ASME SA106 Gr.B Carbon Steel HFW Solid Finnd Tube For Air Preheaters And Boiler
1. What is ASTM A106 Gr.B Carbon Steel HFW Fin Tube?
ASME SA106 Gr.B Carbon Steel HFW (High-Frequency Welded) Fin Tube is a high-efficiency heat transfer component designed for demanding thermal applications. It consists of a seamless carbon steel base tube (ASME SA106 Gr.B) with externally welded helical fins using advanced HFW technology. This robust combination delivers exceptional thermal conductivity, mechanical strength, and corrosion resistance in high-temperature/pressure environments, making it ideal for heat exchangers, boilers, and economizers. Its cost-effectiveness and durability outperform standard tubes in energy-intensive systems.
2. Chemical & Mechanical Properties
Chemical Composition (ASME SA106 Gr.B Base Material)
|
Element |
Content (%) |
|
Carbon (C) |
≤ 0.30 |
|
Manganese (Mn) |
0.29–1.06 |
|
Phosphorus (P) |
≤ 0.035 |
|
Sulfur (S) |
≤ 0.035 |
|
Silicon (Si) |
≥ 0.10 |
|
Copper (Cu) |
≤ 0.40 |
|
Chromium (Cr) |
≤ 0.40 |
|
Molybdenum (Mo) |
≤ 0.15 |
Mechanical Properties (Base Tube)
|
Property |
Value |
|
Tensile Strength |
≥ 415 MPa (60,200 psi) |
|
Yield Strength |
≥ 240 MPa (34,800 psi) |
|
Elongation |
≥ 20% (in 50mm) |
|
Hardness |
≤ 163 HB (Brinell) |
|
Max Operating Temp. |
425°C (797°F) |
3. Key Applications
·Heat Recovery Systems: Maximizes energy efficiency in economizers and air preheaters.
·Power Generation: Critical for boiler superheaters and condensers in coal/gas plants.
·Petrochemical Processing: Resists scaling in heaters/coolers for refineries.
·HVAC & Industrial Drying: High heat flux in compact heat exchangers.
·Waste Incineration: Reliable performance in corrosive flue gas environments.
4.Why Choose Our Product?
· Long Service Life: Withstands thermal cycling & stress corrosion.
· Customizable: Fins per inch (FPI), height, and thickness optimized per duty.
· Cost-Saving: 3–5x enhanced heat transfer reduces equipment size and OPEX.
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