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ASTM A178 Welded Boiler Tube

ASTM A178 Welded Boiler Tube

1)Materials GradeA ,Grade C,GradeD Bolier steel tube.
2)Size OD 1/2in-5in(12.7-127mm)
3)Wall thickness 0.035in-0.360in(0.9-9.1mm)
4)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...

ASTM A178 welded bolier tube

1)Materials

GradeA,GradeC,GradeD Bolier steel tube.

2)Size

OD 1/2in-5in(12.7-127mm)

3)Wall thickness

0.035in-0.360in(0.9-9.1mm)

4)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.

5)Chemical Composition:


Element %Grade AGrade CGrade D
Low carbon steelMedium Carbon SteelManganess Steel
C0.06-0.180.35 Max0.27 Max
Mn0.27-0.630.80 Max1.00-1.50
P0.0350.0350.030
S0.0350.0350.015
Si......0.10 Min.

6) Mechanical Properties


Grade AGrade CGrade D
Tensile Strength Loading Ksi (Mpa)≥47 (325)60 (415)70 (485)
Yield Strength Loading Ksi (Mpa)≥26 (180)37 (255)40 (275)
Elongation (50mm) %≥35≥30≥30


7)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.

8)Manufacturing Process: ERW

9)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.

10) Mechanical Tests Required:

Flattenting Test/Flaring test/Flange test/Crush test/Tension test/Reverse Flattening test/Hydrostatic or Nondestructive Electric Test

11) Usage

Used in boiler, superheater, heat-exchanger and pressure equipment in Petrochemical factory, Refinery factory, sugar mill, power plant, power plant, shipbuilding.

12) Loading

1. Bundle package/In budle with plastic bag outside/ In wooden case

2. Marking as per customer's request 

3. Paint on the pipe as per customer request 

4. Pipe caps as customer request5. As per your requirement

WORLD IRON & STEEL is one of the leading China ASTM A178 Welded Boiler Tube manufacturers and suppliers, if you want to buy or import best high-quality ASTM A178 boiler tube,from professional company , please feel free to contact us with :info@worldironsteel.com

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