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ASME SA178 Grade A Carbon Steel ERW Tube , Boiler and Heat Exchanger Tube

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ASME SA178 Grade A Carbon Steel ERW Tube , Boiler and Heat Exchanger Tube

Brand Name : YUHONG

Model Number : ASME SA178 Grade A Carbon Steel ERW Tube

Certification : ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008.

Place of Origin : CHINA

MOQ : 1000KGS

Payment Terms : L/C, T/T

Delivery Time : 7days

Packaging Details : Ply-wooden Case /Bundle with plastic Cap

Product Name : Heat Exchanger Tube

Specification : ASTM A178, ASME SA178

Material : Grade A, C, D

O.D. : 1/2" to 5" (12.7 to 127 mm)

Min. Thickness : 0.035 to 0.360 in. (0.9 to 9.1 mm)

Length : Single Random, Double Random & Cut Length

End : Plain Ends / Beveled Ends

Process : Cold Drawn, Hot Finished

Application : Boiler, Heat Exchanger, Superheat

High Light : ASTM A178 Grade A Heat Exchanger Tube , Carbon Steel ERW Tube

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ASTM A178 / ASME SA178 Gr.A Carbon Steel ERW Tube Heat Exchanger Tube

ASTM A178 /ASME SA178 this specification covers Grade A, C and D material with minimum-wall-thickness. The steel for Grade D shall be killed. carbon steel tubes under this specification shall be made by electric-resistance-welding / ERW process, which used in boiler, superheater, heat exchanger, etc.

Comparison with Other Standards

  • ASTM A192: For seamless boiler tubes, used in higher-pressure applications.

  • ASTM A210: Covers seamless medium-carbon steel tubes, offering higher strength than A178.

  • Grade A vs. Grade D: Grade D has higher carbon content (0.15–0.25%) for increased strength.

ASME SA178 Grade A Carbon Steel ERW Tube Chemical Composition

Element %. ASTM A178/ ASME SA-178
Grade A Grade C Grade D
C 0.06~0.18 ≤0.35 ≤0.27
Mn 0.27~0.63 ≤0.80 1.00~1.50
P ≤0.035 ≤0.035 ≤0.030
S ≤0.035 ≤0.035 ≤0.015
Si - - ≥0.10

ASME SA178 Grade A Carbon Steel ERW Tube Mechanical Properties

ASTM A178 Grade C Grade D
Tensile strength ksi [MPa] 60 [415] 70 [485]
Yield strength ksi [MPa] 37 [255] 40 [275]

Eelongation in 2" min. %

30 30
For longitudinal strip tests a deduction for each 1 ⁄ 32 in. [0.8 mm] decrease in 1.50A 1.50A wall thickness below 5 ⁄ 16 in. [8 mm] from the basic minimum elongation of the following percentage points shall be made.

Manufacturing Process

  • ERW (Electric Resistance Welding): Sheets of steel are formed into a cylindrical shape, and edges are fused using electrical resistance. This method ensures precise dimensions and cost-effectiveness.

  • Post-Weld Heat Treatment: Often applied to relieve residual stresses and enhance mechanical properties.

Applications

  • Boilers and Superheaters: Designed for high-pressure, high-temperature environments (e.g., power plants, industrial boilers).

  • Heat Exchangers: Efficient thermal performance in HVAC and process industries.

  • Pressure Vessels: Suitable for moderate-stress applications due to ERW integrity.

ASME SA178 Grade A Carbon Steel ERW Tube , Boiler and Heat Exchanger Tube


Product Tags:

ASME SA178 Grade A ERW Tube

      

Boiler Carbon Steel ERW Tube

      

Heat Exchanger Carbon Steel ERW Tube

      
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