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| Categories | 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 |
| Company Info. |
| Yuhong Group Co.,Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
ASTM A178 / ASME SA178 Gr.A Carbon Steel ERW Tube Heat Exchanger Tube
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.
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