316 – Molybdenum-Reinforced Austenitic Steel: Chloride Environment Corrosion Fighter

Overview

316 is a premium austenitic stainless steel, differentiated by its 2.00-3.00% molybdenum addition that drastically improves pitting and crevice corrosion resistance in chloride-containing media. Composed of 16.00-18.00% chromium and 10.00-14.00% nickel, it forms a stable face-centered cubic austenitic structure, ensuring non-magnetic properties in the annealed state. This grade boasts excellent ductility, cold forming ability, and weldability, requiring no complex preheating or post-weld treatment for most applications. Compared to 304, it provides superior performance in seawater, salt mist, and mild chemical environments, becoming the go-to material for moderate corrosive conditions.

Chemical Composition (wt%)

C ≤ 0.08, Si ≤ 1.00, Mn ≤ 2.00, P ≤ 0.045, S ≤ 0.030, Cr: 16.00-18.00, Ni: 10.00-14.00, Mo: 2.00-3.00

Typical Mechanical Properties (Annealed Condition)

Tensile Strength (Rm): ≥ 520 MPa; Yield Strength (Rp0.2): ≥ 205 MPa; Elongation (A): ≥ 40%; Brinell Hardness (HB): ≤ 187

Core Advantages

Molybdenum addition significantly improves chloride corrosion resistance; non-magnetic and highly ductile for complex forming; reliable weldability with minimal post-processing; balanced strength and corrosion performance; versatile for moderate corrosive environments.

Applications

Coastal architectural decorations, marine hardware, chemical pressure vessels, food and pharmaceutical equipment, pulp and paper machinery, and water treatment systems.

Equivalent Grades

UNS S31600, STS316, SUS316, EN 1.4401, GB 06Cr17Ni12Mo2

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.