| Fin Thickness | Minimum 0.8mm, Maximum 3 Mm |
|---|---|
| Fin Height | Minimum 0.25″(6.35 Mm), 1.5″(38 Mm) |
| Fin Density : | Minimum 46 Fins Per Meter, Maximum 287 Fins Per Meter |
| Material | Carbon Steel, Stainless Steel |
| Tubes Diameter | 30mm Od Minimum, 220mm Od Maximum |
321 Stainless Steel Fin Tube
Timex Metals is a reputed 321 Stainless Steel Fin Tube Finish Manufacturer, with top-quality fin tubes that are used to enhance high heat transfer and longevity. These are high-quality fin tubes manufactured using high-grade 321 stainless steel, which is highly resistant to oxidation, corrosion, and high temperatures, hence suitable for high requirements in a demanding industrial service like boilers, heat exchangers, and condensers. The tubes are precision-engineered and thus meet worldwide standards, hence long-lasting performance and reliability in the critical operations.
| Material | Grade | Fin Type | Tube OD (mm) | Wall Thickness (mm) | Fin Height (mm) | Fin Thickness (mm) | Fin Density (Fins/m) | Working Temp (°C) | Approx. Weight (kg/m) |
|---|---|---|---|---|---|---|---|---|---|
| Stainless Steel | 321 | Helical | 25.4 | 2.11 | 10 | 0.9 | 380 | up to 600 | 3.10 |
| Stainless Steel | 321 | G-Type | 31.75 | 2.77 | 12 | 1.0 | 340 | up to 600 | 4.35 |
| Stainless Steel | 321 | Welded | 38.10 | 3.05 | 14 | 1.1 | 300 | up to 650 | 5.90 |
| Stainless Steel | 321 | Embedded | 44.45 | 3.40 | 15 | 1.2 | 280 | up to 650 | 7.20 |
The stabilised alloy composition allows these fin tubes to operate reliably in high-temperature environments where thermal cycling and oxidation resistance are critical, while fin density and height directly influence heat transfer efficiency and pressure drop. The selection of tube diameter and wall thickness is typically based on operating pressure and support span requirements, and during system evaluation, this configuration is often reviewed alongside Carbon Steel A192 Fin Tube to balance temperature capability with economic considerations. On a B2B marketplace, clearly defined material, grade, and weight-per-meter data help engineers and procurement teams compare configurations accurately and ensure compatibility with structural loads and service conditions.
Type of Sub-products

Extruded Finned Tubes Extruded Finned Tubes
Fins are extruded onto the 321 SS tube for a seamless bond, improving heat dissipation in industrial applications.

Embedded Finned Tubes Embedded Finned Tubes
Fins are embedded into the tube surface, offering better mechanical strength and heat transfer capabilities, particularly for high temperature environments.
