YUHONG HOLDING GROUP CO., LTD
| Payment Terms | L/C,T/T,AT SIGHT |
| Supply Ability | According to Clients' requirements |
| Delivery Time | 45-75 Days (Depend on Customer's Requirement） |
| Packaging Details | Ply-wooden Cases with Steel Frames(both ends of pipes have plastic caps） |
| Fin Type | Extruded Fin Tube |
| Bare Tube Standard | ASME SA249 |
| Bare Tube Material | TP304L（1.4307） |
| Application | Heat Exchangers，Air-cooled Exchangers, Refinery air cooler，Boiler economizer |
| Fin Material | Aluminum |
| Bare Tube Diameter | 8~51mm |
| Fin Height | ＜17mm |
| Fin Thickness | 0.2~0.4mm |
| Brand Name | YUHONG |
| Certification | ABS, BV, ISO, ASTM, SGS |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,T/T,AT SIGHT | Supply Ability | According to Clients' requirements |
| Delivery Time | 45-75 Days (Depend on Customer's Requirement） | Packaging Details | Ply-wooden Cases with Steel Frames(both ends of pipes have plastic caps） |
| Fin Type | Extruded Fin Tube | Bare Tube Standard | ASME SA249 |
| Bare Tube Material | TP304L（1.4307） | Application | Heat Exchangers，Air-cooled Exchangers, Refinery air cooler，Boiler economizer |
| Fin Material | Aluminum | Bare Tube Diameter | 8~51mm |
| Fin Height | ＜17mm | Fin Thickness | 0.2~0.4mm |
| Brand Name | YUHONG | Certification | ABS, BV, ISO, ASTM, SGS |
| Place of Origin | China | ||
| High Light | ASME SA249 TP304L welded fin tube ，extruded fin tube for heat exchanger ，high-integrity welded fin tube | ||
ASME SA249 is a standard specification for welded austenitic stainless steel tubes for boiler, superheater, heat exchanger and condenser applications. TP304L, as a low-carbon variant of TP304 (carbon content ≤0.03%), boasts excellent intergranular corrosion resistance after welding—its core alloy composition (18.00-20.00% Cr, 8.00-12.00% Ni) endows it with superior general corrosion resistance. The "Welded Extruded Fin Tube" refers to a high-efficiency heat transfer component fabricated by first forming a welded base tube per ASME SA249, then extruding fin strips onto the outer surface via mechanical extrusion. Its defining features include the TP304L base material (ensuring corrosion resistance and post-weld stability) and the extruded fin structure (realizing tight fin-base tube bonding with low contact thermal resistance). It addresses the demand for efficient heat exchange in medium-low temperature corrosive environments, serving as a key component in chemical, food and marine heat transfer systems.
ASME SA249 TP304L Welded Extruded Fin Tube is a corrosion-resistant, high-efficiency heat transfer product tailored for medium-low temperature (≤450℃) corrosive scenarios, widely used in chemical condensers, food processing heat exchangers and marine cooling equipment.
| Element | C | Si | Mn | Cr | Ni | P | S | N |
| Range | ≤0.03% | ≤1.00% | ≤2.00% | 18.00-20.00% | 8.00-12.00% | ≤0.045% | ≤0.030% | ≤0.10% |
| Tensile Strength | Yield Strength (0.2% Offset) | Hardness (HB) | Elongation (in 200mm) |
| ≥485MPa | ≥170MPa | ≤187HB | ≥40% |
| ASME/ASTM | UNS NO. | EN | JIS | GOST | ISO |
| SA249 TP304L/A249 TP304L | S30403 | 1.4307 | SUS304L | 03X18H11 | X2CrNi18-10 |
TP304L vs. TP304 Welded Extruded Fin Tube: Both share similar general corrosion resistance and heat transfer performance, but TP304L’s low carbon content (≤0.03%) eliminates intergranular corrosion risks after welding—critical for welded heat exchanger systems in corrosive environments. TP304 (C≤0.08%) is more cost-effective but unsuitable for post-weld corrosive scenarios. TP304L also has slightly lower strength but superior weldability.
TP304L vs. TP316L Welded Extruded Fin Tube: TP316L contains 2-3% Mo, offering better resistance to chloride-induced pitting (e.g., seawater, brine) than TP304L. However, TP304L has higher thermal conductivity (~16.2W/(m·K) vs. TP316L’s ~15.1W/(m·K)) and 20-30% lower cost. TP304L fits general corrosive media (weak acids, alkalis), while TP316L suits harsh chloride environments.
1.Chemical & Petrochemical: Heat exchangers and condensers for corrosive process streams (e.g., acids, organics).
2.Pharmaceutical & Food Processing: Critical equipment requiring hygienic, cleanable surfaces and material purity (e.g., reactors, pasteurizers).
3.Power Generation: Auxiliary heat exchangers exposed to potentially corrosive environments (e.g., feedwater heaters, lube oil coolers).
4.Air Pollution Control: Heat recovery units handling acidic flue gas condensate (e.g., condensing economizers).
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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