Studded Tube, ASME AS335 P9 Alloy Steel Seamless Pipe with 11Cr (SS409) Stud, Fired Heater, Furnace Application
Price:
1--10000 USD
MOQ:
1PC
Delivery Time:
5---75 days
Brand:
YUHONG
Product Description
Studded Tube, ASME AS335 P9 Alloy Steel Seamless Pipe with 11Cr (SS409) Stud, Fired Heater, Furnace Application
Product Specifications
| Attribute | Value |
|---|---|
| Base Pipe Material | ASTM A335 / ASME SA335 GR.P9 |
| Fin Material | SS409 (1CR12), SS410(1Cr13), 11~13Cr, 11Cr, 13Cr |
| Stud Fin Diameter | 12.7mm, 15.88mm, 19.05mm |
| Stud Fin Height | 8mm ~ 50.8mm |
| Studded Tube Length | Max.: 34m/pc |
| Studded Tube Testing | Hammer Hit Testing |
Product Description
ASTM A335/ASME SA335 Gr. P9 Alloy Steel Studded Tubes are designed for convection chambers in heating furnaces within the petrochemical industry, significantly enhancing the heat transfer coefficient at the fuming side. These studded tubes offer two to three times the heat transfer surface area compared to standard light tubes.
Studded tubes are manufactured using power frequency contact-type resistance welding and upsetting force fusion welding, creating an integrated heat exchange component that maintains structural integrity while optimizing thermal performance.
Equivalent Grades
| ASTM | ASME | UNS | BS | ISO | JIS G 3458 |
|---|---|---|---|---|---|
| A335 P9 | SA335 P9 | S50400 | 3604 P1 629-470 | 2604 II TS38 | STPA 26 |
Key Advantages
- Optimal connection surface with minimal heat loss
- Welding connection rate exceeding 90%
- Eliminates need for welding power with virtually no welding tumor formation
- Narrow heated surface zone preserves base tube tissue integrity
- Precisely controlled welding parameters ensure consistent quality
Chemical Composition
| Compositions | % |
|---|---|
| Carbon(max.) | 0.15 |
| Manganese | 0.3-0.6 |
| Phosphorus(max.) | 0.025 |
| Silicon(max.) | 0.5 |
| Chromium | 4-6 |
| Molybdenum | 0.45-0.65 |
Mechanical Properties
| Tensile Strength, ksi [MPa], min | Yield Strength, ksi [MPa], min | Elongation (%), min |
|---|---|---|
| 60 [415] | 30 [205] | 30 |
Industrial Applications
- Heat exchangers and boilers
- Air coolers and oil fire furnaces
- Chemical processing equipment
- Petrochemical and petromedical systems
- Offshore platforms and fired heaters
- Specialized heating equipment
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Company
YUHONG HOLDING GROUP CO., LTD
Location
20 Floor, No.1 New World Building, NO.1018 Min'an Road, Yinzhou District, Ningbo, China, ZIP:315040
Contact Person
Sales Dept. (Marketing Director)