SA178 Tubes – MANUFACTURER AND SUPPLIER
Midland Alloys Inc. is a trusted Indian manufacturer and global supplier of SA178 Tubes, serving as one of the premier suppliers and exporters in India. These tubes consist primarily of carbon steel, designed specifically to meet the stringent requirements of boiler applications. Carbon, manganese, phosphorus, sulfur and silicon are usually meticulously changed in SA178 tubes chemical composition to provide the best mechanical qualities. These tubes offer outstanding ductility, and toughness, with tensile strengths of around 415 to 550 MPa, elongation of at least 30%, and a significant reduction in area. The chemical composition and mechanical strength enable sa 718 tubes to resist pressures and temperatures that prevail in industrial boilers. Midland Alloys Inc. follows rigorous quality checks to provide every tube in accordance, with ASTM/ASME specifications.
Benefits of ASME SA178 Boiler Tubes
The use of ASME SA178 Tubes provides industries with dependable and long-lasting boiler tubing that blends strength and flexibility for demanding pressure and temperature conditions. These tubes preserve maintenance and downtime by resisting oxidation, scaling and extreme temperatures. Power plants and industrial boilers operate safely and effectively due to their superior weldability and rigorous adherence to standards.
- High strength and durability resist mechanical wear and tear
- Excellent corrosion resistance prolongs service life
- Cost-effective solution compared to alternative materials
- Easy installation reduces labour and downtime
- Low maintenance demands lower operational costs
- Consistent quality ensures reliable performance under stress
- Suitable for high-temperature and high-pressure environments
- Availability in various sizes and schedules for versatile applications
ASME SA178 Boiler Tubes Specification
1/2" (15 NB) to 48" (1200NB)
ASTM A178/ A178M
ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Threaded / Screwed / Forged / Plate
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Forging, Rolling, Casting
FNPT, NPT, BSPT, MNPT, BSPP
Contact us today to discuss how ASTM A178 Tubes can benefit your application. Whether you need guidance in selecting the right pipes or have specific requirements, our team of experts is here to help you find the optimal solution.
Technical Details & Delivery Condition
| Element | Carbon | Manganese | Phosphorus | Sulfur |
| Grade A | 0.06-0.18 | 0.27-0.63 | 0.035 | 0.04 |
| Grade B | 0.35 max | 0.80 max | 0.035 | 0.035 |
| Grade C | 0.27 max | 1.00-1.50 | 0.030 | 0.035 |
| SA178 Grade A | SA178 Grade C | SA178 Grade D | |
|---|---|---|---|
| Tensile strength, min, ksi [MPa] | 47[325] | 60[415] | 70[485] |
| Yield strength, min, ksi [MPa] | 26[180] | 37[255] | 40[275] |
| Elongation in 2 in. or 50mm, min, % | 35 | 30 | 30 |
| For longitudinal strip tests a deduction for | 1.50A | 1.50A | 1.50A |
| Each1⁄32-in[0.8mm] decrease in wall thickness below 5⁄16in. [8mm] | |||
| From the basic minimum elongation of the following percentage points shall be made |
Difference Between SA178 Tubes and Cladded Tube Sheets
SA178 Tubes are carbon steel tubes manufactured to withstand boiler pressure and temperature requirements, primarily serving as heat exchanger and boiler components. On the other hand, cladded tube sheets consist of a layer of corrosion resistant alloy consist of carbon steel base. Cladded tube sheets prioritize corrosion resistance by the mixing various materials, whereas SA178 tubes prioritize mechanical strength and thermal resistance. Compared to SA178 tubes constructed from a single material, the cladding technique increases surface durability but also adds complexity, and expense. Although both parts are essential to boiler, and heat exchanger assemblies, it serve distinct functional purposes in these systems.
Plate
Shear
Press
Inspection
Lathe
Drilling
Cleaning
Flange
Inspection
Analytic
Marking
Packing & Shipping
Applications of SA178 Tubes
SA178 Tubes find extensive use across various industrial sectors, notably in heat exchangers, superheaters, and condensers. These sa718 tubes are appropriate for boilers in power generating, petrochemical plants, and refinery operations due to its capacity to withstand high temperatures and pressures. Additionally, these tubes function effectively in chemical processing units where mechanical strain and heat stress occur. In the power and chemical industries, SA178 tubes play a crucial role in manufacturing processes that involve high-temperature fluids, ensuring both efficiency and safety standards are maintained. Their adaptability and mechanical reliability make them an indispensable choice for critical high-temperature and high-pressure applications worldwide.
Why Choose Midland Alloys Inc. for ASTM A178 Grade A Boiler Tubes
Midland Alloys Inc. stands as a leading Indian manufacturer and exporter of high-quality ASTM A178 Grade A Boiler Tubes. As an ISO-certified company, we commit to precision manufacturing aligned with ASTM A178 standards. Our customization options include cut-to-length sizing, different end finishes, special schedules, and customized surface treatments to cater to specific customer needs. Catering to customers all over the world in the Gulf, Europe, Africa, and Southeast Asia, we maintain strict quality assurance through in-house inspection, extensive mill certifications, and third-party audits. Our supply chain offers timely delivery and project-related assistance, supporting small and bulk export orders with ease. Each pipe is marked accordingly to the ASTM/ASME standards and provided with Mill Test Certificates (MTC), which ensure chemical, and mechanical compliance. Approved under International Quality Management Systems, we are certified with ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, and PED 2014/68/EU. At Midland Alloys Inc., we build long-term partnerships by delivering consistent quality and client satisfaction backed by robust quality assurance protocols.
FAQs
SA178 tubes are mainly available in Grades A and B. Due to its superior mechanical qualities and chemical composition, Grade A is the most widely used for boiler applications.
SA178 tubes are usually manufactured as seamless tubes to ensure maximum strength and resistance to high pressure conditions.
SA178 tubes are resistance to corrosion, they are mostly made of carbon steel and may need cladding, or protective coatings in extremely corrosive conditions.
Size, number, material quality and other customizations, like surface treatments and unique scheduling all affect the cost.
SA178 tubes are available in a range of schedules and dimensions, their outer diameters normally range from 10 mm to more than 100 mm and their thicknesses meet ASME requirements.
