UNS S43000 Ferritic Stainless Steel – Corrosion-Resistant Cost-Effective Alloy

Description

UNS S43000 is a widely used ferritic stainless steel, celebrated for its good corrosion resistance, excellent formability, and cost-effectiveness. With 16.0-18.0% chromium, it delivers superior protection against atmospheric and mild chemical corrosion compared to lower-chromium ferritic grades like S40900. Its ferritic microstructure ensures magnetic properties, and it cannot be hardened by heat treatment, but it offers exceptional weldability, machinability, and surface finish. Unlike austenitic grades such as S30400, S43000 is more affordable and suitable for applications where extreme corrosion resistance is not required. It also has good high-temperature oxidation resistance, making it ideal for furnace parts and heat exchangers, as well as decorative and appliance applications.

Chemical Composition (wt%)

C ≤ 0.12, Cr: 16.00-18.00, Mn ≤ 1.00, Si ≤ 1.00, P ≤ 0.045, S ≤ 0.030, Ni ≤ 0.75

Mechanical Properties

Tensile Strength ≥ 450 MPa, Yield Strength ≥ 205 MPa, Elongation ≥ 22%, Hardness ≤ 183 HB

Advantages

Good corrosion resistance in mild environments; cost-effective vs. austenitic grades; excellent formability and weldability; magnetic; easy to machine and polish; reliable high-temperature oxidation resistance.

Applications

Architectural trim, decorative panels, kitchen appliances (sinks, ovens), food processing equipment, furnace parts, heat exchangers, automotive trim, and general-purpose components.

Equivalent Grades

AISI 430, EN 1.4016, GB 06Cr17, SUS430

 

Stainless Steel Suppliers

If you have project requirements for stainless steel, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, wires, etc. For detailed chemical composition information and free samples, please contact our factory immediately. We offer competitive prices and excellent service.Email: info@gneestainless.com

 

Testing and Documentation: Factory test certificate, EN 10204 3.1, chemical report, mechanical report, destructive testing report, non-destructive testing report, PMI test report, visual inspection report, third-party inspection report, NABL certified laboratory report.
Packaging: Wooden crate packaging, bubble wrap packaging, steel strapping, or packaging according to customer requirements.