2507 Super Duplex and 439 Ferritic Corrosion Resistant Stainless Steel Plate and Sheet

Looking for stainless steel flat products for industrial manufacturing or corrosion-resistant equipment? We supply stainless steel plates and sheets in different grades, dimensions, and surface finishes to meet a variety of project requirements.

2507 Super Duplex Stainless Steel (UNS S32750) combines high mechanical strength with excellent resistance to pitting, crevice corrosion, and chloride-related stress corrosion cracking. It is commonly selected for demanding marine, chemical processing, and offshore applications.

Grade 439 Stainless Steel is a ferritic stainless steel used in applications where oxidation resistance, formability, and practical material costs are important. The appropriate grade depends on the operating environment and required performance.

Steel components exposed to moisture, chemicals, saltwater, or elevated temperatures may experience corrosion, surface deterioration, or premature failure. Selecting an unsuitable material can also increase maintenance requirements and replacement costs.

For this reason, buyers should evaluate the working environment, mechanical requirements, fabrication method, and expected service life before choosing a stainless steel grade.

We offer material options for different application needs:

• 2507 Super Duplex: Suitable for demanding chloride-containing environments where high strength and corrosion resistance are required.
• 439 Ferritic Stainless Steel: A practical option for selected applications involving heat exposure, oxidation resistance, and formed components.

Available supply options can be discussed according to your required grade, thickness, width, length, surface finish, and order quantity. Material certificates and inspection requirements should be confirmed before production or shipment.

Please specify the required grade when requesting a quotation. Dimensions, standards, surface finish, and delivery schedule will be confirmed according to the actual order.

Depending on the selected grade and technical requirements, stainless steel plates and sheets may be used in:

• Marine and seawater-related equipment
• Chemical processing facilities
• Industrial tanks and fabricated components
• Heat-resistant components and exhaust systems
• Machinery housings and formed metal parts
• General industrial fabrication

2507 is generally considered for more aggressive corrosive environments, while 439 is used in selected ferritic stainless steel applications. Final suitability should be verified against the operating conditions.

The performance of stainless steel depends on its alloy composition, microstructure, surface condition, and processing quality.

Grade 2507 uses a duplex microstructure to provide a combination of strength and corrosion resistance. Grade 439 has a ferritic structure and is designed for different performance priorities.

During material selection, confirm the grade designation and applicable product standard. For critical applications, review the mill test certificate and any required mechanical, chemical, or corrosion testing.

Before placing an order, consider the following points:

1. Material grade: Confirm whether the project requires UNS S32750 / 2507 or grade 439.
2. Dimensions: Provide thickness, width, and length, together with dimensional tolerances if necessary.
3. Surface finish: Specify the required finish according to the intended fabrication or appearance.
4. Service environment: Consider chloride exposure, temperature, chemicals, and mechanical loading.
5. Documentation: Confirm the applicable ASTM or other standard, material certificate, and inspection requirements.
6. Commercial terms: State the order quantity, destination port, preferred trade term, and expected delivery date.

Providing these details helps us prepare a quotation that more closely matches your requirements.

2507 is a super duplex grade developed for high strength and demanding corrosion resistance. Grade 439 is ferritic stainless steel intended for different application requirements. They are not interchangeable without technical approval.

Please send your required thickness, width, length, and quantity so we can check available supply and processing options.

Pricing depends on the grade, dimensions, order quantity, surface finish, market conditions, and delivery terms. We can quote per kilogram or per ton.

Mill test certificates can be discussed according to the material source and order requirements. Please advise the required standard and documentation before ordering.

Send us the grade, dimensions, quantity, destination port, and preferred trade term. We will review the details and provide a quotation based on the confirmed requirements.