ASTM 178, Grade D Heat Exchanger Tube


ASTM 178, Grade D Heat Exchanger Tube


ASTM 178, Grade D Heat Exchanger Tube with plain end


ASTM A178 Grade D heat exchanger tube qualified products stacked

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Standards: ASTM A178 (ASME SA178)

ASTM A178/A 178M Standard Specification for Electric-Resistance-Welded Carbon Steel and Carbon-Manganese Steel Boiler and Superheater Tubes

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.

Loading

4. Pipe caps as customer request

5. As per your requirement




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Sunny Steel produce an extensive selection of welded steel pipe including ERW, HFI, EFW, LSAW, DSAW and UOE type carbon steel pipe along with their respective flanges and fittings.

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HFI
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