. Equipment selection and process parameters are determined according to the pipe specification, material, dimensions, production requirements, and applicable quality standards.
Spiral welded pipes can undergo several inspection and testing operations to verify weld integrity and product quality. The report specifically identifies ultrasonic testing, X-ray testing and fluoroscopy, and hydro testing, followed by final visual inspection, weighing, and dimensional measurement. Non-destructive testing methods help identify discontinuities without damaging the pipe, while hydro testing is used to assess pressure resistance under specified test conditions. The exact testing regime depends on the applicable product specification, service requirements, and quality-control procedures.
A spiral welded pipe plant requires forming, welding, cutting, testing, handling, and finishing equipment. The report lists equipment such as an uncoiler, leveler, shear and welder, accumulator, forming and sizing section, HF solid state welder, annealing furnace, flying saw, facing and beveling machine, straightener machine, threading machine, and hydraulic testing machine. Supporting systems can include cranes, transformers, electrical panels, cooling systems, compressors, material-handling equipment, coating equipment, and environmental-control systems, depending on the plant configuration.
Steel strip coils and other specified steel inputs form the principal raw material for spiral welded pipe manufacturing, while welding consumables and process chemicals support production and finishing operations. The report identifies M.S strip coils, welding electrodes, pickling chemicals, and packing materials among the raw-material supply categories. Actual material grades, dimensions, welding consumables, surface-treatment chemicals, and packaging requirements should be selected according to the intended pipe specification, manufacturing process, quality requirements, and customer or regulatory standards.
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