Products Description
S32760 Duplex Stainless Steel Pipe is widely used in high-corrosion and high-strength industrial fields such as petroleum refining, chemical industry, seawater treatment, papermaking, fertilizer, food, and pharmaceuticals due to its excellent duplex austenite-ferrite structure.
Advantages
Pitting Corrosion Resistance
S32760 is an alloy designed with 24% chromium, 4% molybdenum, and 0.3% nitrogen, and undergoes solution treatment to form a stable passive film. Its Pitting Resistance Equivalent Number (PREN) exceeds 40, making it resistant to pitting and crevice corrosion in high-chloride environments.
High Yield Strength
The material's yield strength is ≥550 MPa, more than double that of conventional 304 stainless steel. Controlled rolling and controlled cooling technology creates a 50:50 ferrite/austenite duplex structure, enhancing its pressure-bearing capacity and mechanical strength, making it suitable for high-load systems.
Chloride Stress Corrosion Resistance
The ferrite phase ratio is precisely controlled through heat treatment, suppressing intergranular slip and improving the material's resistance to stress corrosion cracking in high-temperature, high-chloride environments. It is particularly suitable for use in critical areas of seawater cooling and chemical chlorination processes.
High Processing Adaptability
S32760 boasts an elongation of ≥25%. Through medium-temperature solution heat treatment and multiple cold working steps, it exhibits excellent weldability and formability, making it suitable for deep processing projects such as precision pipe bending and rapid prototyping and assembly of multi-weld structural components.
Applications
Corrosion-resistant piping in seawater desalination equipment
Used in distillation and high-pressure system piping, it resists chloride ion corrosion and extends equipment life.
Wellhead pipelines in the oil and gas industry
Used in wellhead and subsea transportation systems, it offers strong pressure resistance and prevents sulfide stress corrosion.
Transporting corrosive media in chemical plants
Suitable for piping containing chloric acid, resisting localized corrosion and reducing maintenance frequency.
Alkali liquor treatment systems in the papermaking industry
Used in black liquor and cooking processes, it offers strong alkali resistance and effectively prevents stress corrosion cracking.
Product Parameters
|
Product Name |
ASTM A789/A790 S32760 Duplex Stainless Steel Pipe |
|
Out Diameter |
10-813mm |
|
Wall Thickness |
0.5-60mm |
|
Material Standard |
ASTM A789, ASTM A790 |
|
Steel Grade |
S32760 |
|
Surface |
Pickling, Solid solution, Polishing |
|
Packing |
Plastic Film, Plastic Cap, Bundle, Woven bag, Wooden Case, Iron Frame |
|
Delivery |
Within 3 days with stock, 15-50 days based on production |
|
Payment |
T/T, D/P, L/C at sight, Usance L/C, etc. |
Chemical Requirements
|
Composition, % |
|||||||||||
|
Grade |
C |
Mn |
P |
S |
Si |
Ni |
Cr |
Mo |
N |
Cu |
Others |
|
S32760 |
0.030max |
1.00max |
0.030max |
0.010max |
1.00max |
6.00-8.00 |
24.00-26.00 |
3.00-4.00 |
0.20-0.30 |
0.50-1.00 |
W0.50-1.00 |
Mechanical Property
|
Grade |
Tensile strength Min Ksi(Mpa) |
Yield strength Min Ksi(Mpa) |
Elongation % min |
Hardness max |
||
|
Brinell HBW |
Rockwell HRB |
Vickers HV |
||||
|
S32760 |
109(750) |
80(550) |
25 |
310 |
32 |
310 |
Product Show
Our company maintains a year-round inventory of 3,000 tons of duplex stainless steel pipes, all of which are newly manufactured within the current year. This ensures fast fulfillment of urgent orders for standard sizes. Stock materials primarily include TP304 and TP316L, while special grades can be customized upon request.
Product Packing
When internal surface protection is required, appropriate packaging materials are applied. Common options include kraft paper, vapor-phase corrosion inhibitor paper, greaseproof paper, plastic film, and plastic end caps. If needed, the pipe surface can be coated with a corrosion-resistant layer.
Why Choose us
Hebei Yongqiang Pipeline Co., Ltd. is a professional steel pipe supplier integrating R&D, production, and sales. Its products include austenitic stainless steel pipes, duplex stainless steel pipes, alloy steel pipes, casing steel pipes, steel pipe accessories, steel flanges, etc.
- We have a professional technical team available to assist with product inquiries and provide tailored solutions.
- Custom production based on customer drawings is available to meet specific application requirements.
- We implement a complete quality control process, including raw material inspection, in-process checks, final product testing, and packaging verification.
- To accommodate urgent orders, we guarantee delivery within three days for in-stock items and within 15 days for made-to-order products.
We are experts in ASTM A789/A790 S32760 duplex stainless steel pipes. We welcome you to contact us and visit our company.
Email: johnny@yqpipeline.com
WhatsApp: +86 15632733100
Tel: +86 317 6376727
FAQ
Q: What is S32760 Duplex Stainless Steel Pipe?
A: Super Duplex UNS S32760 is among the most common super duplex grades in the market. UNS S32760 is a duplex stainless steel especially designed for service in aggressive chloride-containing environments and has additions of W and Cu compared to UNS S32750.
Q: What are the key properties of S32760 Duplex Stainless Steel Pipe?
A: Excellent corrosion resistance in a wide variety of corrosive chemicals.Pitting Resistance Equivalent number (PREN) of >40.Outstanding resistance to pitting and crevice corrosion in seawater and other chloride-containing environments.Critical Pitting Temperature exceeding 50°C.High strength compared to austenitic and 22%Cr duplex stainless steels.Excellent ductility and impact strength at both ambient and sub-zero temperatures.High resistance to abrasion, erosion, and cavitation erosion.Excellent resistance to stress corrosion cracking in chloride-containing environments.Listed in NACE MR 0175 for sour service.ASME Approval for Pressure Vessel application
Q: What are the benefits of using S32760 Duplex Stainless Steel Pipe over other materials?
A: These S32760 grade pipes are built with a microstructure of austenitic and ferritic alloys. This combination helps the alloy with better metal strength and provides enhanced protection from various corrosions.
Q: Is S32760 Duplex Stainless Steel Pipe resistant to corrosion?
A: High impact strength at sub-zero temperatures, UNS S32760 displays excellent corrosion resistance. Suitable for use in harsh environments, UNS S32760 is a cost-effective super duplex stainless steel.
Q: Can S32760 Duplex Stainless Steel Pipe withstand high temperatures?
A: Lastly, it is highly resistant to strong alkalis and resists corrosion in many non-oxidizing acids. Use of this super duplex stainless steel is not recommended when it involves extended exposure to temperatures greater than 572°F. This exposure causes a substantial reduction in toughness.
Q: Can S32760 Duplex Stainless Steel Pipe be used in marine environments?
A: The steel combines high mechanical strength (typically up to 600 MPa yield strength) and good ductility with outstanding corrosion resistance to marine environments and a wide, diverse range of oil & gas production environments.
Q: What standard specifications govern the production of S32760 Duplex Stainless Steel Pipe?
A: All ASTM A790 Duplex UNS S32760 Pipes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) Draw & Expansion as per required Size & Length, Polish (Electro & Commercial), Annealed & Pickled, Bending, Machining, Etc.
Q: What is the difference between S32760 Duplex Stainless Steel Pipe and other types of stainless steel pipes?
A: Super Duplex Steel S32760 ERW Tubes offer superior corrosion resistance compared to other duplex steels due to their higher chromium and lower carbon content levels.
Q: How does the chemical composition of S32760 Duplex Stainless Steel Pipe affect its performance in various applications?
A: Higher chromium, molybdenum, and nitrogen content make it highly resistant to pitting, crevice corrosion, and other corrosions. The excellent overall performance of S32760 duplex steel is superior to that of general dual-phase steel, such as 2205, S31803, and so on.
Q: Can S32760 Duplex Stainless Steel Pipe be used for gas distribution systems?
A: The Super Duplex alloys S32750 and S32760, commercially known as 2507 and Z100, respectively, have been widely and successfully applied in Oil and Gas and Desalination applications for many years.
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