Stainless Steel Welded Pipes
Citizen Metals is one of the major manufacturers of Welded Stainless Steel Pipes for application in Power generation – Nuclear, Thermal and Solar, Refinery and Petrochemical, Oil and Gas, Chemical and Fertilizer and Process Industries etc.
Citizen Metals manufactures Austenitic, Super Austenitic, Duplex and Super Duplex welded stainless steel pipes both from coil and plate. The weld procedures used are TIG, Combination of Plasma and TIG , TIG with filler , TIG and SAW , SAW depending up on the wall thickness of input raw material for Pipe manufacturing.
The welding process is controlled by laser seam tracking equipment to optimize the quality of weld seam. Stainless Steel Welded Pipes above 40″ NB & up to 72″ NB can be manufactured with a combination of longitudinal / circumferential joints.
Salient Features:
- Radiography/Radioscopy to ensure Welding quality
- Solution Annealing Heat treatment facility upto 100″ NPS
- Hydro Test
- Ultrasonic and Eddy Current Test can be done as per Client requirement
- In-house testing facility to meet International Standard
- Various Sizes and Grades of Austenitic , Super Austenitic ,Duplex and Super Duplex Stainless Steel
- Ability to manufacture pipes as per API 5LC with Coating facility
Manufacturing Range:
Welded Pipes :SIZE / RANGE | THICKNESS | SPECIFICATION | |||
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1/8″ NB to 1″ NB | SCH.5S, 10S, 40S | ASTM A-312, A-554, A-778, A-790 API 5LC |
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Above 1″ NB to 2″ NB | |||||
Above 2″ NB to 18″ NB | |||||
18″ NB to 36″ NB | |||||
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* Sizes and Specifications other than above can be manufactured on request |
Large Diameter Electric Fusion Welded (EFW) Stainless Steel Pipes :
PRODUCTS | SIZE / RANGE | THICKNESS | SPECIFICATION | |||
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Longitudinal Pipes | 8″ NB to 40″ NB | 2.77 MM to 50.00 MM | ASTM A-358, A-409, A-778, A-928, API 5LC |
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Longitudinal with Circumferential Seam Welded Pipes | 20″ NB to 72″ NB | 5.54 MM to 20.00 MM | ASTM A-358, A-409, A-778 |
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* Sizes and Specifications other than above can be manufactured on request |
Stainless Steel Welded Tubes
Citizen Metals is having dedicated facility for manufacturing Stainless Steel Welded Tubes using TIG and LASER Welding.
The manufacturing facility is equipped with the state of art Coil Slitting Line, which plays an important role for manufacturing welded tubes. Citizen Metals is having the latest generation Tube Mills using On-Line Bright Annealing, On-Line Eddy Current Testing, Two Axis Dimension check including ovality resulting into closer dimensional control.
Citizen Metals is also having facility of High Speed Draw Benches for manufacturing Welded and Cold Drawn Tubes in Austenitic and Duplex Stainless Steels in longer length, Off-Line Bright Annealing , Off-Line Eddy Current Testing,Off-Line Ultrasonic Testing etc.
Common Features :
- Good Surface Finish
- Good Corrosion Resistance
- In-house “U” bending facility and “U” bend stress relieving
- Ability to produce tubes with stringent NDT requirements of the Client
- Ability to handle various Grades of Stainless Steel
- Stabilization Heat Treatment facility for Stabilized Stainless Steel Grades
Salient Features :
Power PlantsStainless Steel Welded Condenser Tubes
- Capabilities to manufacture tubes having wall thickness from 0.40 mm to 2.00 mm.
- Straight Length upto 25 meters
Stainless Steel Seamless LP and HP Heater Tubes
- Capabilities to supply tubes with Very Low Residual Stress Values leading to longer service life
- Capabilities to manufacture tubes having wall thickness from 0.40 mm to 2.00 mm
- Closer dimensional tolerances
- Dedicated facility for manufacturing Tubes in U bend Solution Annealed condition upto developed length of 36 meters
- Capabilities to supply Ferritic Stainless Steel tubes for Nuclear Power Plant
Stainless Steel Welded HP Heater Tubes
- Capabilities to supply tubes with Very Low Residual Stress Values leading to longer service life
- Fully recrystallized microstructure in weld, improving corrosion resistance of Heater Tubes
- Closer dimensional tolerances due to Cold drawn tube
- Dedicated facility for manufacturing Tubes in U bend Solution Annealed condition upto developed length of 36 meters
- Capabilities to supply Ferritic Stainless Steel tubes for Nuclear Power Plant
- Capability to supply tubes with Special Chemistry
General Industries
- Manufacturing capabilities to supply Ferritic Stainless Steel tubes for Desalination Plant
- Manufacturing capabilities to supply Duplex Welded and Cold Drawn Tubes for Oil and Gas Sector
- Manufacturing capabilities to supply Lean Duplex tubes for Process Industries
Manufacturing Range
SIZE / RANGE | THICKNESS | SPECIFICATION | |||
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10.00 MM to 76.00 MM OD | 0.50 MM to 4.00 MM | ASTM A-249, A-268, A-269, A-270, A-554, A-688, A-789, A-803 EN-10217-7 U-Tubes as per Customer’s Drawing. |
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* Sizes and Specifications other than above can be manufactured on request |