Grade: Grade A Grade C Grade D
Size: OD 1/2in-5in(12.7-127mm)
Wall thickness:0.035in-0.360in(0.9-9.1mm)
Different name
Condenser steel tube,heat-exchanger tube,low carbon steel pipe,Resistance welded steel tube ,Bolier flues,Spoerheater flues and safe ends,ERW carbon steel pipes.
Chemical Composition:
Element % | Grade D |
Manganess Steel | |
C | 0.27 Max |
Mn | 1.00-1.50 |
P | 0.030 |
S | 0.015 |
Si | 0.10 Min. |
Mechanical Property:
Grade C & Grade D tubes shall conform to the requirements -tensile properties prescribed below:
TensileRequirements | |
Data | GradeD |
Tensilestrength,min,ksi[MPa] Yieldstrength,min,ksi[MPa] Elongationin2in.or50mm,min,% For longitudinal strip tests a deduction for Each1⁄32-in[0.8mm]decreaseinwallthicknessbelow5⁄16in.[8mm] | 70[485] 40[275] 30 1.50A |
From the basic minimum elongation of the following percentage points shall be made
Outside diameter and Wall ThicknessTolerance:
Outside Diameter tol | Wall thickness tol | ||
OD < 50 | ±0.05mm | S < 4mm | ±12.5% |
OD > 50 | ±1% | 4--20mm | +15/-12.5% |
S≧20mm | ±12.5% |
Referenced Documents:
ASTM standards:
- A450/A450M Specification for General Requirements for Carbon,Ferritic Alloy,and Austenitic Alloy steel tubes.
- E213 Practice for Ultrasonic Examination of Metal pipe and tubing.
- E273 Practice for Ultrasonic Examination of Longitudinal Welded Pipe and Tubing.
Manufacturing Process: ERW
Heat treatment:
After welding,all tubes shall be heat treated at a temperature of 1650°F(900℃) or higher and followed by cooling in air or in the cooling chamber of a controlled-atmosphere furnace,Cold-drawn tubes shall be heat treated after the final cold-draw pass at a temperature of 1200°F(650℃)or higher.
Surface Condition:
Finished tubes shall be free of scale,A slight amount of oxidation will not be considered as scale.
Mechanical Tests Required:
Flattenting Test/Flaring test/Flange test/Crush test/Tension test/Reverse Flattening test/Hydrostatic or Nondestructive Electric Test
Usage
Used in boiler, superheater, heat-exchanger and pressure equipment in Petrochemical factory, Refinery factory, sugar mill, power plant, power plant, shipbuilding.
SA178 Heat Exchanger and Condenser Tubes in various Application Industries
- Air Preheater Unit
- Steam generating Boiler
- Power Generation
- Economiser
- Heat Exchangers
- Electric Power Plants
- Fossil Fuel Plants
- Water Supply Systems
- Waste Heat Plants
- Cogeneration Facilities
Loading
Pipe caps as customer request
As per your requirement
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