ASTM A403 WP321H-S 180° Return Bends High-Temp Resistant Stainless Steel For Furnace Piping

ASTM A403 WP321H-S 180° Return Bends: High-Temp Resistant Stainless Steel for Furnace Piping

Chemical Composition:

Mechanical Properties:

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• 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.

• Industrial furnace radiant coils

• Petrochemical reformer units

• Waste heat recovery systems

• Corrosive gas pipelines

• 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.

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.