ASME SA335 P9 Chromium-Molybdenum Alloy Studded Finned Tubes For High-Temperature Furnace Applications
ASME SA335 P9 Chromium-Molybdenum Alloy Studded Finned Tubes for High-Temperature Furnace Applications
High-Frequency Welded ASME SA335 P9 Studded Finned Tubes | Durable Chromium-Molybdenum Alloy for Extreme Heat Furnace Systems
Product Overview
Yuhong Holding Group Co., Ltd. introduces ASME SA335 P9 Studded Finned Tubes, engineered for high-temperature industrial applications. Utilizing high-frequency welding (HFW) technology, these tubes combine chromium-molybdenum alloy durability with optimized heat transfer efficiency.
Key Features
1. Material & Chemical Composition
- Base Material: ASME SA335 P9 Chromium-Molybdenum Alloy Steel.
- Fin Material: High-grade stainless steel (AISI 304/316L) for corrosion resistance.
- Chemical Composition:
| Element | Cr | Mo | C | Mn | Si |
|---|---|---|---|---|---|
| Composition | 8.0-10.0% | 0.90-1.10% | ≤0.15% | 0.30-0.60% | 0.50-1.0% |
Compliant with ASME and ASTM standards.
2. Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥620 MPa |
| Yield Strength | ≥415 MPa |
| Elongation (A50) | ≥20% |
| Operating Temperature | -20°C to 650°C |
3. Manufacturing Process
- High-Frequency Welding (HFW): Ensures 95% weld integrity between studs and base tube.
- Studded Fin Design: Spiral studs (diameter: 8-12mm) increase surface area by 3-5x.
- Post-Weld Treatment: Shot blasting and anti-corrosion coating (zinc or epoxy).
4. Applications
- High-Temperature Furnaces: Cement kilns, steel reheating furnaces.
- Heat Recovery Systems: Boilers, economizers.
- Oil & Gas: Crackers, reformers.
Advantages
- Enhanced Heat Transfer: 30-50% higher efficiency compared to smooth tubes.
- Corrosion Resistance: Suitable for acidic or sulfur-rich environments.
- Customization: Available in lengths up to 18m and stud configurations (helical/axial).
FAQ
Q1: What is the lead time for bulk orders?
A: Standard lead time is 4-6 weeks for 20-ft container loads.
Q2: Can these tubes withstand thermal cycling?
A: Yes, the ASME SA335 P9 alloy ensures stability under repeated heating/cooling.
Q3: Are certifications available?
A: We provide ASME, ISO 9001, and EN 10204-3.1 certifications.
About Yuhong Holding Group Co., Ltd.
With 20 years of expertise, Yuhong is a top-5 exporter of finned tubes in China, serving 80+ countries. Our facilities include:
- 55 production lines and 20,000㎡ factory area.
- 110+ skilled technicians dedicated to quality control.
- Advanced Equipment: CNC high-frequency welders, 3D laser cutting machines.
Contact "jimmy@steelseamlesspipe.com" to explore our full product range.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.