1. What is ASTM A312 TP304 Studded Fin Tube?
ASTM A312 TP304 Studded Fin Tube is a high-efficiency heat transfer solution engineered for fouling-prone and corrosive environments. It consists of a seamless austenitic stainless steel base tube (ASTM A312 TP304) with carbon steel stud-type fins resistance-welded perpendicularly to the surface. This robust design maximizes heat transfer surface area while preventing ash buildup, delivering superior corrosion resistance and 50% higher thermal efficiency than bare tubes in waste incinerators, boilers, and high-dust flue gas applications up to 760°C (1,400°F).
1. Chemical & Mechanical Properties
Dimensional Specifications:
| Bare Tube Diameter:25-219mm |
| Fin Height:: 5-35mm | Fin Thickness: Φ5-20 mm | Fin Pitch: 8-30mm | Tube Ends: Plain Ends / Beveled Ends |
| No Fin Area (Both Ends): As Customer’s Request and Drawing |
Chemical Composition (%):
| Element | C | Si | Mn | P | S | Cr | Ni | Others |
| Range | ≤0.08 | ≤0.75 | ≤2.00 | ≤0.045 | ≤0.030 | 18.0~20.0 | 8.0~11.0 | Balance (Fe) |
Mechanical Properties:
| Tensile Strength: Rm (MPa) | Yield Strength: Rp 0.2 (MPa) | Elongation: A (%) | Hardness(HB) | Stud Bond Strength(MPa) |
| ≥515 | ≥205 | ≥35 | ≤192 | > 120 |
3. Key Applications & Competitive Advantages
· Waste Incinerators: Boiler tubes for municipal solid waste (MSW) plants.
· Biomass Boilers: Superheaters handling high-alkali flue gas.
· Cement Plants: Preheater exhaust gas economizers.
· Coal-Fired Power: Air preheaters with >30g/Nm³ dust loading.
· Chemical Processing: Sulfuric acid concentration heaters.
4. Why Choose ASME A312 TP304 Studded Fin Type:
A:Company Competitiveness:
Yuhong Holding Group has more than 35 years experience for steel pipe and tube , fin tube , main application for Petrochemical , Oil refinary, Furnace, heating, boiler, heat exchanger, air cooler,.., till now YUHONG brand products already exported more than 85 countries, which like UK, ITALY, SPAIN , USA, MEXICO , COLOMBIA , BRAZIL, SAUDI ARANBIA , OMAN, QATAR, U.A.E, KOREA, ...., YUHONG brand already won good reputation in the market.
B:Product Competitiveness:
· Anti-Fouling Design: 60% lower ash buildup vs. helical fins (EPRI Field Data).
· Corrosion Resistance: Withstands chloride/alkali attacks per ASTM G48.
· Cost Efficiency: Carbon steel studs reduce cost by 35% vs. stainless steel.
· Rapid Delivery: 80+ standard sizes in stock (OD 25.4–152.4mm).
Product Tags:
|
|
ASTM A312 TP304 Stainless Steel Studded Fin Tube For HVAC Systems Images
|
