SUS316L Austenitic Stainless Steel – Low-Carbon Weldable Corrosion Champion

Product Introduction

SUS316L is the low-carbon iteration of SUS316, optimized for welded components in chloride-rich environments. With a carbon content capped at 0.03%, it prevents intergranular corrosion in the heat-affected zone during welding, eliminating the need for post-weld annealing. This grade inherits the molybdenum-enhanced corrosion resistance of SUS316, offering unmatched reliability for welded structures in harsh environments. It boasts enhanced ductility and weld integrity compared to SUS316, making it the gold standard for critical equipment in chemical, marine, and pharmaceutical industries where corrosion failure is unacceptable.

Chemical Composition (wt%)

C ≤ 0.03, Cr: 16.00-18.50, Ni: 10.00-14.00, Mo: 2.00-3.00, Mn ≤ 2.00, Si ≤ 1.00, P ≤ 0.045, S ≤ 0.030

Mechanical Properties (Annealed State)

Tensile Strength ≥ 480 MPa, Yield Strength ≥ 175 MPa, Elongation ≥ 40%, Hardness ≤ 215 HB

Core Advantages

Stable corrosion performance in weld zones without post-treatment; superior intergranular corrosion resistance; full chloride protection of SUS316; excellent weldability and ductility; non-magnetic; ideal for heavy welded corrosive components.

Typical Applications

Chemical storage tanks, offshore platform components, medical devices, welded heat exchangers, pharmaceutical pipelines, and marine vessel fittings.

Equivalent Grades

AISI 316L, UNS S31603, EN 1.4404, GB 022Cr17Ni12Mo2.

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.