Brand Name: | YUHONG |
MOQ: | 200-500KGS |
Price: | Negotiable |
Packaging Details: | Ply-wooden Cases with Steel Frames(both ends of pipes have plastic caps) |
Payment Terms: | L/C,T/T,AT SIGHT |
ASTM A213 T9 Studded Fin Tube is a high-temperature heat transfer component engineered for extreme thermal and corrosive service. It consists of a seamless chromium-molybdenum alloy steel base tube (ASTM A213 T9) with stud-type fins resistance-welded perpendicularly to the surface. This robust construction maximizes heat flux in high-ash/flue gas environments (up to 600°C/1,112°F), offering superior oxidation resistance and 3x longer life than carbon steel tubes in waste heat boilers, reformers, and fired heaters.
Element |
Content (%) |
Critical Function |
Chromium (Cr) |
8.0–10.0 |
Oxidation resistance |
Molybdenum (Mo) |
0.90–1.10 |
High-temp strength |
Carbon (C) |
0.15 max |
Weldability |
Manganese (Mn) |
0.30–0.60 |
Toughness |
Silicon (Si) |
0.25–1.00 |
Deoxidation |
Phosphorus (P) |
≤ 0.025 |
Purity |
Sulfur (S) |
≤ 0.025 |
Ductility |
Mechanical Properties (System)
Property |
Base Tube (T9) |
Tensile Strength |
≥ 415 MPa |
Yield Strength |
≥ 205 MPa |
Max Service Temp. |
600°C (1,112°F) |
Hardness |
≤ 179 HB |
Thermal Conductivity |
36.7 W/m·K |
· Refinery Heaters: Convection sections in CDU/VDU heaters (resists sulfidation).
· Chemical Reformers: Syngas coolers in methanol/ammonia plants.
· Waste Heat Recovery: Boilers in cement/steel mills (handles >80g/Nm³ fly ash).
· Power Generation: SCR system heat exchangers for coal-fired plants.
· Petrochemical: Cracking furnace convection tubes.
4. Why This Solution Dominates:
· 10-Year Lifespan: Withstands 650°C cyclic operation per NACE RP0492.
· Ash Erosion Resistance: Stud spacing blocks ash buildup – 40% lower fouling vs. helical fins.
· Cost Saving: 35% lower OPEX than refractory-lined carbon steel tubes.
· Customization: Stud height (15–40mm), diameter (3–8mm), and pitch optimization.
Brand Name: | YUHONG |
MOQ: | 200-500KGS |
Price: | Negotiable |
Packaging Details: | Ply-wooden Cases with Steel Frames(both ends of pipes have plastic caps) |
Payment Terms: | L/C,T/T,AT SIGHT |
ASTM A213 T9 Studded Fin Tube is a high-temperature heat transfer component engineered for extreme thermal and corrosive service. It consists of a seamless chromium-molybdenum alloy steel base tube (ASTM A213 T9) with stud-type fins resistance-welded perpendicularly to the surface. This robust construction maximizes heat flux in high-ash/flue gas environments (up to 600°C/1,112°F), offering superior oxidation resistance and 3x longer life than carbon steel tubes in waste heat boilers, reformers, and fired heaters.
Element |
Content (%) |
Critical Function |
Chromium (Cr) |
8.0–10.0 |
Oxidation resistance |
Molybdenum (Mo) |
0.90–1.10 |
High-temp strength |
Carbon (C) |
0.15 max |
Weldability |
Manganese (Mn) |
0.30–0.60 |
Toughness |
Silicon (Si) |
0.25–1.00 |
Deoxidation |
Phosphorus (P) |
≤ 0.025 |
Purity |
Sulfur (S) |
≤ 0.025 |
Ductility |
Mechanical Properties (System)
Property |
Base Tube (T9) |
Tensile Strength |
≥ 415 MPa |
Yield Strength |
≥ 205 MPa |
Max Service Temp. |
600°C (1,112°F) |
Hardness |
≤ 179 HB |
Thermal Conductivity |
36.7 W/m·K |
· Refinery Heaters: Convection sections in CDU/VDU heaters (resists sulfidation).
· Chemical Reformers: Syngas coolers in methanol/ammonia plants.
· Waste Heat Recovery: Boilers in cement/steel mills (handles >80g/Nm³ fly ash).
· Power Generation: SCR system heat exchangers for coal-fired plants.
· Petrochemical: Cracking furnace convection tubes.
4. Why This Solution Dominates:
· 10-Year Lifespan: Withstands 650°C cyclic operation per NACE RP0492.
· Ash Erosion Resistance: Stud spacing blocks ash buildup – 40% lower fouling vs. helical fins.
· Cost Saving: 35% lower OPEX than refractory-lined carbon steel tubes.
· Customization: Stud height (15–40mm), diameter (3–8mm), and pitch optimization.