ASME SA335 P9 Alloy Steel High Frequency Welding Helical Solid Fin Pipe For Furnace
Price:
Negotiate
MOQ:
100 KGS
Delivery Time:
20-80 days
Brand:
YUHONG
Product Description
ASME SA335 P9 Alloy Steel High Frequency Welding Helical Solid Fin Pipe For Furnace
Product Specifications
| Attribute | Value |
|---|---|
| Product name | Finned Tube |
| Type | High Frequency Welded Finned Tube |
| Application | Heater Parts, Refrigeration Parts, Fluid Cooling |
| Dimensions | 88.9mm, 114.3mm, 168.3mm, etc. |
| Length | 1-30000mm |
| Fin height | 4-17mm |
| Tube material | Carbon Steel, Stainless Steel, Alloy Steel, Copper Etc |
| Fin material | Carbon Steel, Stainless Steel And Alloy Steel Etc |
| Warranty | 6 Months |
| Welding area | According to actual demand |
Product Overview
High-Frequency Welded ASME SA335 P9 Helical Finned Tubes are designed for extreme-temperature industrial furnace applications. These tubes combine chromium-molybdenum alloy durability with high-efficiency heat transfer, making them ideal for harsh environments.
Key Features
Material & Chemical Composition
- Base Tube: ASME SA335 P9 Chromium-Molybdenum Alloy Steel (Cr: 8.5-9.5%, Mo: 0.90-1.10%)
- Fin Material: High-grade stainless steel (AISI 304/316L) for corrosion resistance
Chemical Composition
| Element | Cr | Mo | C | Mn | Si |
|---|---|---|---|---|---|
| Composition | 8.5-9.5% | 0.90-1.10% | ≤0.15% | 0.30-0.60% | 0.50-1.0% |
Compliant with ASME SA335 and ASTM A213 standards.
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥620 MPa |
| Yield Strength | ≥440 MPa |
| Elongation (A50) | ≥20% |
| Operating Temperature | -20°C to 650°C |
Manufacturing Process
- High-Frequency Welding (HFW): Achieves 95% weld integrity between fins and base tube through automated spiral winding
- Post-Weld Treatment: Shot blasting + anti-corrosion coating (zinc or epoxy) for enhanced durability
- Quality Control: 100% hydrostatic testing (1.5x design pressure) and ultrasonic inspection
Applications
- High-Temperature Furnaces: Cement kilns, steel reheating systems
- Heat Recovery Units: Boilers, economizers, and air preheaters
- Oil & Gas: Crackers, reformers, and sulfur recovery units
Advantages
- Superior Heat Transfer: 4-7x higher efficiency than smooth tubes due to spiral fin design
- Corrosion Resistance: Withstands acidic/sulfur-rich environments (pH 2-12)
- Long Service Life: 2-3x lifespan over conventional welded tubes
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.
Why Choose Yuhong?
- 55 Production Lines: Fully automated HFW machines ensure consistent quality
- Global Reach: Exported to 80+ countries with on-time delivery
- Technical Support: 110+ engineers provide custom solutions for fin height (8-20mm) and pitch (4.5-15mm)
Contact Us
Email: jimmy@steelseamlesspipe.com
WhatsApp: +86 18892647377
Website: www.steelfintube.com
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
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)