ASTM A178 Electric Resistance Welded Tube, ASTM A178 Boiler Tube, Carbon Steel ASTM A178 Tubing & SA 178 Gr D Superheater Tubes supplier in India
Amardeep Steel is a premier Manufacturer, Supplier, and Exporter of high-quality ASTM A178 Tubes and ASME SA 178 Tubes. This specification covers electric-resistance-welded (ERW) carbon steel and carbon-manganese steel tubes intended for use as boiler tubes, boiler flues, superheater flues, and safe ends. Our A178 Boiler Tubes are engineered for reliable performance, excellent weld integrity, and good formability, making them a trusted choice for various steam-generating and heat transfer applications.
Table of Contents
What Are ASTM A178 Tubes?
ASTM A178 tubes are electric resistance welded (ERW) carbon steel and carbon-manganese steel tubes are mainly used in boilers, superheaters, and boiler flues. This specification covers tubes that are made with minimum wall thickness to guarantee the reliable functioning in moderate pressure and temperature works.
ASTM A178 comes in three grades, including Grade A (low carbon steel), Grade C (medium carbon steel), and Grade D (carbon-manganese steel). Grade A is made using low carbon steel that results in high ductility, toughness, and fabrication. It is also good in weldability and machinability which has made it be used in different industries.
ASTM A178 / ASME SA 178 Tube Specifications
| Feature | Specification Details |
|---|---|
| Standard Specifications | ASTM A178 / ASME SA178 |
| Standard Dimensions | Compliant with ASTM, ASME, and API standards |
| Outer Diameter (OD) | 1/4" (6.25mm) to 8" (203mm) |
| Wall Thickness | 1.0mm to 10.0mm (Range: 0.5mm – 12mm) |
| Available Lengths | 3,000mm up to 16,000mm |
| Manufacturing Processes | Cold Drawn, Cold Rolled, or Hot Rolled |
| End Finishes | Square cut (burr-free), Plain end, or Beveled end |
| Surface Protection | Protective Plastic Caps provided at both ends |
ASTM A178 Tube Chemical Composition
| Grade | Carbon | Manganese | Phosphorus | Sulfur | Silicon |
|---|---|---|---|---|---|
| ASTM A178 Gr A | 0.06% - 0.18% | 0.27% - 0.63% | 0.035% Max | 0.035% Max | - |
| ASTM A178 Gr C | 0.35% Max | 0.80% Max | 0.035% Max | 0.035% Max | - |
| ASTM A178 Gr D | 0.27% Max | 1.00% - 1.50% | 0.30% Max | 0.015% Max | 0.10% Min |
ASTM A178 Tube Mechanical Properties
| Grade | Tensile Strength (min) | Yield Strength (min) | Elongation (in 2") | Max Hardness |
|---|---|---|---|---|
| ASTM A178 Gr A / SA178A | ksi: 47 | MPa: 325 | ksi: 26 | MPa: 180 | 35 | 77 HRB (Rockwell B) |
| ASTM A178 Gr C / SA178C | ksi: 60 | MPa: 415 | ksi: 37 | MPa: 255 | 30 | 79 HRB (Rockwell B) |
| ASTM A178 Gr D / SA178D | ksi: 70 | MPa: 485 | ksi: 40 | MPa: 275 | 30 | 77 HRB (Rockwell B) |
Types of ASME SA 178 Boiler Tubes
SA178A Pipe OD & Wall Thickness Tolerance
| Outside Diameter (OD) | OD Tolerance | Wall Thickness (S) | Wall Thickness Tolerance |
|---|---|---|---|
| OD < 50 mm | ±0.05 mm | S < 4 mm | ±12.5% |
| OD > 50 mm | ±1% | 4 mm – 20 mm | +15% / -12.5% |
| — | — | S ≥ 20 mm | ±12.5% |
Applications & Industries Served by A178 Boiler Tubes
ASTM A178 Tubes / ASME SA 178 Tubes are specifically designed and widely used for:
- Boiler Tubes: For steam generation in industrial and utility boilers, including water walls and economizer sections. A178 Boiler Tubes are a common choice.
- Boiler Flues: For conveying combustion gases.
- Superheater Flues & Tubes: For increasing steam temperature in superheater sections of boilers (Grades C and D are often preferred for higher strength at temperature).
- Safe Ends: For joining tubes of different materials or thicknesses within a boiler.
- ASTM A178 Heat Exchanger Tubes: In certain types of heat exchangers operating under conditions suitable for carbon steel.
- Air Preheaters: For preheating combustion air using flue gases.
The choice of grade (ASTM A178 Grade A Tubes, ASTM A178 Grade C Tubes, or ASTM A178 Grade D Tubes) depends on the specific design temperature, pressure, and required mechanical strength for the application.
Why Choose Amardeep Steel Center LLP for Your ASTM A178 Tubes?
Amardeep Steel Center LLP is your trusted Manufacturer, Supplier, and Exporter of ASTM A178 Tubes in India and for the global market:
- Grade Availability: We offer a comprehensive range including ASTM A178 Grade A Tubes, Grade C Tubes, and Grade D Tubes.
- Quality Manufacturing: Our ASTM A178 Electric Resistance Welded Tubes are produced with advanced ERW technology and precise heat treatment.
- Stringent Quality Control: Adherence to ISO 9001 and rigorous testing ensures every ASME SA 178 Tube meets or exceeds specifications.
- Competitive Pricing: We provide an excellent Price for high-quality SA178 Carbon Steel Tubes, offering great value.
- Global Export Capabilities: Efficient logistics and experience in exporting A178 ERW Tubes worldwide.
- Customization & Technical Support: We offer cut-to-length services and expert technical assistance.
Related Products
Amardeep Steel Center LLP offers a comprehensive range of carbon steel pipes and tubes for various industrial applications. In addition to our ASTM A178 Tubes, you may also be interested in the following products:
Explore our full inventory of Carbon Steel Pipes & Tubes for all your project needs.
Get Your ASTM A178 Tubes / ASME SA 178 Tubes Price & Consultation
For the latest Price, detailed technical specifications, or to discuss your project requirements for ASTM A178 Tubes or ASME SA 178 Tubes, contact the boiler tube experts at Amardeep Steel Centre LLP today. We are committed to providing high-quality A178 Boiler Tubes, including ASTM A178 Grade A Tubes, ASTM A178 Grade C Tubes, and ASTM A178 Grade D Tubes, along with tailored solutions for your steam generation and heat transfer applications.
