Yuhong Group Co.,Ltd
| Payment Terms | L/C, T/T |
| Delivery Time | 7days |
| Packaging Details | Ply-wooden Case /Bundle with plastic Cap |
| Product Name | Boiler 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 Welded Carbon Steel Tube , Welded Steel Boiler Tube |
| Brand Name | YUHONG |
| Model Number | ASME SA178 Grade A ERW Carbon Steel Tube |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008. |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Delivery Time | 7days |
| Packaging Details | Ply-wooden Case /Bundle with plastic Cap | Product Name | Boiler 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 Welded Carbon Steel Tube , Welded Steel Boiler Tube | Brand Name | YUHONG |
| Model Number | ASME SA178 Grade A ERW Carbon Steel Tube | Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008. |
| Place of Origin | CHINA | ||
| High Light | ASME SA178 Grade A ERW Tube ，Boiler Carbon Steel ERW Tube ，Heat Exchanger Carbon Steel ERW Tube | ||
ASTM A178 / ASME SA178 Gr.A Carbon Steel ERW Tube Boiler Tube
ASTM A178/ASME SA178 is a standard specification for electric-resistance-welded (ERW) carbon steel tubes used primarily in boiler superheaters, heat exchangers, and condensers. These tubes are designed for moderate temperature and pressure service. The key characteristic of SA178 tubes is their welded construction, making them a cost-effective alternative to seamless tubes for many applications where the highest pressures and temperatures are not a concern.
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 |
*Grade A is a low-carbon steel with good weldability and formability. Grade C has a higher carbon and silicon content, providing higher strength at elevated temperatures, making it more suitable for superheater applications.
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
SA178 tubes are chosen for specific, well-defined roles in thermal systems:
Boiler Superheaters (especially Grade C): For saturated or low-temperature superheat sections.
Water-Tube Boilers: For generating and containing steam at moderate pressures.
Heat Exchangers & Condensers: For transferring heat between fluids (e.g., in power plants, refineries, HVAC systems).
General Service Pressure Tubes: Where the operating conditions fall within the limits of ERW carbon steel.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9... YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
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