Super duplex 2507 is specified for demanding environments where high strength and strong resistance to localized corrosion are required. Seamless rolled rings in 2507 may be considered for offshore systems, seawater equipment, chemical processing and other severe service components. Because the alloy is highly engineered, the purchase specification should define more than the nominal grade: it should identify the product standard, heat-treatment condition and supplementary verification.
2507 generally offers a higher alloy content and is used when the design requires a greater corrosion-resistance margin than standard duplex 2205 can provide. Actual performance still depends on chloride concentration, temperature, crevice geometry, flow conditions and stress. The material should be selected using project-specific corrosion data and engineering approval.
Duplex microstructure is sensitive to thermal history. Ring rolling, solution treatment and cooling must be managed within the applicable process requirements. The purchaser may specify ferrite measurement, metallographic examination or corrosion testing. Define test location, method and acceptance limits before manufacture.
Provide OD, ID, height, radial wall and any machined features. Identify the rolled blank envelope separately from finished dimensions. Because the material is strong, CNC machining parameters and tooling need to be selected accordingly. Specify final tolerances, surface finish, flatness and runout for functional faces.
Depending on project requirements, documentation may include heat traceability, chemistry, tensile testing, hardness, phase-balance results, corrosion tests, UT, PMI and dimensional reports. A useful RFQ includes the service medium, design temperature, applicable code, drawing, quantity and required certificate package.
We also provide forging blanks and CNC precision machining services for our clients, covering industries such as energy, petrochemicals, steel, engineering machinery, plastics, prevention and control, hydraulics, healthcare, and food. Please feel free to send us drawings for inquiries.
Metalworking Services
CNC Machining
Sheet Metal Fabrication
Metal Welding
Metal Cutting
Metal Bending
Metal Punching
Metal Forging
Metal Sheet Rolling
Tube and Plate Drilling
Our heavy-duty forging presses support open-die forging and deformation of large-section forgings, including discs, shafts, blocks, and custom components. This capability enables us to meet the demanding forming requirements of heavy industrial applications.
Heat treatment is a critical step in achieving the mechanical properties required for heavy-duty forgings. Our process capabilities meet the strength, toughness, and structural stability requirements for forged components used under demanding operating conditions.
We offer machining capabilities for large forged shafts and long cylindrical components, supporting both rough and finish machining. This capacity is suitable for stepped shafts, rotor shafts, rollers, and other heavy-duty forged shaft components.
Our machining facilities are capable of handling large ring-shaped forgings and circular parts that require precise turning, face machining, boring, and contour control. This capability is suitable for industrial ring blanks, heavy-duty circular parts, and machined ring forgings.
We offer machining solutions for heavy-duty cylindrical, hollow, and tubular forgings. This capability supports the machining of sleeves, cylinders, and other thick-walled forged components used in pressure vessels, rotating systems, and general industrial applications.
Quality control is integrated into our production process through the inspection and testing of forged and machined parts. Our capabilities help verify the dimensional accuracy, condition, and quality consistency of industrial forgings prior to delivery.
Finished forgings are properly protected and packaged to minimize the risk of damage during storage and transportation. Our packaging methods ensure the safe domestic delivery and export shipment of machined and high-value forged components.
