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ASTM SA179 Seamless Carbon Steel Tube For Fixed Tube Sheet Heat Exchanger

ASTM SA179 Seamless Carbon Steel Tube For Fixed Tube Sheet Heat Exchanger

  • ASTM SA179 Seamless Carbon Steel Tube For Fixed Tube Sheet Heat Exchanger
  • ASTM SA179 Seamless Carbon Steel Tube For Fixed Tube Sheet Heat Exchanger
  • ASTM SA179 Seamless Carbon Steel Tube For Fixed Tube Sheet Heat Exchanger
  • ASTM SA179 Seamless Carbon Steel Tube For Fixed Tube Sheet Heat Exchanger
ASTM SA179 Seamless Carbon Steel Tube For Fixed Tube Sheet Heat Exchanger
Product Details:
Place of Origin: CN
Brand Name: YUHONG
Certification: ASME U Stamp, PED 2014/68/EU, ISO 9001/14001
Model Number: Fixed Tube Sheet Heat Exchanger
Payment & Shipping Terms:
Minimum Order Quantity: 1 SET
Price: Negotiable
Packaging Details: Weatherproofed with steel skids for ocean freight
Delivery Time: 120 days
Payment Terms: T/T, L/C AT SIGHT
Supply Ability: 15 SETS/MONTH
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Detailed Product Description
Tube: ASTM SA179 Seamless Carbon Steel Tube ​Design Pressure (Tube): 4.0 MPa (580 Psi)
Tube OD: 19.05 Mm Tubesheet: SA516 Gr.70 + SS309L Clad Layer (Explosion-Bonded)
Design Pressure (Shell): 2.5 MPa (362 Psi) Shell: ASTM SA516 Gr.70 Carbon Steel
​Baffle Material: SA516 Gr.70 Carbon Steel (25% Baffle Cut, Segmental)
Highlight:

ASTM SA179 Seamless Carbon Steel tube

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Heat Exchanger Seamless Carbon Steel tube

ASTM SA179 Seamless Carbon Steel tube for Fixed Tube Sheet Heat Exchanger

 

Yuhong Holding Group Co., Ltd is a globally recognized leader in the manufacturing and supply of industrial equipment, including heat exchangers, fired heaters, air coolers, and their critical components. With decades of expertise and a commitment to delivering the highest quality products, we serve customers across various industries worldwide. Among our premium offerings is the ASTM SA179 Seamless Carbon Steel Tube, specifically designed for Fixed Tube Sheet Heat Exchangers. Renowned for its excellent thermal conductivity, durability, and reliability, SA179 seamless tubes are the ideal choice for efficient and long-lasting heat exchanger systems.


1. ASTM SA179 Chemical Composition and Mechanical Properties

Element Composition (%)
Carbon (C) ≤ 0.06
Manganese (Mn) 0.27–0.63
Phosphorus (P) ≤ 0.035
Sulfur (S) ≤ 0.035

The low carbon content in SA179 minimizes the risk of carbide precipitation, ensuring superior ductility and weldability while maintaining excellent thermal conductivity.

 

Property Value
Tensile Strength ≥ 325 MPa (47,000 psi)
Yield Strength ≥ 180 MPa (26,000 psi)
Elongation ≥ 35%
Hardness ≤ 72 HRB

These mechanical properties ensure that SA179 seamless tubes can withstand high pressures and temperatures while maintaining structural integrity and efficient heat transfer.


2. Technical Specifications

 

No. Parameter Specification
1 Design Pressure (Shell) 2.5 MPa (362 psi)
2 Design Pressure (Tube) 4.0 MPa (580 psi)
3 Nozzle Standards ANSI B16.5 RF Flanges (Class 150/300)
4 Flange Material ASTM A105 Forged Carbon Steel
5 Gasket Type Spiral-Wound (SS316L + Graphite Filler)
6 Bolting ASTM A193 B7 Studs + A194 2H Nuts
7 Supports Fixed Saddle Supports (SA516 Gr.70)
8 Surface Finish (Shell) Sandblasted (SA 2.5) + Epoxy Coating (≥120 μm)
9 Tube Interior Finish Electropolished (Ra ≤0.8 μm)
10 Thermal Efficiency ≥95% (Clean Condition)
11 Heat Transfer Coefficient 500–1,200 W/m²·K (Varies with Steam Velocity)
12 Shell-Side Pressure Drop ≤0.05 MPa (7.25 psi)
13 Tube-Side Pressure Drop ≤0.1 MPa (14.5 psi)
14 Fouling Resistance 0.0002 m²·K/W (Tube Side) / 0.0001 m²·K/W (Shell Side)
15 Max Steam Flow Rate 50–200 t/h
16 Condensing Capacity 10–100 MW
17 Welding Standards ASME Sec IX (SAW for Longitudinal Welds, GTAW for Tube-to-Tubesheet Joints)
18 NDT Methods 100% RT (Shell Welds), PT (Tubesheet Joints), UT (Clad Bond Integrity)
19 Hydrostatic Test 1.5× Design Pressure (30 Minutes, Zero Leakage)
20 Pneumatic Test 1.1× Design Pressure (Helium Mass Spectrometry Leak Detection)
21 Third-Party Inspection TÜV/SGS Witnessed (Optional)
22 Certifications ASME U Stamp, PED 2014/68/EU, ISO 9001/14001
23 Installation Environment Indoor/Outdoor (IP55 Protection), Seismic Zone 4 (IBC 2018)
 

3. Fixed Tube Sheet Heat Exchanger Design

 

Fixed tube sheet heat exchangers are one of the most common types of heat exchangers. They are designed with tubes permanently attached to the tube sheet, providing a simple and robust construction. The ASTM SA179 Seamless Carbon Steel Tubes are perfectly suited for these systems due to their excellent heat transfer properties and ability to withstand high pressures and temperatures.

Advantages of Fixed Tube Sheet Heat Exchangers

  1. Cost-Effective Design:

    • Simple construction with no floating components, reducing manufacturing and maintenance costs.
  2. High Efficiency:

    • The large surface area of the tubes allows for efficient heat transfer between fluids.
  3. Durability:

    • Fixed tube sheet designs are robust and capable of handling harsh operating conditions.
  4. Wide Range of Applications:

    • Suitable for various fluids, including liquids and gases, making them versatile for different industries.

4. Applications of ASTM SA179 Seamless Tubes

 

The ASTM SA179 Seamless Carbon Steel Tubes are used in a wide range of industrial applications where efficient heat transfer is essential. These tubes are particularly suitable for fixed tube sheet heat exchangers operating under high pressures and temperatures.

Key Application Areas

  1. Petrochemical Industry:

    • Used in heat exchangers for refining processes, chemical plants, and gas processing facilities.
  2. Power Generation:

    • In steam condensers, feedwater heaters, and other critical heat exchangers in power plants.
  3. Oil and Gas Industry:

    • Suitable for offshore platforms, pipelines, and processing plants where reliable heat transfer is critical.
  4. HVAC Systems:

    • Used in large-scale heating, ventilation, and air conditioning systems for cooling and heating.
  5. Food and Beverage Industry:

    • In sanitary heat exchangers for processes requiring high-quality heat transfer and cleanliness.
  6. Chemical Processing:

    • Ideal for reactors and heat exchangers in chemical manufacturing plants.

ASTM SA179 Seamless Carbon Steel Tube For Fixed Tube Sheet Heat Exchanger 0

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