从China供应商批发进口2507 Stainless Steel — FOB条款

2507 stainless steel, also known as UNS S32750, is a super duplex grade with a two-phase microstructure of austenite and ferrite that delivers exceptional strength and corrosion resistance. This alloy contains 25% chromium, 7% nickel, 4% molybdenum, and nitrogen additions, which provide superior resistance to chloride-induced pitting, crevice corrosion, and stress corrosion cracking in aggressive environments such as seawater, acidic solutions, and chloride-rich media. The material is supplied as pipe in seamless and welded forms, conforming to ASTM A790 standards, and is engineered for high-pressure, high-temperature applications where standard austenitic or ferritic stainless steels would fail.

The chemical composition and microstructure of 2507 stainless steel ensure it maintains high tensile and yield strength at both ambient and elevated temperatures, with typical yield strength exceeding 550 MPa and tensile strength above 800 MPa. Its nitrogen content stabilises the austenite phase, improving toughness and resistance to intergranular corrosion, while the balanced ferrite-austenite ratio enhances resistance to chloride stress corrosion cracking. Industry standards such as ASTM A240, EN 10088-2, and GB/T 3280 define its chemical and mechanical properties, and it is commonly tested under ASTM G48 for pitting resistance and NORSOK MDS D55 for offshore suitability. Common forms include pipe, coil, strip, plate, sheet, tube, flat bar, and round bar, each tailored to specific industrial needs.

This grade is widely adopted in offshore oil and gas platforms, chemical processing plants, desalination facilities, and marine engineering due to its ability to withstand harsh corrosive conditions without compromising structural integrity. Buyers in these sectors prioritise 2507 for subsea pipelines, heat exchangers, and pressure vessels where reliability under extreme stress is critical. The material’s versatility extends to petrochemical equipment, fuel gas purification systems, and structural components requiring both high strength and corrosion resistance. For bulk procurement, buyers should confirm form, dimensions, and surface finish, as these directly impact performance in end-use applications.

China Economic Steel Group (Guangdong) operates from Guanglong Industrial Zone in Chencun Town, Shunde District, Foshan City, Guangdong Province. The company is positioned in a major industrial hub known for its extensive steel production and export capabilities. Its harbor trust tier indicates a verified level of operational transparency, though current response metrics are not publicly available, and buyers are advised to contact the supplier directly for real-time communication details.

The supplier specialises in super duplex stainless steel products, including 2507 grade materials, and serves industries requiring high-performance alloys for corrosive environments. While the profile does not disclose production capacity, certifications, or client lists, the focus on ASTM and other international standards suggests alignment with global quality benchmarks. Buyers should verify specific capabilities, such as heat treatment processes and third-party testing, during direct negotiations.