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 Requiremet |
| Packaging Details | Ply-wooden Cases with Steel Frames(both ends of pipes have plastic caps) |
| Bare Tube Specification&Material | ASME SA335 P22 |
| Fin Type | Solid Finned Tube / High Frequency Welding Finned Tube |
| Base Tube | 16mm-219mm |
| Fin Pitch | 3mm-25mm |
| Fin Hight | 5mm-30mm |
| Fin Thick | 0.8mm-3mm |
| Application | Furnace |
| Brand Name | YUHONG |
| Model Number | ASME SA335 P22 |
| Certification | DNV, BV, PED, LR, ABS, TS, CCS |
| 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 Requiremet | Packaging Details | Ply-wooden Cases with Steel Frames(both ends of pipes have plastic caps) |
| Bare Tube Specification&Material | ASME SA335 P22 | Fin Type | Solid Finned Tube / High Frequency Welding Finned Tube |
| Base Tube | 16mm-219mm | Fin Pitch | 3mm-25mm |
| Fin Hight | 5mm-30mm | Fin Thick | 0.8mm-3mm |
| Application | Furnace | Brand Name | YUHONG |
| Model Number | ASME SA335 P22 | Certification | DNV, BV, PED, LR, ABS, TS, CCS |
| Place of Origin | China | ||
| High Light | ASME SA335 Solid Finned Tube ，Refinary Application Solid Finned Tube ，P22 Alloy Steel Solid Finned Tube | ||
ASME SA335 P22 Alloy Steel HFW Solid Finned Tube for Refinary Application
1. Description of ASME A335 P22 HFW Finned Tube
The ASME A335 P22 High-Frequency Welded Finned Tube is a premium-grade heat transfer solution engineered for extreme temperature and pressure conditions. Constructed from ASME A335 P22 alloy steel (a chromium-molybdenum steel renowned for high-temperature strength), this finned tube features helical or longitudinal fins precision-welded using high-frequency currents. The HFW process ensures a seamless, crack-resistant bond between the P22 base tube and fins (commonly steel or corrosion-resistant alloys), delivering unmatched thermal efficiency, durability, and resistance to creep and oxidation. Certified to ASME standards, it is the go-to choice for critical applications in power generation, petrochemicals, and heavy industry.
2. Chemical & Mechanical Properties of ASME A335 P22 Bare Tube
Chemical Composition (Mass Percentage, %)
| Element | Range | Remarks |
|---|---|---|
| Carbon (C) | 0.05–0.15% | Affects strength and weldability |
| Manganese (Mn) | 0.30–0.60% | Enhances strength and hardenability |
| Silicon (Si) | ≤0.50% | Deoxidizer, improves toughness |
| Chromium (Cr) | 1.90–2.60% | Critical for high-temperature oxidation resistance |
| Molybdenum (Mo) | 0.87–1.13% | Improves high-temperature strength and creep resistance |
| Phosphorus (P) | ≤0.025% | Impurity control (lower is better) |
| Sulfur (S) | ≤0.025% | Impurity control (lower is better) |
| Others | Residuals per ASME | Elements like Cu, Ni restricted |
Mechanical Properties (Typical Values, Base Material)
| Property | Value Range | Test Standard/Condition |
|---|---|---|
| Tensile Strength (Rm) | ≥415 MPa | ASTM A370 |
| Yield Strength (Rp0.2) | ≥205 MPa | ASTM A370 |
| Elongation (A5) | ≥30% | 5D gauge length specimen |
| Hardness (Brinell HBW) | ≤163 HBW | Annealed/normalized + tempered condition |
| Charpy Impact (V-notch) | ≥20 J @ room temperature | ASTM A370 |
| High-Temperature Creep | Refer to temperature curves | e.g., 540℃ creep strength |
3. Key Applications
4. Why Choose ASME A335 P22 HFW Finned Tubes?
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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