YUHONG HOLDING GROUP CO., LTD
| Delivery Time | 50-120 days |
| Payment Terms | T/T,L/C |
| Material | ASTM A213 T11 |
| Packaging Details | Iron frame wooden case |
| Package | Iron frame wooden case |
| Application | Boiler economizers, Waste heat recovery boilers, Industrial boiler systems, Heat recovery units, Flue gas heat recovery equipment |
| Supply Ability | 5000 meters/day |
| Product | Serrated Fin Tube |
| Model Number | N/A |
| Brand Name | YUHONG |
| Place of Origin | China |
| Certification | ISO9001:2015; ISO14001:2015; ISO45001:2018; PED 2014/68/EU; WPS/PQR/WPQ; ISO 3834 |
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Product Specification
| Delivery Time | 50-120 days | Payment Terms | T/T,L/C |
| Material | ASTM A213 T11 | Packaging Details | Iron frame wooden case |
| Package | Iron frame wooden case | Application | Boiler economizers, Waste heat recovery boilers, Industrial boiler systems, Heat recovery units, Flue gas heat recovery equipment |
| Supply Ability | 5000 meters/day | Product | Serrated Fin Tube |
| Model Number | N/A | Brand Name | YUHONG |
| Place of Origin | China | Certification | ISO9001:2015; ISO14001:2015; ISO45001:2018; PED 2014/68/EU; WPS/PQR/WPQ; ISO 3834 |
ASTM A213 T11 serrated finned tubes are high-temperature heat-transfer tubes designed for economizers, waste heat recovery boilers, industrial boilers, and other gas-side heat recovery systems. The tube uses ASTM A213 Grade T11 seamless low-alloy steel as the base tube and a serrated fin structure to increase the external heat-transfer surface.
The T11 base tube is a chromium-molybdenum alloy steel developed for boiler, superheater, and heat-exchanger service. Its controlled chromium and molybdenum content provides the material characteristics required for elevated-temperature applications, while the serrated fin geometry increases the effective heat-transfer area and promotes gas-side flow disturbance.
Our serrated finned tubes can be manufactured to project-specific tube dimensions, fin dimensions, fin material, fin density, tube length, and inspection requirements.
ASTM A213 T11 serrated finned tubes are commonly considered for:
The serrated fin design is particularly suitable where increased external surface area and controlled gas-side pressure drop are important design considerations.
ASTM A213 T11 is a seamless ferritic alloy-steel grade containing chromium and molybdenum. ASTM A213 specifies T11 within its low-alloy steel grades for boiler, superheater, and heat-exchanger tubes.
| Element | ASTM A213 T11 Requirement, wt.% |
|---|---|
| Carbon (C) | 0.05–0.15 |
| Manganese (Mn) | 0.30–0.60 |
| Silicon (Si) | 0.50–1.00 |
| Phosphorus (P) | ≤0.025 |
| Sulfur (S) | ≤0.025 |
| Chromium (Cr) | 1.00–1.50 |
| Molybdenum (Mo) | 0.44–0.65 |
| Nickel (Ni) | No specified requirement |
| Vanadium (V) | No specified requirement |
The chromium-molybdenum composition is a defining characteristic of T11 and distinguishes it from conventional carbon-steel boiler tube grades. Chemical composition is verified against the applicable material standard and reported on the material test certificate.
The typical minimum mechanical requirements for ASTM A213 T11 include:
| Property | ASTM A213 T11 Requirement |
|---|---|
| Tensile Strength | ≥415 MPa |
| Yield Strength | ≥205 MPa |
| Elongation | ≥30% |
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
50M-70M
Employee Number:
50~800
Ecer Certification：
Verified Supplier
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...
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