ASTM A335 P5 Studded Tube - High Efficiency Heat Transfer for Boilers

Price Negotiable
Price: Negotiable
MOQ: 10PCS
Delivery Time: Depends on quantity
Brand: YUHONG
Product Description



STUDDED TUBE with A335 P5 Base Pipe: High-Temperature & Corrosion-Resistant Solution


1. Product Overview: Engineered for Extreme Conditions


YUHONG STUDDED TUBE features a base pipe made of ASTM A335 P5 alloy steel, designed for superior performance in high-temperature and corrosive environments. The tube is welded with high-strength studs (typically SS304/316) to maximize heat transfer efficiency in boilers, reactors, and heat recovery systems. Key specifications:


  • Operating Temp: Up to 650°C (1,202°F)


  • Pressure Rating: 20 MPa (2,900 PSI)


  • Stud Configuration: Custom pitch/diameter


  • Surface Treatment: Shot-blasted & anti-corrosion coating (optional)


2. Base Pipe Chemistry: Precision A335 P5 Alloy Composition


The A335 P5 base pipe delivers exceptional creep resistance and oxidation stability, critical for thermal applications. Certified to ASTM A335 standards:



Element Composition (%) Role in Performance
Chromium (Cr) 4.0–6.0 Enhances oxidation resistance
Molybdenum (Mo) 0.45–0.65 Improves high-temperature strength
Carbon (C) ≤0.15 Balances weldability & hardness
Manganese (Mn) 0.30–0.60 Increases toughness
Silicon (Si) 0.50 max Deoxidizes for purity
Phosphorus (P) ≤0.025 Reduces brittleness
Sulfur (S) ≤0.025 Minimizes hot cracking


3. Applications: Mastering Thermal & Abrasive Challenges


  • Power Generation: Boiler tubes in coal-fired plants (sulfur corrosion resistance).


  • Petrochemical: Reactor internals for cracking units (temp. >550°C).


  • Waste-to-Energy: Heat exchanger tubes in incinerators (abrasion/acid resistance).


  • Cement Industry: Preheater ducts for kilns (thermal cycling endurance).


4. Customization: Tailored for Your System


We engineer studded tubes to exact operational demands:


  • Stud Patterns: Radial/helical layouts; materials (SS310, Inconel®).


  • Dimensions: Base pipe OD 25–500mm; length ≤18m.


  • Certifications: EN 10204 3.1, ASME Section IX welding compliance.


  • Testing: 100% RT/UT, hydrostatic tests per ASTM A450.


5. Why Choose Us: Expertise in High-Performance Alloys


a. Metallurgical Excellence


  • 15+ years specializing in ASTM A335 P-series alloys (P5, P9, P11).


  • In-house R&D for weld integrity (stud-to-base fusion control).


b. Quality Assurance


  • Traceability: Mill test reports + third-party validation (SGS/BV).


  • Compliance: ASME B31.1, PED 2014/68/EU.



Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Yuhong Group Co.,Ltd
Location 20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
Contact Person Jikin Cai

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