ASTM A213 T5 Embedded G Fin Tube For Heat Exchanger And Air Cooler
1. What is ASTM A213 T5 Embedded G Fin Tube?
ASTM A213 T5 Embedded G Fin Tube is a high-integrity heat transfer solution for extreme hydrogen and sulfur environments. It features a seamless chromium-molybdenum alloy steel base tube (ASTM A213 T5, UNS K41545) with spiral G-type fins mechanically embedded into precision-grooved surfaces. This interlocking design achieves 360° metallurgical contact, eliminating thermal resistance while providing unmatched resistance to hydrogen embrittlement and sulfidation up to 593°C (1,100°F). Ideal for hydrocrackers, reformers, and syngas coolers.
2. Chemical & Mechanical Properties
Dimensional Specifications:
| Bare Tube Diameter:16-63mm |
| Fin Height::<17 mm | Fin Thickness: ~0.4 mm | Fin Pitch: 2.1-5mm | Tube Ends: Plain Ends / Beveled Ends |
| No Fin Area (Both Ends): As Customer’s Request and Drawing |
Chemical Composition (%)
| Element | C | Mn | P | S | Si | Cr | Mo | Others |
| Range | ≤0.15 | 0.30~0.60 | ≤0.025 | ≤0.025 | ≤0.50 | 4.00~6.00 | 0.45~0.65 | Balance (Fe) |
Mechanical Properties
| Tensile Strength: Rm (MPa) | Yield Strength: Rp 0.2 (MPa) | Elongation: A (%) | Hardness(HB) | Max Service Temp. |
| ≥415 | ≥205 | ≥30 | ≤ 179 | 593°C (1,100°F) |
3. Key Applications & Competitive Advantages
· Hydroprocessing Units: Heaters in hydrocrackers/hydrodesulfurization reactors.
· Syngas Coolers: Transfer line exchangers for coal-to-chemical plants.
· Refinery Reformers: Convection sections in continuous catalytic reformers (CCR).
· Hydrogen Plants: Waste heat boilers for steam methane reformers.
· Coker Units: Vapor recovery exchangers.
4.Why Choose ASTM A213 T5 Embedded G Fin Tube:
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:
· Zero Hydrogen Attack: Certified per NACE MR0103 for H₂S service.
· 100% Fin Retention: Embedded fins withstand 50+ thermal cycles (ASME Sec. VIII Div.1).
· Cost Saving: 25% lower lifecycle cost vs. welded alloy fins.
· Customization: No-fin zones, beveled ends, and test coupons per client specs.
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