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ASME U Stamp Certified SA334 Gr.6 Carbon Steel U-Bend Bundle for Ammonia Exchangers

ASME U Stamp Certified SA334 Gr.6 Carbon Steel U-Bend Bundle for Ammonia Exchangers

Carbon Steel U Tube Bundle

ASME SA334 U Tube Bundle

ASME SA334 heat exchanger bundle

Place of Origin:

CHINA

Brand Name:

YUHONG

Certification:

ASME, TEMA

Model Number:

Tube bundle

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Product Details
Heat Exchanger Type:
U Bend Tube Bundle
TEMA Type:
CFU
Material:
ASME SA334 GRADE 6
Outer Diameter, OD:
19.05MM
Wall Thickness:
2.11MM
Application:
Ammonia Exchangers
Highlight:
U Bend Tube Heat Exchanger
Highlight:

Carbon Steel U Tube Bundle

,

ASME SA334 U Tube Bundle

,

ASME SA334 heat exchanger bundle

Payment & Shipping Terms
Minimum Order Quantity
1 SET
Price
Depend on drawing
Packaging Details
Ply-wooden Case /Iron Case/ Bundle with plastic Cap etc.
Delivery Time
20-80 days
Payment Terms
T/T, L/C, D/A
Supply Ability
60 SETS/MONTH
Product Description

ASME U Stamp Certified SA334 Gr.6 Carbon Steel U-Bend Bundle for Ammonia Exchangers

 

Yuhong Holding Group Co., Ltd is a globally recognized manufacturer and supplier of industrial equipment, specializing in heat exchangers, fired heaters, air coolers, and related components. With years of expertise and a production capacity exceeding 6000 tons annually, we are committed to delivering high-quality solutions to meet the rigorous demands of various industries. Among our premium products is the ASME SA334 GRADE 6 Carbon Steel Seamless U Bend Tube Bundle, designed for efficient heat transfer in heat exchangers.


SA334 Gr.6 Carbon Steel U-Bend Bundle Chemical Composition and Mechanical Properties

 

ASME SA334 GRADE 6 is a low-temperature carbon steel known for its excellent toughness, durability, and machinability. It is widely used in heat exchangers and other critical applications, especially in environments where low-temperature performance is essential.

 

Chemical Composition of SA334 GRADE 6

Element Composition (%)
Carbon (C) ≤ 0.30
Manganese (Mn) 0.29–1.06
Phosphorus (P) ≤ 0.025
Sulfur (S) ≤ 0.025
Silicon (Si) 0.10 min

 

Mechanical Properties of SA334 GRADE 6

Property Value
Tensile Strength ≥ 415 MPa (60,000 psi)
Yield Strength ≥ 240 MPa (35,000 psi)
Elongation ≥ 30%
Impact Test Passed at -50°F (-45°C)

The combination of strength, ductility, and low-temperature impact resistance makes SA334 GRADE 6 an ideal choice for heat exchanger tube bundles.


Common Types of Heat Exchanger Tube Bundles

 

Heat exchanger tube bundles are essential components that facilitate heat transfer between fluids. The U Bend Tube Bundle is one of the most efficient designs, allowing for thermal expansion and contraction without causing stress on the tubes.

Types of Tube Bundles

  1. Straight Tube Bundles: Designed for heat exchangers where space and thermal expansion are not constraints.
  2. U Bend Tube Bundles: Ideal for compact heat exchangers, enabling high thermal efficiency and accommodating thermal expansion.
  3. Floating Head Tube Bundles: Used in applications with frequent cleaning requirements, as they allow easy disassembly.
  4. Fixed Tube Sheet Bundles: Suitable for non-corrosive and low-fouling fluids.

The U Bend Tube Bundle offered by Yuhong Holding Group is seamlessly manufactured and designed to deliver superior performance in heat exchanger applications.


Testing Requirements for SA334 Gr.6 Carbon Steel U-Bend Bundle

 

To ensure the highest quality and reliability, heat exchanger tube bundles must undergo rigorous testing. At Yuhong Holding Group, every tube bundle is tested to meet or exceed industry standards.

Key Tests for U Bend Tube Bundles

  1. Hydrostatic Testing: Ensures the tubes can withstand high pressures without leakage.
  2. Non-Destructive Testing (NDT): Includes eddy current testing and ultrasonic testing to detect surface and subsurface defects.
  3. Dimensional Inspection: Verifies the accuracy of U bends, tube lengths, and diameters.
  4. Hardness Testing: Ensures the material meets the required mechanical properties.
  5. Low-Temperature Impact Testing: Confirms the toughness of the material at low operating temperatures.
  6. Visual Inspection: Examines the surface for any visible defects or imperfections.

Each tube bundle we produce is accompanied by detailed test reports and certifications to guarantee its quality and performance.


Applications of SA334 Gr.6 Carbon Steel U-Bend Bundle

 

U Bend Tube Bundles are widely used in various industries for their outstanding heat transfer efficiency and durability. Key application areas include:

  • Petrochemical Plants: For heat recovery and cooling systems.
  • Power Plants: Used in steam condensers and feedwater heaters.
  • Oil and Gas Industry: For processing and refining operations.
  • Chemical Processing: Where high-performance heat exchangers are critical.
  • HVAC Systems: For air conditioning and refrigeration systems.
  • Food and Beverage Industry: Used in sanitary heat exchangers.

ASME U Stamp Certified SA334 Gr.6 Carbon Steel U-Bend Bundle for Ammonia Exchangers 0

Ratings& Review

Overall Rating

4.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
33%
4 stars
33%
3 stars
33%
2 stars
0%
1 stars
0%

All Reviews

C
Carlos Eduardo Silva
Brazil Sep 3.2025
Excelente equipamento! The vessel arrived at Santos port with perfect preservation—nitrogen purging maintained, desiccant bags intact. The Portuguese-language operation manual and training videos were surprisingly detailed. We appreciate the attention to seismic design for Zone 4 per ASCE 7—important for Brazilian offshore applications.
T
Tanaka
Japan Jul 26.2025
The QA/QC system is comparable to Japanese pressure vessel manufacturers. We requested additional UT testing on all Category A joints, and they accommodated without delay. The external surface preparation (Sa2.5 blasting + epoxy coating) was executed perfectly for our coastal installation. The 200,000L capacity with such a compact footprint demonstrates excellent engineering optimization. 納期も守られました。Will consider for future LNG pre-treatment projects.
M
Mitchell
United States Jun 17.2025
We've been sourcing pressure vessels for 30 years, and this unit's ASME U-stamp certification gave us confidence from day one. The SA516 GR.70 material traceability documentation was impeccable—full MTRs, NDE reports, and third-party inspection by TÜV. Delivery to Houston was 3 weeks ahead of schedule. The 200kL capacity fits perfectly into our hydrocracker expansion project. Weld quality exceeded API 510 standards. Definitely adding this manufacturer to our approved vendor list.

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