STS410L – Ultra-Low Carbon Ferritic Alloy For Enhanced Weldability & Corrosion Resistance

Overview

STS410L is an ultra-low carbon ferritic stainless steel, distinguished by its ≤0.03% carbon content which significantly improves corrosion resistance and weldability compared to standard STS410. With 11.00-13.50% chromium, it forms a dense passive film to resist atmospheric, freshwater, and mild chemical corrosion. As a ferritic grade, it is magnetic, has good thermal conductivity, and is non-heat-treatable, maintaining stable mechanical properties during stamping, bending, and welding. Its low carbon content eliminates the need for post-weld annealing, making it ideal for welded structures in mild corrosive environments.

Chemical Composition (wt%)

C ≤ 0.03, Cr: 11.00-13.50, Mn ≤ 1.00, Si ≤ 1.00, P ≤ 0.040, S ≤ 0.030, Ni ≤ 0.60

Typical Mechanical Properties (Annealed Condition)

Tensile Strength (Rm): ≥ 360 MPa; Yield Strength (Rp0.2): ≥ 195 MPa; Elongation (A): ≥ 22%; Brinell Hardness (HB): ≤ 183

Core Advantages

Ultra-low carbon content prevents intergranular corrosion after welding; no post-weld annealing required; good formability for various fabrication processes; magnetic with high thermal conductivity; cost-effective for general-purpose applications; compatible with all common welding methods; superior chloride stress corrosion resistance compared to austenitic grades.

Applications

Welded industrial piping, chemical storage tanks (mild media), food processing equipment, architectural railings, household appliance parts, and general structural components in mild corrosive environments.

Equivalent Grades

EN 1.4003, UNS S41003, GB 022Cr12, AISI 410L, SUS410L

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.