ASTM A403 WP321 Stainless Steel 180° Return Bends High Performance For Furnace Corrosive Environment

ASTM A403 WP321 Stainless Steel 180° Return Bends High-Performance For Furnace Corrosive Environment

Product Specifications:

Material Standard: ASTM A403 WP321 (321 Stainless Steel)

Available Configurations:

Chemical Composition:

Mechanical Properties:

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• Tensile Strength: ≥515 MPa
• Yield Strength: ≥205 MPa
• Elongation: ≥35%
• Hardness: ≤187 HB

Manufacturing Process:

1. Raw material inspection
2. Cold/Hot forming
3. Solution heat treatment
4. Surface finishing
5. NDT testing
6. Dimensional inspection
7. Quality control

Key Features:

• Excellent corrosion resistance
• Superior high-temperature stability
• Outstanding mechanical properties
• Precise dimensional accuracy
• Smooth surface finish
• Enhanced titanium stabilization

Applications:

• Chemical processing equipment
• Food processing systems
• Pharmaceutical industry
• Marine applications
• Nuclear power plants
• High-temperature heat exchangers

Quality Assurance:

• ISO 9001:2015 certified
• PED 2014/68/EU approved
• ASME certified facility
• Full material traceability
• Third-party inspection available

Frequently Asked Questions:

Q: What is the maximum operating temperature?
A: Up to 816°C (1500°F) for continuous service

Q: Are custom specifications available?
A: Yes, we can manufacture according to customer specifications

Q: What are the standard surface treatments?
A: Pickled and passivated, additional treatments available upon request

About Yuhong Holding Group:

Yuhong Holding Group - Your Trusted Partner in Industrial Heat Exchange Solutions

As a leading manufacturer with 20 years of export experience to 80 countries, Yuhong Holding Group specializes in premium heat exchange components. Our 20,000-square-meter facility houses 55 production lines and over 110 skilled professionals, ensuring world-class manufacturing standards.

Ranking among China's top 5 finned tube exporters, we combine advanced manufacturing technology with stringent quality control to deliver exceptional products. Our commitment to excellence and customer satisfaction has earned us trust worldwide.

Contact our technical team for detailed specifications and customized solutions to meet your specific requirements.

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.   The factories already got certificates like : ABS, LR, DNV-GL, BV, KR, CCS, ASME, ISO 9001, ISO14001, ISO18001, ect.

Our factories main products as below : 
Factory 1th: Stainless steel seamless tube, Duplex steel seamless tube, Super duplex steel seamless tube, Nickel alloy steel seamless tube;

Factory 2th: Carbon steel seamless tube, Alloy steel seamless tube; Enhanced Heat Tranfer Tube, low fin tube ,U bending workshop;
Factory 3th: High frequency welding fin tube(HFW fin tube, Solid Fin tube, Studded Tube, Serrated Fin tube, Longitudinal welding fin tube), Wound fin tube(L type fin tube, LL type fin tube,  KL type fin tube), Embedded G type fin tube , Extruded fin tube,  low fin tube, U bend & 180deg. Return;

Yuhong Holding Group also has gained rich experience for project package( products contain:Pipes, Fittings, Flanges, heat exchanger, furnace, fired heater, air cooler, boiler) , YUHONG brand has marked its global presence in more than 85 countries, like, Korea, USA, Canada, Mexico, Colombia, Bolivia, Chile, Argentina, Brazil, Ecuador, Austria, New Zealand, Singapore, Malasyia, Indonesia, Thailand, Vietnam, Ukraine, Turkey,Sauid Arabia, Qatar, U.A.E,Israel,India, UK, France, Italy, Gernmany, Poland, Spain,... We have successfully implemented the orders of Cross Country Pipelines for our valuable customers. In addition, we have also developed a huge network of contacts and strategic alliances with most important manufacturers as stockists around the world.