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China ASTM A790 S32750 Super Duplex Seamless Boiler Tube High Corrosion Pressure
China ASTM A790 S32750 Super Duplex Seamless Boiler Tube High Corrosion Pressure

  1. China ASTM A790 S32750 Super Duplex Seamless Boiler Tube High Corrosion Pressure
  2. China ASTM A790 S32750 Super Duplex Seamless Boiler Tube High Corrosion Pressure
  3. China ASTM A790 S32750 Super Duplex Seamless Boiler Tube High Corrosion Pressure
  4. China ASTM A790 S32750 Super Duplex Seamless Boiler Tube High Corrosion Pressure

ASTM A790 S32750 Super Duplex Seamless Boiler Tube High Corrosion Pressure

  1. MOQ: 100 KGS
  2. Price: NEGOTIABLE
  3. Get Latest Price
Payment Terms T/T, L/C
Supply Ability YUHONG HOLDING GROUP CO., LTD
Delivery Time 20-80 days
Packaging Details Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Standard ASTM A789, A790
Surface Treatment Pickled and Annealed
Category Duplex Stainless Steel
Type Boiler Tube
Steel Grade S31803, S32750, S32760
Section Shape Round
Length Customized
Features High Temperature Resistance, Corrosion Resistance, High Pressure Resistance
Size Length Max.: 34m/pc
Brand Name YUHONG
Model Number ASTM A790 S32750
Certification ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin China

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Product Specification

Payment Terms T/T, L/C Supply Ability YUHONG HOLDING GROUP CO., LTD
Delivery Time 20-80 days Packaging Details Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Standard ASTM A789, A790 Surface Treatment Pickled and Annealed
Category Duplex Stainless Steel Type Boiler Tube
Steel Grade S31803, S32750, S32760 Section Shape Round
Length Customized Features High Temperature Resistance, Corrosion Resistance, High Pressure Resistance
Size Length Max.: 34m/pc Brand Name YUHONG
Model Number ASTM A790 S32750 Certification ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin China
High Light Pressure Resistance Duplex Seamless Boiler TubeHigh Corrosion Duplex Seamless Boiler TubeASTM A790 Duplex Seamless Boiler Tube

ASTM A790 S32750 Super Duplex Seamless Boiler Tube – High Corrosion & Pressure Resistance

​1. Product Overview​

​ASTM A790 S32750 Super Duplex Seamless Boiler Tubes​​ are engineered for extreme environments in boilers, heat exchangers, and offshore platforms. Manufactured under ASTM A790/ASME SA790 standards, these tubes combine exceptional corrosion resistance with high mechanical strength, ideal for chloride-rich and high-pressure applications.

​2. Material & Chemical Composition​

  • ​Material​​: Super Duplex Stainless Steel (UNS S32750, equivalent to ​​2507​​).
  • ​Key Chemical Properties​​:
Element Content (%)
Chromium (Cr) 24.0–26.0
Nickel (Ni) 6.0–8.0
Molybdenum (Mo) 3.0–5.0
Nitrogen (N) 0.24–0.32
Carbon (C) ≤0.030

​3. Mechanical Properties​

Property Value
Tensile Strength ≥800 MPa
Yield Strength ≥550 MPa
Elongation ≥15%
Hardness ≤310 HB

​4. Key Features & Advantages​

  • ​Superior Corrosion Resistance​​: Resists pitting, crevice, and stress corrosion cracking (PREN >40).
  • ​High-Temperature Performance​​: Suitable for ​​-50°C to 300°C​​ environments.
  • ​Seamless Design​​: No welds, ensuring leak-proof performance under high pressure.
  • ​Certified Quality​​: Complies with ​​ASTM A790, ASME SA790, and EN 10216-5​​.

​5. Applications​

  • ​Oil & Gas​​: Subsea pipelines, FPSO systems.
  • ​Chemical Processing​​: Acid transport, flue gas desulfurization (FGD).
  • ​Power Plants​​: High-pressure steam boilers.

​6. FAQ​

​Q: How does S32750 compare to standard duplex grades like 2205?​
A: S32750 has higher Cr, Mo, and N content, offering ​​50% greater strength​​ and ​​better chloride resistance​​.

 

​Q: Can you supply custom sizes?​
A: Yes! We support OD: ​​10–1200mm​​, thickness: ​​1–50mm​​, and lengths up to ​​18m​​.


​About Yuhong Holding Group Co., Ltd​

With ​​20+ years of export experience​​, Yuhong Group is a top-5 Chinese manufacturer of finned tubes and seamless pipes. Our ​​55 production lines​​ and ​​20,000㎡ facility​​ ensure high-capacity output, while advanced technology guarantees precision.

  • ​Website​​: www.steelfintube.com
  • ​Contact​​: Jimmy (Email: jimmy@steelseamlesspipe.com, WhatsApp: +86 18892647377).

 

Company Details

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 from Quality China Factory
  • Business Type:

    Manufacturer,Importer,Exporter,Trading Company,Seller,Other

  • Year Established:

    1990

  • Total Annual:

    50M-70M

  • Employee Number:

    50~800

  • Ecer Certification:

    Verified Supplier

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. &n... 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. &n...

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  • YUHONG HOLDING GROUP CO., LTD
  • 20 Floor, No.1 New World Building, NO.1018 Min'an Road, Yinzhou District, Ningbo, China, ZIP:315040
  • https://www.steelfintube.com/

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