ASTM A403 WP321H-S 180° Return Bends High-Temp Resistant Stainless Steel For Furnace Piping
Price:
Negotiable
MOQ:
100 KGS
Delivery Time:
20-80 days
Brand:
Yuhong
Product Description
ASTM A403 WP321H-S 180° Return Bends: High-Temp Resistant Stainless Steel for Furnace Piping
Yuhong Holding Group presents ASTM A403 WP321H-S 180° return bends, engineered for critical furnace connections in corrosive and high-temperature environments. These elbows ensure seamless flow in finned tube systems, combining durability with precision performance.
Material & Chemistry
Crafted from TP321H-S stainless steel, stabilized with titanium to resist carbide precipitation, ideal for elevated temperatures:
| Type | Radius | Size Range |
| Short Radius | R=1.0 x Nominal Dia. | 1/2" - 24" |
| Customized | As per requirement | Available |
Chemical Composition:
| Element | C | Mn | P | S | Si | Cr | Ni |
| % | 0.04-0.10 | ≤2.00 | ≤0.045 | ≤0.03 | ≤1.00 | 17-19 | 9-12 |
Mechanical Properties:
|
Property
|
Tensile Strength
|
Yield Strength
|
Elongation
|
Max Operating Temp
|
Corrosion Resistance
|
|
Value
|
≥515 MPa
|
≥205 MPa
|
≥30%
|
870°C
|
Excellent in oxidizing environments
|
Manufacturing & Design
- Precision Forging: Ensures uniform wall thickness and tight radius tolerance (1.5D standard).
- Solution Annealing: 925–1010°C heat treatment enhances grain structure for high-temperature stability.
- HF Weld Compatibility: Matches finned tube systems with seamless integration in heater circuits.
Applications
Perfect for:
- Industrial furnace radiant coils
- Petrochemical reformer units
- Waste heat recovery systems
- Corrosive gas pipelines
Key Advantages
- Carbide Stability: Titanium addition prevents intergranular corrosion under cyclic heating.
- Thermal Fatigue Resistance: Handles rapid temperature fluctuations common in furnace operations.
- Dimensional Accuracy: Tight tolerances reduce flow turbulence and pressure drop.
FAQ
Q: Can these bends be used with acidic fuels?
A: Yes, TP321H-S resists sulfuric and nitric acid corrosion typical in industrial exhaust.
Q: What sizes are available?
A: Standard sizes ½"–12", with custom dimensions for specific furnace layouts.
About Yuhong Holding Group
With 20 years exporting to 80 countries, we rank among China’s top 5 finned tube suppliers. Our 20,000㎡ facility houses 55 production lines and 110 experts, delivering advanced heating components. We offer full-range accessories, from elbows to custom fittings, backed by strict quality controls.
Contact: jimmy@steelseamlesspipe.com | WhatsApp: +86 18892647377
Visit www.steelfintube.com for technical specs and certifications.
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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.