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{"title":"Corrosion Resistant Duplex Steel Pipes, High Strength, EN 10216","imgUrl":"https:\/\/img.chinax.com\/nimg\/3c\/ec\/9299e6726553e6c0cecfbbfce7e7-200x200-1\/corrosion_resistant_duplex_steel_pipes_2c_high_strength_2c_en_10216.jpg","attrs":{"Brand Name":"Jiangsu China Steel Union","Model Number":"SS304,SS316L,SS321,SS310S,SS2205,SS304H","Certification":"ISO9001,SGS, ASTM, ASME","Place of Origin":"CHINA WUXI"}}
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{"title":"Sanitary Welded Stainless Steel Pipes, Mirror Finish, FDA Compliant","imgUrl":"https:\/\/img.chinax.com\/nimg\/7c\/a9\/80a4628e034614af332478a3230b-200x200-1\/sanitary_welded_stainless_steel_pipes_2c_mirror_finish_2c_fda_compliant.jpg","attrs":{"Brand Name":"Jiangsu China Steel Union","Model Number":"SS304,SS316L,SS321,SS310S,SS2205,SS304H","Certification":"ISO9001,SGS, ASTM, ASME","Place of Origin":"CHINA WUXI"}}
{"title":"ASTM A312 Stainless Steel Pipes, 1\/2"-24", Corrosion Resistant FDA Compliant","imgUrl":"https:\/\/img.chinax.com\/nimg\/49\/79\/e711a2e692fdd649fd08bc582a0d-200x200-1\/astm_a312_stainless_steel_pipes_2c_1_2f2_22_24_22_2c_corrosion_resistant_fda_compliant.jpg","attrs":{"Brand Name":"Jiangsu China Steel Union","Model Number":"SS304,SS316L,SS321,SS310S,SS2205,SS304H","Certification":"ISO9001,SGS, ASTM, ASME","Place of Origin":"CHINA WUXI"}}
{"title":"Large Diameter Stainless Steel Pipes, 24"-48", For Pipeline Systems","imgUrl":"https:\/\/img.chinax.com\/nimg\/c3\/e9\/de8c1ce44dca58185e0b0d589368-200x200-1\/large_diameter_stainless_steel_pipes_2c_24_22_48_22_2c_for_pipeline_systems.jpg","attrs":{"Brand Name":"Jiangsu China Steel Union","Model Number":"SS304,SS316L,SS321,SS310S,SS2205,SS304H","Certification":"ISO9001,SGS, ASTM, ASME","Place of Origin":"CHINA WUXI"}}
Corrosion Resistant Duplex Steel Pipes are high-performance tubular products engineered for the most demanding industrial environments. By integrating a balanced microstructure of austenite and ferrite phases, these pipes deliver exceptional strength and superior resistance to a wide range of corrosive media, including chlorides, acids, and caustic solutions. The unique dual-phase structure is the core differentiator, setting Corrosion Resistant Duplex Steel Pipes apart from conventional stainless steel grades. They are the optimal solution for critical applications where failure is not an option, offering an outstanding combination of longevity, mechanical robustness, and cost-effectiveness over the entire lifecycle.Product Characteristics & Advantages:
•Exceptional Strength: Possesses over double the yield strength of standard austenitic stainless steels (e.g., 304, 316), allowing for reduced wall thickness and material savings.
•Superior Corrosion Resistance: Offers excellent resistance to stress corrosion cracking (SCC), pitting, and crevice corrosion, particularly in chloride-containing environments.
•Economic Efficiency: The high strength-to-weight ratio and enhanced durability translate to lower lifetime costs despite a higher initial investment compared to standard grades.
•Good Weldability & Fabrication: Can be welded and fabricated using standard procedures, ensuring ease of installation and integration into existing systems.
Technology & Manufacturing:Corrosion Resistant Duplex Steel Pipes are produced through a precisely controlled process. It begins with melting in electric arc or AOD (Argon Oxygen Decarburization) furnaces to achieve precise chemistry. The material is then formed into pipes via extrusion or seamless piercing methods, followed by a critical solution annealing and rapid quenching heat treatment. This process dissolves deleterious phases and secures the ideal 50/50 austenite-ferrite balance, which is essential for the performance of Duplex Steel Pipes. Advanced non-destructive testing (NDT) ensures integrity throughout production.Typical Applications:
•Oil & Gas: Subsea flow lines, process piping, topside piping.
Key Selling Points:The primary advantage of Corrosion Resistant Duplex Steel Pipes lies in their unmatched synergy of strength and corrosion resistance. This dual capability makes them a versatile and reliable choice, reducing maintenance frequency and mitigating the risk of unexpected downtime. Furthermore, their lighter potential weight contributes to easier handling and potential structural support savings in large-scale projects.Service & Support:We provide comprehensive technical data sheets, material test certificates (3.1 or 3.2 per EN 10204), and application-specific guidance. Our Corrosion Resistant Duplex Steel Pipes are available in a range of sizes, schedules, and can be supplied as seamless or welded, with ends prepared as per project requirements.FAQ:
•Q: What is the temperature limit for Duplex Steel Pipes?A: Standard Duplex 2205 pipes are typically recommended for continuous service up to approximately 300°C (572°F) to avoid embrittlement.
•Q: How do I weld Duplex Steel Pipes correctly?A: Welding requires controlled heat input and the use of matching or over-alloyed duplex filler metals to maintain the corrosion resistance and phase balance in the weld zone. Specific WPS (Welding Procedure Specification) should be followed.
•Q: What is the difference between S31803 and S32205?
A: Both are standard duplex grades. S32205 typically has tighter chemical composition controls, especially for nitrogen, ensuring more consistent and slightly improved properties compared to S31803.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Seller
Year Established:
2010
Total Annual:
20000000-50000000
Employee Number:
30~60
Ecer Certification：
Verified Supplier
JIANGSU CHINA STEEL UNION INDUSTRIAL CO.,LTD.
Specializing in premium stainless steel products (sheets, pipes, high-pressure tubes, bars), aluminum/steel coils, galvanized steel, and copper alloys. Equipped with advanced cold-rolling mills, CNC machining centers, and plasma cutting systems, we su... JIANGSU CHINA STEEL UNION INDUSTRIAL CO.,LTD.
Specializing in premium stainless steel products (sheets, pipes, high-pressure tubes, bars), aluminum/steel coils, galvanized steel, and copper alloys. Equipped with advanced cold-rolling mills, CNC machining centers, and plasma cutting systems, we su...
