
AISI 431 S43100 SUS431 1.4057 Forged Stainless Steel Round Bar. High Strength Martensitic Steel: Tensile strength ranges from 862 to 1350 MPa with excellent corrosion resistance. Multiple Smelting Options: Available via EAF, EAF+LF+VD, ESR, PESR, and VIM+PESR processes. Comprehensive Heat Treatment: Options include Annealed, Normalized, Quenched and Tempered, and Precipitation Hardened. Customization Services: Supports full customization, minor customization, and flexible customization from designs or samples. Versatile Surface Finishes: Offers Black, Grounded, Machined, Peeled/Turned, and Polished surface options. Wide Application Range: Ideal for aircraft, fasteners, bolts, valve components, and chemical equipment. Flexible Payment Terms: Accepts T/T, L/C, and O/A (request credit) for international transactions.